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De Havilland Comet, Jetliner Story by WTTW Chicago

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WAL_DC-6B

WAL_DC-6B

Күн бұрын

Пікірлер: 979
@djpalindrome
@djpalindrome Жыл бұрын
Exceptionally well done documentary for a regional TV station
@WAL_DC-6B
@WAL_DC-6B Жыл бұрын
Yes, I agree!
@Original50
@Original50 3 жыл бұрын
As a 4 year-old in 1969 , I believe flew from Cyprus to the UK in a Comet. My father was RAF and he told me that as the aircraft took off, I was shouting 'Rocket-plane!', because it was a very steep and very fast climb. My father later flew in Nimrods, so he got to have a bit more fun... :O)
@stewsretroreviews
@stewsretroreviews 3 жыл бұрын
Excellent program of how important the Comet was to the whole of aviation today.
@rocketeerPM2500
@rocketeerPM2500 3 жыл бұрын
The Comet important to aviation today? What utter bloody rubbish. Show me ONE design feature of the type which endures in commercial jets.
@stewsretroreviews
@stewsretroreviews 3 жыл бұрын
@@rocketeerPM2500 It was the first bloody Airliner for a start, end of story!
@sandervanderkammen9230
@sandervanderkammen9230 2 жыл бұрын
@@stewsretroreviews The Comet Disaster was a colossal failure, the worst engineering failure in aviation history.
@stewsretroreviews
@stewsretroreviews 2 жыл бұрын
@@sandervanderkammen9230 Change the record San van, this is boring! 😴
@sandervanderkammen9230
@sandervanderkammen9230 2 жыл бұрын
@@stewsretroreviews Change the record? Wow, you sound really old...
@zeom76
@zeom76 2 жыл бұрын
I miss the VHS videos. Great to watch.
@aspetuckantiques5464
@aspetuckantiques5464 7 жыл бұрын
Thank you for posting this early program about the DeHavilland COMET. This program is from 1990, or back in the days when documentaries were crammed with information and didn't have 68 agonizing commercials shoe-horned in for every half hour of show, with half the content today being teasers and re-hash and little content! Great work!
@ady-uk7150
@ady-uk7150 7 жыл бұрын
Actually, I too thought the same. But then at 23:45 I noticed the Singapore Airlines Airbus A380!
@WAL_DC-6B
@WAL_DC-6B 7 жыл бұрын
Someone is claiming copyright to a piece of music used in this program. Consequently that copyright owner is taking advantage of the number of KZfaq views by allowing ads to be placed within this program. At least it's not a bunch of TV spots every ten minutes!
@LucasVanderBartlett
@LucasVanderBartlett 7 жыл бұрын
Ady WadyWoo that's a 747...
@WAL_DC-6B
@WAL_DC-6B 7 жыл бұрын
Well, at least you're not saying that's a Piper Cub.
@annalloret6419
@annalloret6419 5 жыл бұрын
Dan Uscian right on my ?..
@k2apache60
@k2apache60 3 жыл бұрын
What a beautifully shaped aircraft. The nose particulary is up there with the B-52 for looks and style with purpose. Thank God for these men that work to preserve these historical greats!
@sandervanderkammen9230
@sandervanderkammen9230 3 жыл бұрын
The Comet nose is copied from the Boeing 307, the world's first pressurized airliner.
@petemaly8950
@petemaly8950 Ай бұрын
​@@sandervanderkammen9230 ​​​@sandervanderkammen9230 Kharzeestan Krappenz DiktorBummer Jurkzxoffenz etc and co - they should all note good with much awestruckness & extreme wonderment. *UPDATE MORE BREAKING NEWS ETC* De Havilland (Of England) Comets were not grounded after 1970 due to structural problems. No the Comet nose was not copied from any airliner. *_It's interesting that some of the aircraft on the list should really have been noticeably safer than the Comet due to being a similar type but of much later design & manufacture but they definately were not safer._* How things were back then - *_Accident losses - % of aircraft built._* DeHavilland Comet 4 UK 14% DeHavilland Comet all mks 17% Vickers VC10 UK 5% *_The DH Comet had better safety than or similar safety to many other commercial passenger aircraft of a similar era_* Douglas DC-1 99% Douglas DC-2 47% Douglas DC-3 30% Douglas DC-4 26% Boeing s300 72% Boeing 307 70% Boeing 247 48% Boeing 707 20% Lockheed L-049/149 Constellation 30% Lockheed Electra Turboprop 29% Fairchild FH-227 30% McDonnell Douglas DC-8 14% Sud Aviation Caravelle 15% Canadair CL-44 Turboprop 46% Convair CV-580 Turboprop 22% A comparison of more recent aircraft. Accident losses comparison examples. 1970s - 1980s % of total Aircraft built Similar aircraft type, date / decade, useage, size. Biz Jets BAe-125-800 1.7 % Beechcraft Beechjet 400 2.2 % Cessna 550 Citation II 7.1 % Learjet 35 / 36 12 % Beechcraft 1900 6% Dassault Falcon 10 11.5% Aérospatiale SN.601 22.5% Medium size jets / Turboprops. BAe-146 5.1% Fokker 100 6% McDonnell Douglas DC-9-30 9.5% Fairchild FH-227 30% McDonnell Douglas DC-8 14% Canadair CL-44 Turboprop 46% Convair CV-580 Turboprop 22% Beechcraft, Fokker, McDonnell Douglass, Learjet, Fairchild, Aerospatiale, Canadair, Convair companies defunct. All Comets, including some Comet 1s, had full civilian use certification at some point after 1954, civilian use certification only being withdrawn after commercial flying stopped. Examples were flying until 1997 - one example did a signals research global circumnavigation flight series in 1993 via Australia virtually without a rest travelling 28000 miles, only had an ice warning indicator issue during the flights. *The DH Comet - World Firsts.* 1st gas turbine jet powered airliner. 1st high altitude 8psi pressurised full fuselage length passenger cabin airliner, not a trivial feature as structure strength required for pressurisation considerably exceeded strength required for normal flying stress. Nobody else had done anything similar before the Comet. The b-47 used 2 relatively small, heavily built pressurised modules (the aircraft where 6 had their wings fold up in 2 months while flying & some had their wings fall off while parked). The 1937 Boeing piston engined airliner pressurised passenger cabin was pressurised to 2 psi only - in fact that could easily be done as the normal unpressurized fuselage cabin structure strength for flying stresses only was all that was needed to be adequate so no significant weight increase issues needed addressing. 1st all hydraulically powered flying surface controls & actuators airliner with under carriage wheel disk brakes + ABS. 1st jet airliner to cross the Atlantic. 1st jet aircraft to do a world circumnavigation flights series. *Of course De Havilland had prior experience building many all metal construction airframe aircraft including thousands of jet powered fighter aircraft that were primarily of metal construction with pressurised cockpits & jet engines built by De-Havilland & we know the world's first all metal construction airframe airliner was built in England in the 1920s by Handley Page.* *_De Havilland did indeed always work to better than industry standards at the time, used up to date knowledge for the design & no evidence of negligence or criminal negligence was ever produced in relation to the DH Comet._* The course of De Havilland & the general UK aerospace industry sector was not affected even slightly by the DH Comet. *_Other interesting World firsts_* _World's first turboprop aircraft._ *Vickers Viscount Turboprop Airliner 1947.* *A 1945 Gloster Meteor Aircraft with Turboprop Gas Turbine Engine.* They might like to answer these questions. *Which airline has just ordered* *60 RR England Trent XWB Engines* *& What aircraft are the engines for?* _Bonus question for 10 points._ Which country has the *World's Highest Combined Per Capita* *Nuclear + Defence + Aerospace Sector Activity?* 👍 & 🙂 & of course 😎 indeed. Cheers. _Toodle_ -PIP- *Old* *_Chap._* . .... . ... . ... .. ... .... .. . .... Ivcxivcxiv cxcxiivxvivcx ccxx.cc
@haroldhastings
@haroldhastings 5 жыл бұрын
I remember as a child in the late 1950's / early 1960's being eager to fly in the Comet from Geneva, Switzerland, where my family lived, to London. I convinced my mother to book a flight with the Comet rather than one serviced by a Convair Metropolitan 440 propeller aircraft. I was thrilled to become a 'jet-setter' at such a young age. We also flew on a Caravelle from Geneva to Madrid at that time. I've loved flying new aircraft ever since ...
@alexp3752
@alexp3752 8 жыл бұрын
An amazing, wonderful film... Looking back, the British were far ahead of their time with the Comet. As an airline veteran for decades, I never knew before that hydraulics were first introduced for flight controls by deHavilland. The British also pioneered the science of aircraft accident investigation, which no doubt, has helped save countess lives over the past 60 years and beyond.
@epiksaber1187
@epiksaber1187 7 жыл бұрын
Alex P aaa
@doktorbimmer
@doktorbimmer 5 жыл бұрын
*Sadly de Havilland went defunct in 1959 because it remained decades behind Boeing and Douglas in large transport aircraft design and production... the **_Comet Disaster_** remains to this day the worst engineering failure in aviation history.*
@expansionone
@expansionone 5 жыл бұрын
many German bombers in WW2 had fully hydraulic flight controls, i.e. the Focke-Wulf Fw 200 Condor
@growinsane9123
@growinsane9123 4 жыл бұрын
@@doktorbimmer "the Comet Disaster remains to this day the worst engineering failure in aviation history"- I don't see how that statement is justified. If you measure failure as lives lost as a result of poor design, the 737 Max is already 4 times worse. If it is economic loss, the max will probably turn out to have had the highest costs there too (although it is still likely to end up being profitable overall). If we are trying to assess poor engineering design, well the DC-10 and even the 747 have had their fair share of door failure related incidents and they were not 1st generation jets so have less of an excuse. What measure of failure were you drawing upon?
@PenzancePete
@PenzancePete 4 жыл бұрын
@@doktorbimmer Boeing 737 max.
@mereclander
@mereclander 4 жыл бұрын
I think this is one of the coolest planes ever built. It is sooooo nice!!
@wrongtrack6095
@wrongtrack6095 7 жыл бұрын
What a beautiful aircraft. I have never seen one in person but De Havilland Comet line is wonderful achievement. I was fortunate to have travelled on the BEA Viscounts on many occasions when I was a young girl, I remember the huge seats and windows.
@barracuda7018
@barracuda7018 7 жыл бұрын
Yes ,an engineering marvel especially the speed with which it fell from the sky was impressive..
@doktorbimmer
@doktorbimmer 5 жыл бұрын
*The **_Comet Disaster_** was the worst engineering failure in aviation history.*
@awuma
@awuma 4 жыл бұрын
@@doktorbimmer Ummm ... how about the 737 MAX debacle? Many more died as a result.
@sandervanderkammen9230
@sandervanderkammen9230 4 жыл бұрын
@@awuma In passengers/ miles flown the Comet remains the deadliest airliner in history... 1 out every 4 Comets crashed or were destroyed making it the worst airliner in history.
@petemaly8950
@petemaly8950 Ай бұрын
​@@sandervanderkammen9230 ​​​@sandervanderkammen9230 Kharzeestan Krappenz DiktorBummer Jurkzxoffenz etc and co - they should all note good with much awestruckness & extreme wonderment. *UPDATE MORE BREAKING NEWS ETC* De Havilland (Of England) Comets were not grounded after 1970 due to structural problems. *_It's interesting that some of the aircraft on the list should really have been noticeably safer than the Comet due to being a similar type but of much later design & manufacture but they definately were not safer._* How things were back then - *_Accident losses - % of aircraft built._* DeHavilland Comet 4 UK 14% DeHavilland Comet all mks 17% Vickers VC10 UK 5% *_The DH Comet had better safety than or similar safety to many other commercial passenger aircraft of a similar era_* Douglas DC-1 99% Douglas DC-2 47% Douglas DC-3 30% Douglas DC-4 26% Boeing s300 72% Boeing 307 70% Boeing 247 48% Boeing 707 20% Lockheed L-049/149 Constellation 30% Lockheed Electra Turboprop 29% Fairchild FH-227 30% McDonnell Douglas DC-8 14% Sud Aviation Caravelle 15% Canadair CL-44 Turboprop 46% Convair CV-580 Turboprop 22% A comparison of more recent aircraft. Accident losses comparison examples. 1970s - 1980s % of total Aircraft built Similar aircraft type, date / decade, useage, size. Biz Jets BAe-125-800 1.7 % Beechcraft Beechjet 400 2.2 % Cessna 550 Citation II 7.1 % Learjet 35 / 36 12 % Beechcraft 1900 6% Dassault Falcon 10 11.5% Aérospatiale SN.601 22.5% Medium size jets / Turboprops. BAe-146 5.1% Fokker 100 6% McDonnell Douglas DC-9-30 9.5% Fairchild FH-227 30% McDonnell Douglas DC-8 14% Canadair CL-44 Turboprop 46% Convair CV-580 Turboprop 22% Beechcraft, Fokker, McDonnell Douglass, Learjet, Fairchild, Aerospatiale, Canadair, Convair companies defunct. All Comets, including some Comet 1s, had full civilian use certification at some point after 1954, civilian use certification only being withdrawn after commercial flying stopped. Examples were flying until 1997 - one example did a signals research global circumnavigation flight series in 1993 via Australia virtually without a rest travelling 28000 miles, only had an ice warning indicator issue during the flights. *The DH Comet - World Firsts.* 1st gas turbine jet powered airliner. 1st high altitude 8psi pressurised full fuselage length passenger cabin airliner, not a trivial feature as structure strength required for pressurisation considerably exceeded strength required for normal flying stress. Nobody else had done anything similar before the Comet. The b-47 used 2 relatively small, heavily built pressurised modules (the aircraft where 6 had their wings fold up in 2 months while flying & some had their wings fall off while parked). The 1937 Boeing piston engined airliner pressurised passenger cabin was pressurised to 2 psi only - in fact that could easily be done as the normal unpressurized fuselage cabin structure strength for flying stresses only was all that was needed to be adequate so no significant weight increase issues needed addressing. 1st all hydraulically powered flying surface controls & actuators airliner with under carriage wheel disk brakes + ABS. 1st jet airliner to cross the Atlantic. 1st jet aircraft to do a world circumnavigation flights series. *Of course De Havilland had prior experience building many all metal construction airframe aircraft including thousands of jet powered fighter aircraft that were primarily of metal construction with pressurised cockpits & jet engines built by De-Havilland & we know the world's first all metal construction airframe airliner was built in England in the 1920s by Handley Page.* *_De Havilland did indeed always work to better than industry standards at the time, used up to date knowledge for the design & no evidence of negligence or criminal negligence was ever produced in relation to the DH Comet._* The course of De Havilland & the general UK aerospace industry sector was not affected even slightly by the DH Comet. *_Other interesting World firsts_* _World's first turboprop aircraft._ *Vickers Viscount Turboprop Airliner 1947.* *A 1945 Gloster Meteor Aircraft with Turboprop Gas Turbine Engine.* They might like to answer these questions. *Which airline has just ordered* *60 RR England Trent XWB Engines* *& What aircraft are the engines for?* _Bonus question for 10 points._ Which country has the *World's Highest Combined Per Capita* *Nuclear + Defence + Aerospace Sector Activity?* 👍 & 🙂 & of course 😎 indeed. Cheers. _Toodle_ -PIP- *Old* *_Chap._* . .... . ... . ... .. .. . .... ... .... Ivcxivcxivcxcxiivxviv. cxiccxxcc
@michaelbaka4777
@michaelbaka4777 5 жыл бұрын
I was actually INSIDE this plane in 1986! My buddy worked at O'Hare, for one of the smaller companies. Me and a couple buds went up there and he let us in. This WAS before 9/11, remember! We only had one flashlight that worked well, but WOW! What a premium interior! It was dirty and smelled funky, but it was still all there! Bit of a squeeze getting in the cockpit, I seem to remember. This aircraft was one of the most beautiful machines I have EVER seen. Inside or out! Pity to see her in that condition.
@WAL_DC-6B
@WAL_DC-6B 5 жыл бұрын
Mike, I believe you're the first person to comment here who had actually been inside the "O'Hare Comet." Thanks for telling us a bit of that visit!
@ToyKingWonder
@ToyKingWonder 5 күн бұрын
Are you the same guy that wrote this on another forum? I don't believe this one, and yours sounds like BS as well. He let you in? As in, got a set of stairs over there, opened it up and brought you in? Yeah. Here's the other story that sounds even more far fetched: "Gerb SEPTEMBER 15, 2013 AT 9:37 AM I used to work at Ohare Airport in the fabulous 70’s, Me and a co worker got in that plane and we almost lost our chicago hot dog lunch, the smell was unreal, pure ass. There were clothes everywhere, dildos, beer can, tools, a saw, a lathe, and a taco machine in there. Up in the cockpit, inside the glovebox, were a bunch of fake beards and a shitted up pair of underware, I couldn’t believe it, this thing was in the air at somepoint?…….I still have flashbacks from seeing that, al those sweaty 70’s people, fartin and making tacos wearing fake beards….."
@AviationNut
@AviationNut 7 жыл бұрын
I always loved the look of the nimrod. I remember seeing it at an airshow here in the US i could not get enough of that plane it just looked so awesome.
@bmc9504
@bmc9504 5 жыл бұрын
You'll love this. kzfaq.info/get/bejne/e8undNKFu8qnhp8.html
@bobthebomb1596
@bobthebomb1596 3 жыл бұрын
Well done to everyone involved in the restoration of XA-NAS. Thanks for posting the video.
@WAL_DC-6B
@WAL_DC-6B 3 жыл бұрын
It's a shame this De Havilland Comet was scrapped less than three years after the broadcast of this program.
@rocnnrollbus
@rocnnrollbus 5 жыл бұрын
WTTW Channel 11 Chicago...best documentaries of my childhood.
@fanofjets
@fanofjets 7 жыл бұрын
She is indeed a beautiful aircraft - and certainly a classic. Pity that the O'Hare Comet eventually succumbed to the scrapman, but the example at Boeing Field will be restored back to her original Mexicana colors for aviation enthusiasts to admire. The Dan-Air Comet at Duxford has since been repainted to her original BOAC colors, though a Dan-Air example can be seen in Scotland.
@joekalista3343
@joekalista3343 5 жыл бұрын
As a youngster I became enfactuated with airplanes and flight. As an older adult I remain amazed that these hunks of steel can get if the ground. Your website and videos are beyond fantastic. Thanks for saving those clips for eternity and others to see what a pleasure it was to fly in past years. Wish the airline CEO'o would view them and provide some of the pleasures of flying that have disappeared forever.
@xetalq
@xetalq 7 жыл бұрын
I flew some 61 hours as a passenger in the Comet 4 as a very small child, when I journeyed to Japan, Hong Kong, Australia and back to London in 1960. I had no idea then of the Comet's history, of course, but my father was a Senior Captain (on the Bristol Britannia 312) with BOAC at the time, and had absolutely no qualms about our all travelling aboard the type. the Comet was a remarkable aircraft - so far ahead of everything else at the time of its first flight and entry into airline service - and its operation by BOAC showed all other airlines and aircraft manufacturers that money could indeed be made from jet passenger travel. Up until the advent of the Comet, this had widely been believed not to be possible. Boeing had tried to interest US airlines in the idea of jet travel with its model 473-60C in 1950, after President Bill Allen and his senior executives returned from the 1950 SBAM Air Show at Farnborough in England, where they had witnessed De Havilland's DH.106 Comet performing an aerial display. Bill Allen and his executives also visited the De Havilland's Comet factory at Hatfield in Hertfordshire, on the same visit. But the 473-60C was a purely paper exercise by Boeing, and in 1950, none of the US airlines would 'bite'. Without a significant launch order, Boeing was stymied because of the projected development costs. It was simply too risky to go ahead without either a significant advance order from an airline or US Government funding, and for the time being, Boeing had neither. Boeing persisted with the design on paper, however, and at about the time the Comet entered commercial airline service with BOAC in early 1952, the designs for the 367-80 were complete, and the project was green-lighted. It all looked like it could be a very costly mistake for Boeing when the Comet suffered the two crashes that were later to be identified as the result of metal fatigue. By the time the first 367-80 flew on 15 July 1954, De Havilland's Comet had already been grounded for over three months, subsequent to the second mysterious disintegration crash of the type (South African Airways ('SAA') flight SA201 on 8 April 1954). Intensive investigation of the Comet began, and the answer (metal fatigue) was found on on 24 June 1954. As this US TV documentary indicates, all the data from the Comet metal fatigue investigation were passed by De Havilland, the RAE, BOAC and HMG to Boeing (and all other US and worldwide aircraft manufacturers), to ensure that no other aircraft would suffer the Comet's fate. De Havilland's Chief Test Pilot, John "Cat's Eyes" Cunningham (a nickname he thoroughly disliked!), later reported that, in private conversations with engineers from both Boeing and Douglas when they subsequently visited the De Havilland factory in the UK, both companies' representatives discreetly admitted to Cunningham that if the fatigue problems had not happened with the Comet first, they would have happened with the Boeing 707 or the Douglas DC-8, instead. The first flight of Boeing's 367-80 (on 15 July 1954) was followed by that of the KC-135 on 31 August 1956, and finally by the first flight of the 707 on 20 December 1957. But it was US Government funding for a stop-gap order for 250 KC-135s, placed by USAF Secretary Harold E. Talbott in March 1955, that saved both Boeing and the 707 for posterity. In 1954, the USAF had held a competition for a jet-powered air tanker (for the air-to-air inflight refuelling role). In response, Boeing had offered the USAF its KC-135 design - a widened version of their 367-80 (the fuselage with of the KC-135 was increased by 12 inches/30.5 cm over that of the 367-80) - but Boeing and the the KC-135 was beaten out by Lockheed offering a militarised variant (designated the KCX-LO) of their civil L-193 airliner design, with its rear-mounted engines. Since the L-193 was not projected to be ready until 1959, the USAF made an order for 250 KC-135s (29 in the initial LRIP batch), to tide them over until the Lockheed was due to be ready. Although Boeing had prospered through its US Government contracts for the B-47 and B-52 for the USAF, it had gambled financially - without success, by this stage - on the 367-80, investing US$16 million of the company's money - a huge sum, at the time. Douglas, too, had begun its own jet-transport studies in 1952, and by mid-1953, the design was recognisably the DC-8. But this early Douglas design had only the same fuselage width as the Boeing 367-80 (132 ins), and was aimed - like Boeing's wider KC-135 (144 ins fuselage) - at the USAF's 1954 air tanker competition. When Douglas, too, lost the USAF air tanker competition (and Boeing was preferred over Douglas for the stop-gap order) in early 1955, Donald Douglas was stunned and upset, but decided so much money had already been spent on the DC-8 that he must press on. The DC-8 fuselage was then widened to 147 ins to allow 6-abreast seating in civil airline service. At this point, Boeing was offering a civilianised variant of the KC-135 to American Airlines as a passenger transport, but C R Smith (CEO of American) told Bill Allen & Boeing that American would not buy their aircraft unless the fuselage was widened from 144 ins to 147 ins, to match that of Douglas' DC-8. It aha been very expensive for an over-extended Boeing to widen the fuselage of the 367-80 from 132 ins to 144 ins for the KC-135, and widening it again to 147 ins would be a huge further cost, but Allen and Boeing knew they had little choice. Then the UK announced the Vickers VC7/V.1000 joint BOAC civil airliner/RAF Transport Command project, with a fuselage width of 148 ins. Now, Pan Am's Juan Trippe entered the equation, demanding that Boeing widen the fuselage of the KC-135 design yet again to match that of the 148 ins width of the Vickers design. At first, Allen balked (it was only 1 in different!), and so Trippe flew to the UK in 1955 and negotiated very visibly and very publicly with Vickers, even going so far as to sign a Letter of Interest with Vickers for 10 (ten) VC7s. In the face of this competition, Douglas balked, but Boeing caved, and the 707's fuselage was widened yet again to 148 ins, to match that of the Vickers. The cost of this final fuselage-widening - all of it loaded onto Boeing, yet again - was enormous. Pan Am then placed the very first order for the newly-widened 707 on 13 October 1955, signing agreements with Boeing dated 20 October 1955 (Pan Am hedged its bets very carefully, though, ordering 25 DC-8s from Douglas simultaneously). The Vickers VC7/V.1000 was cancelled by Sir Anthony Eden's Conservative Party Government in the UK just one month later, in November 1955 (for separate political reasons), which project cancellation was then followed by Lockheed later cancelling the L-193 project without a single L-193 ever being built. The first flight of the KC-135 occurred on 31 August 1956, with USAF service entry occurring in June 1957. The first flight of the Boeing 707 did not occur until 20 December 1957, with FAA-certification following on 18 September 1958. But de Havilland and BOAC had persisted with development of the DH.106, through the Comet 2 and Comet 3. First orders for the ultimate Comet 4 came from BOAC (in March 1955), which variant of the Comet type first flew on 27 April 1958, and received its UK CAA C of A on 24 September 1958. This first Comet 4 was delivered to BOAC the very next day. Trial runs by the Comet 4 across the Atlantic then followed,resulting in one Comet 4 aircraft being pre-positioned at New York's Idlewild airport, and another at London's Heath Row airport) by 2 October 1958. BOAC was thus able to inaugurate jet airline service across the Atlantic, both eastbound and westbound (using the two different Comet aircraft) on 4 October 1958. The Boeing 707 followed suit with a non-commercial flight from New York to Paris (for invited guests only) on 17 October 1958, and began its commercial trans-Atlantic service with a first flight open to the fare-paying public on 26 October 1958 (just over three weeks behind the BOAC trans-Atlantic service inauguration with the Comet 4). Before manufacturing ceased in 1964, De Havilland went on to manufacture and sell 114 civil variants of the Comet, which saw service with 23 different airlines and civilian operators. As Hawker Siddley, some 51 examples (including two prototypes) of the military Nimrod ASW/AEW Comet variant were manufactured for the RAF between 1967 and 1986. The Comet remained in commercial service until November 1980 (with Dan Air), and the Nimrod type continued in RAF service until June 2011. Commercial pressure was subsequently kept on the 707 initially by the Douglas DC-8 (which sold 556 of its aircraft) and by the Convair 880 & 990 (65 & 37 delivered of each type, respectively), and later by the Vickers VC10 (Vickers sold only 54 of this latter type, in all). Consequently, although Boeing eventually sold some 1,010 examples of the 707 by the time production ceased in 1979, it barely made any profits at all on the civil airliner (please read: "Boeing: Legend & Legacy" by the American author, Robert J Serling). It was with the sale of some 803 KC-135s to the US Government (USAF) that Boeing made its profits off this design. As with many things in life - but especially in aviation - it is not always best to be first, or to be the global pioneer of a new technology.
@tonkool4736
@tonkool4736 7 жыл бұрын
Wow, whát a story! :-). Oh well, I guess Boeing made a lot of profit later on with the 747?
@promerops
@promerops 7 жыл бұрын
I think so - eventually, once they had solved all the over-weight problems.
@johnharris7353
@johnharris7353 6 жыл бұрын
Xetalq thank you!
@cryptohunt2552
@cryptohunt2552 6 жыл бұрын
Great history! I flew on a Brittannia and a VC10 when I was a child in the 1960s.
@bobbypaluga4346
@bobbypaluga4346 5 жыл бұрын
xetalq The Brittannia was a fine aircraft as was the Viscount. Howard Hughes ordered 39 Britannia’s for his TWA airline. This occurred when the Britannia was on a US sales tour visiting every major US city as well as Canadian cities. It boggles the mind why they put so much work into a fine aircraft and did a nice sales job, but when they received the orders they had to turn them down because they were too large. Add that was the fate of Hughes order. Even then most US carriers flew a limited variety of aircraft. If United, American or TWA was going to buy it was for a whole lot more than 5 or 6.
@danielmorse6597
@danielmorse6597 5 жыл бұрын
Thank you for the great show and memories of WTTW.
@davidtaysom3592
@davidtaysom3592 3 жыл бұрын
Thanks so much for posting this really enjoyed it
@martinwulfe3718
@martinwulfe3718 Жыл бұрын
I flew in a Comet 4c in 1963, from LA to Mexico City with my parents. It was so smooth my father balanced a nickel on its edge.
@WAL_DC-6B
@WAL_DC-6B Жыл бұрын
Neat story! That had to have been a Mexicana Airlines Comet 4C.
@martinwulfe3718
@martinwulfe3718 Жыл бұрын
@@WAL_DC-6B No idea.
@threeparots1
@threeparots1 5 жыл бұрын
Very well done and thorough research of this great and its contemporaries. It even included AVRO C-102 Jetliner (another what could have story in itself), that didn’t share its design and construction oversights as related to metal fatigue. Great video.
@guerry4690
@guerry4690 7 жыл бұрын
Thank-you, sir! This was a wonderful documentary. I am a great aviation enthusiast and very nostalgic. At this time, I do not care about political or social differences. I find virtually all aircraft a work of art and truly love seeing them in operation. Of course, I have seen some pretty ugly designs, but these do not keep me from enjoying the rest. Thank-you again for posting this.
@hakan737
@hakan737 4 жыл бұрын
it was fantasci documentary..Thanks for sharing, even if I watched it years later.
@steviec8370
@steviec8370 4 жыл бұрын
Most beautiful airliner ever built. A simply stunning design.. If only they had gone with different windows I am sure the Comet would have become one of the most successful aircraft of all time.. You will notice the latest A350 is taking elements from the comet especially at the rear - as did the Dreamliner with its clear nod to the British beauty's nose.. What a shape..
@WAL_DC-6B
@WAL_DC-6B 4 жыл бұрын
Imagine how stunning it was when it first came out in 1949.
@gwidwock
@gwidwock 5 жыл бұрын
That was very educational and entertaining. Thank you!
@ste309w
@ste309w 5 жыл бұрын
The Comet 1 at RAF Cosford is still preserved and inside a hangar these days. Sadly the rest of their airliner collection was scrapped several years ago, including the only 707 in the UK. Amazing to see Cosford featured in a US produced documentary as it's local to me!
@syxepop
@syxepop 5 жыл бұрын
ste309w I suspect about 90% of the doc was mounted on a British-made doc (edited back then in '90, not on the present day), except for the start and the last few minutes (the change on accent is what gives it away). Which was still great because it completed whatever the British originally made. This completes the Mustard (on his YT account) 10 minute episode on this very airplane...
@sandervanderkammen9230
@sandervanderkammen9230 2 жыл бұрын
The RAF still operating 707s
@petemaly8950
@petemaly8950 Ай бұрын
​@@sandervanderkammen9230 ​​​@sandervanderkammen9230 Kharzeestan Krappenz DiktorBummer Jurkzxoffenz etc and co - they should all note good with much awestruckness & extreme wonderment. *UPDATE MORE BREAKING NEWS ETC* De Havilland (Of England) Comets were not grounded after 1970 due to structural problems The RAF do not operate 707s. *_It's interesting that some of the aircraft on the list should really have been noticeably safer than the Comet due to being a similar type but of much later design & manufacture but they definately were not safer._* How things were back then - *_Accident losses - % of aircraft built._* DeHavilland Comet 4 UK 14% DeHavilland Comet all mks 17% Vickers VC10 UK 5% *_The DH Comet had better safety than or similar safety to many other commercial passenger aircraft of a similar era_* Douglas DC-1 99% Douglas DC-2 47% Douglas DC-3 30% Douglas DC-4 26% Boeing s300 72% Boeing 307 70% Boeing 247 48% Boeing 707 20% Lockheed L-049/149 Constellation 30% Lockheed Electra Turboprop 29% Fairchild FH-227 30% McDonnell Douglas DC-8 14% Sud Aviation Caravelle 15% Canadair CL-44 Turboprop 46% Convair CV-580 Turboprop 22% A comparison of more recent aircraft. Accident losses comparison examples. 1970s - 1980s % of total Aircraft built Similar aircraft type, date / decade, useage, size. Biz Jets BAe-125-800 1.7 % Beechcraft Beechjet 400 2.2 % Cessna 550 Citation II 7.1 % Learjet 35 / 36 12 % Beechcraft 1900 6% Dassault Falcon 10 11.5% Aérospatiale SN.601 22.5% Medium size jets / Turboprops. BAe-146 5.1% Fokker 100 6% McDonnell Douglas DC-9-30 9.5% Fairchild FH-227 30% McDonnell Douglas DC-8 14% Canadair CL-44 Turboprop 46% Convair CV-580 Turboprop 22% Beechcraft, Fokker, McDonnell Douglass, Learjet, Fairchild, Aerospatiale, Canadair, Convair companies defunct. All Comets, including some Comet 1s, had full civilian use certification at some point after 1954, civilian use certification only being withdrawn after commercial flying stopped. Examples were flying until 1997 - one example did a signals research global circumnavigation flight series in 1993 via Australia virtually without a rest travelling 28000 miles, only had an ice warning indicator issue during the flights. *The DH Comet - World Firsts.* 1st gas turbine jet powered airliner. 1st high altitude 8psi pressurised full fuselage length passenger cabin airliner, not a trivial feature as structure strength required for pressurisation considerably exceeded strength required for normal flying stress. Nobody else had done anything similar before the Comet. The b-47 used 2 relatively small, heavily built pressurised modules (the aircraft where 6 had their wings fold up in 2 months while flying & some had their wings fall off while parked). The 1937 Boeing piston engined airliner pressurised passenger cabin was pressurised to 2 psi only - in fact that could easily be done as the normal unpressurized fuselage cabin structure strength for flying stresses only was all that was needed to be adequate so no significant weight increase issues needed addressing. 1st all hydraulically powered flying surface controls & actuators airliner with under carriage wheel disk brakes + ABS. 1st jet airliner to cross the Atlantic. 1st jet aircraft to do a world circumnavigation flights series. *Of course De Havilland had prior experience building many all metal construction airframe aircraft including thousands of jet powered fighter aircraft that were primarily of metal construction with pressurised cockpits & jet engines built by De-Havilland & we know the world's first all metal construction airframe airliner was built in England in the 1920s by Handley Page.* *_De Havilland did indeed always work to better than industry standards at the time, used up to date knowledge for the design & no evidence of negligence or criminal negligence was ever produced in relation to the DH Comet._* The course of De Havilland & the general UK aerospace industry sector was not affected even slightly by the DH Comet. *_Other interesting World firsts_* _World's first turboprop aircraft._ *Vickers Viscount Turboprop Airliner 1947.* *A 1945 Gloster Meteor Aircraft with Turboprop Gas Turbine Engine.* They might like to answer these questions. *Which airline has just ordered* *60 RR England Trent XWB Engines* *& What aircraft are the engines for?* _Bonus question for 10 points._ Which country has the *World's Highest Combined Per Capita* *Nuclear + Defence + Aerospace Sector Activity?* 👍 & 🙂 & of course 😎 indeed. Cheers. _Toodle_ -PIP- *Old* *_Chap._* . .... . ... . ... .. ... .... ... .... Ivcxivcxivcxcxiivx. vivcxiccxxcc
@josekirchner4040
@josekirchner4040 Жыл бұрын
I flew in a number of Comet 4Cs. The Comet incidents taught me to avoid flying brand new aircraft types, so I avoided the Lockheed Electra “whirl mode” wing shedding solved by the LEAP project, the early DC-10s with baggage door blowout / decompression issues, etc. (though I flew in many L188s and DC-10s later).
@WAL_DC-6B
@WAL_DC-6B Жыл бұрын
Thanks for your comment about waiting for airliners to clear themselves of issues before you'd fly on one. I flew on Lockheed L-188 Electras and Douglas DC-10s, but never a Comet. Lucky you!
@sandervanderkammen9230
@sandervanderkammen9230 Жыл бұрын
*Unfortunately the Comet would go on to continue crashing... it has the worst safety record of any jet airliner in history.*
@WilhelmKarsten
@WilhelmKarsten Жыл бұрын
The lesson is to not fly on British planes... even British airlines refused to buy them anymore.
@petemaly8950
@petemaly8950 5 ай бұрын
​@@WilhelmKarsten Chiney Leydeez should note For example *British airlines & others airlines bought -* *DH Comet (4) World's 1st Jet Airliner * *_Vickers VC10_* _VICKERS VISCOUNT World's 1st Turboprop airliner_ *BAC 111* *_BAE 146_* etc
@petemaly8950
@petemaly8950 4 ай бұрын
​@@WilhelmKarsten *UPDATE* *_It's interesting that some of the aircraft on the list should really have been noticeably safer than the Comet due to being a similar type but of much later design & manufacture but they definately were not safer._* How things were back then - *_Accident losses - % of aircraft built._* DeHavilland Comet 4 UK 14% DeHavilland Comet all mks 17% Vickers VC10 UK 5% *_The DH Comet had better safety than or similar safety to many other commercial passenger aircraft of a similar era_* Douglas DC-1 99% Douglas DC-2 47% Douglas DC-3 30% Douglas DC-4 26% Boeing s300 72% Boeing 307 70% Boeing 247 48% Boeing 707 20% Lockheed Electra Turboprop 29% Fairchild FH-227 30% McDonnell Douglas DC-8 14% Sud Aviation Caravelle 15% Canadair CL-44 Turboprop 46% Convair CV-580 Turboprop 22% A comparison of more recent aircraft. Accident losses comparison examples. 1970s - 1980s % of total Aircraft built Similar aircraft type, date / decade, useage, size. Biz Jets BAe-125-800 1.7 % Beechcraft Beechjet 400 2.2 % Cessna 550 Citation II 7.1 % Learjet 35 / 36 12 % Beechcraft 1900 6% Dassault Falcon 10 11.5% Aérospatiale SN.601 22.5% Medium size jets / Turboprops. BAe-146 5.1% Fokker 100 6% McDonnell Douglas DC-9-30 9.5% Fairchild FH-227 30% McDonnell Douglas DC-8 14% Canadair CL-44 Turboprop 46% Convair CV-580 Turboprop 22% Beechcraft, Fokker, McDonnell Douglass, Learjet, Fairchild, Aerospatiale, Canadair, Convair companies defunct. All Comets, including some Comet 1s, had full civilian use certification at some point after 1954, civilian use certification only being withdrawn after commercial flying stopped. Examples were flying until 1997 - one example did a signals research global circumnavigation flight series in 1993 via Australia virtually without a rest travelling 28000 miles, only had an ice warning indicator issue during the flights. *The DH Comet - World Firsts.* 1st gas turbine jet powered airliner. 1st high altitude 8psi pressurised full fuselage length passenger cabin airliner, not a trivial feature as structure strength required for pressurisation considerably exceeded strength required for normal flying stress. Nobody else had done anything similar before the Comet. The b-47 used 2 relatively small, heavily built pressurised modules (the aircraft where 6 had their wings fold up in 2 months while flying & some had their wings fall off while parked). The 1937 Boeing piston engined airliner pressurised passenger cabin was pressurised to 2 psi only - in fact that could easily be done as the normal unpressurized fuselage cabin structure strength for flying stresses only was all that was needed to be adequate so no significant weight increase issues needed addressing. 1st all hydraulically powered flying surface controls & actuators airliner with under carriage wheel disk brakes + ABS. 1st jet airliner to cross the Atlantic. 1st jet aircraft to do a world circumnavigation flights series. *Of course De Havilland had prior experience building many all metal construction airframe aircraft including thousands of jet powered fighter aircraft that were primarily of metal construction with pressurised cockpits & jet engines built by De-Havilland & we know the world's first all metal construction airframe airliner was built in England in the 1920s by Handley Page.* *_De Havilland did indeed always work to better than industry standards at the time, no evidence of negligence ever being produced in relation to the DH Comet._* . . .. .. .... ...... . .. . ccvcvxvvxiicxciiii
@jimtheedcguy4313
@jimtheedcguy4313 4 жыл бұрын
The brits sure did make the first commercial jet a beautiful one!
@WAL_DC-6B
@WAL_DC-6B 4 жыл бұрын
It was one of the airplanes that just looked right from all angles.
@jakobole
@jakobole 4 жыл бұрын
The only thing that looks old, is the non-swept tail
@sandervanderkammen9230
@sandervanderkammen9230 4 жыл бұрын
The empennage looks completely antiquated in the jet age.
@RB747domme
@RB747domme 4 жыл бұрын
Sander Van der Kammen well, it had a trapezoidal wing, so the main wing wasn't swept fully in the way we understand it today. But you have to remember, that this was in the very early days of high speed transport, and swept tails (both stabilisers, and fins) were the next innovation to allow jets to fly smoothly at all speeds without drag interrupting buffet flow, and is in part, due to the introduction of modern high speed wind tunnel analysis. This allowed engineers to start to understand air flow using computer analysis and coefficient studies. These early high-speed wind tunnel tests changed the shape of modern airliners throughout the world from the 1950s onwards. Computational fluid dynamics were the next big leap, which were just starting to make an impact in the 1980s and onwards, which allowed engineers for the first time to fully understand how an aircraft design will fly inside a computer model. The Comet design is just one evolution of many that has affected the design of aircraft since it's earliest days from the bi-plane to supersonic jets.
@sandervanderkammen9230
@sandervanderkammen9230 4 жыл бұрын
@@RB747domme Not really, the Germans pioneered high speed and supersonic wing structures in the early 1940s. The supersonic wind tunnel in use at the Luftfahrforschungsanstalt high speed research facilities in Braunschweig Germany could test large scale designs up to Mach 1.2 and smaller scale prototypes at 1.5 Mach.
@brianarbenz7206
@brianarbenz7206 5 жыл бұрын
Amazing to see the evolution of airliners into the jets we know today. Love this!
@doktorbimmer
@doktorbimmer 5 жыл бұрын
*Sadly the Comet represents an evolutionary dead-end that should have never existed... it was the greatest engineering failure in aviation history and it destroyed the de Havilland company.*
@PenzancePete
@PenzancePete 4 жыл бұрын
@@doktorbimmer Rather like the Boeing 737 max is destroying Boeing. Good job that they have the US government to bail them out.
@sandervanderkammen9230
@sandervanderkammen9230 2 жыл бұрын
The De Havilland went bankrupt and Comet was an evolutionary dead end.. its remembered by engineers today as an example of how not to build an airliner.
@petemaly8950
@petemaly8950 Ай бұрын
​@@sandervanderkammen9230 ​​​@sandervanderkammen9230 Kharzeestan Krappenz DiktorBummer Jurkzxoffenz etc and co - they should all note good with much awestruckness & extreme wonderment. *UPDATE MORE BREAKING NEWS ETC* De Havilland (Of England) Comets were not grounded after 1970 due to structural problems. *_It's interesting that some of the aircraft on the list should really have been noticeably safer than the Comet due to being a similar type but of much later design & manufacture but they definately were not safer._* How things were back then - *_Accident losses - % of aircraft built._* DeHavilland Comet 4 UK 14% DeHavilland Comet all mks 17% Vickers VC10 UK 5% *_The DH Comet had better safety than or similar safety to many other commercial passenger aircraft of a similar era_* Douglas DC-1 99% Douglas DC-2 47% Douglas DC-3 30% Douglas DC-4 26% Boeing s300 72% Boeing 307 70% Boeing 247 48% Boeing 707 20% Lockheed L-049/149 Constellation 30% Lockheed Electra Turboprop 29% Fairchild FH-227 30% McDonnell Douglas DC-8 14% Sud Aviation Caravelle 15% Canadair CL-44 Turboprop 46% Convair CV-580 Turboprop 22% A comparison of more recent aircraft. Accident losses comparison examples. 1970s - 1980s % of total Aircraft built Similar aircraft type, date / decade, useage, size. Biz Jets BAe-125-800 1.7 % Beechcraft Beechjet 400 2.2 % Cessna 550 Citation II 7.1 % Learjet 35 / 36 12 % Beechcraft 1900 6% Dassault Falcon 10 11.5% Aérospatiale SN.601 22.5% Medium size jets / Turboprops. BAe-146 5.1% Fokker 100 6% McDonnell Douglas DC-9-30 9.5% Fairchild FH-227 30% McDonnell Douglas DC-8 14% Canadair CL-44 Turboprop 46% Convair CV-580 Turboprop 22% Beechcraft, Fokker, McDonnell Douglass, Learjet, Fairchild, Aerospatiale, Canadair, Convair companies defunct. All Comets, including some Comet 1s, had full civilian use certification at some point after 1954, civilian use certification only being withdrawn after commercial flying stopped. Examples were flying until 1997 - one example did a signals research global circumnavigation flight series in 1993 via Australia virtually without a rest travelling 28000 miles, only had an ice warning indicator issue during the flights. *The DH Comet - World Firsts.* 1st gas turbine jet powered airliner. 1st high altitude 8psi pressurised full fuselage length passenger cabin airliner, not a trivial feature as structure strength required for pressurisation considerably exceeded strength required for normal flying stress. Nobody else had done anything similar before the Comet. The b-47 used 2 relatively small, heavily built pressurised modules (the aircraft where 6 had their wings fold up in 2 months while flying & some had their wings fall off while parked). The 1937 Boeing piston engined airliner pressurised passenger cabin was pressurised to 2 psi only - in fact that could easily be done as the normal unpressurized fuselage cabin structure strength for flying stresses only was all that was needed to be adequate so no significant weight increase issues needed addressing. 1st all hydraulically powered flying surface controls & actuators airliner with under carriage wheel disk brakes + ABS. 1st jet airliner to cross the Atlantic. 1st jet aircraft to do a world circumnavigation flights series. *Of course De Havilland had prior experience building many all metal construction airframe aircraft including thousands of jet powered fighter aircraft that were primarily of metal construction with pressurised cockpits & jet engines built by De-Havilland & we know the world's first all metal construction airframe airliner was built in England in the 1920s by Handley Page.* *_De Havilland did indeed always work to better than industry standards at the time, used up to date knowledge for the design & no evidence of negligence or criminal negligence was ever produced in relation to the DH Comet._* The course of De Havilland & the general UK aerospace industry sector was not affected even slightly by the DH Comet. *_Other interesting World firsts_* _World's first turboprop aircraft._ *Vickers Viscount Turboprop Airliner 1947.* *A 1945 Gloster Meteor Aircraft with Turboprop Gas Turbine Engine.* They might like to answer these questions. *Which airline has just ordered* *60 RR England Trent XWB Engines* *& What aircraft are the engines for?* _Bonus question for 10 points._ Which country has the *World's Highest Combined Per Capita* *Nuclear + Defence + Aerospace Sector Activity?* 👍 & 🙂 & of course 😎 indeed. Cheers. _Toodle_ -PIP- *Old* *_Chap._* . .... . ... . ... .. . .. .... ... .... Ivcxivcxivcxcxiivxvi vcxiccxxcc
@petemaly8950
@petemaly8950 Ай бұрын
​@@sandervanderkammen9230 ​​​@sandervanderkammen9230 Kharzeestan Krappenz DiktorBummer Jurkzxoffenz etc and co - they should all note good with much awestruckness & extreme wonderment. *UPDATE MORE BREAKING NEWS ETC* De Havilland (Of England) Comets were not grounded after 1970 due to structural problems. *_It's interesting that some of the aircraft on the list should really have been noticeably safer than the Comet due to being a similar type but of much later design & manufacture but they definately were not safer._* How things were back then - *_Accident losses - % of aircraft built._* DeHavilland Comet 4 UK 14% DeHavilland Comet all mks 17% Vickers VC10 UK 5% *_The DH Comet had better safety than or similar safety to many other commercial passenger aircraft of a similar era_* Douglas DC-1 99% Douglas DC-2 47% Douglas DC-3 30% Douglas DC-4 26% Boeing s300 72% Boeing 307 70% Boeing 247 48% Boeing 707 20% Lockheed L-049/149 Constellation 30% Lockheed Electra Turboprop 29% Fairchild FH-227 30% McDonnell Douglas DC-8 14% Sud Aviation Caravelle 15% Canadair CL-44 Turboprop 46% Convair CV-580 Turboprop 22% A comparison of more recent aircraft. Accident losses comparison examples. 1970s - 1980s % of total Aircraft built Similar aircraft type, date / decade, useage, size. Biz Jets BAe-125-800 1.7 % Beechcraft Beechjet 400 2.2 % Cessna 550 Citation II 7.1 % Learjet 35 / 36 12 % Beechcraft 1900 6% Dassault Falcon 10 11.5% Aérospatiale SN.601 22.5% Medium size jets / Turboprops. BAe-146 5.1% Fokker 100 6% McDonnell Douglas DC-9-30 9.5% Fairchild FH-227 30% McDonnell Douglas DC-8 14% Canadair CL-44 Turboprop 46% Convair CV-580 Turboprop 22% Beechcraft, Fokker, McDonnell Douglass, Learjet, Fairchild, Aerospatiale, Canadair, Convair companies defunct. All Comets, including some Comet 1s, had full civilian use certification at some point after 1954, civilian use certification only being withdrawn after commercial flying stopped. Examples were flying until 1997 - one example did a signals research global circumnavigation flight series in 1993 via Australia virtually without a rest travelling 28000 miles, only had an ice warning indicator issue during the flights. *The DH Comet - World Firsts.* 1st gas turbine jet powered airliner. 1st high altitude 8psi pressurised full fuselage length passenger cabin airliner, not a trivial feature as structure strength required for pressurisation considerably exceeded strength required for normal flying stress. Nobody else had done anything similar before the Comet. The b-47 used 2 relatively small, heavily built pressurised modules (the aircraft where 6 had their wings fold up in 2 months while flying & some had their wings fall off while parked). The 1937 Boeing piston engined airliner pressurised passenger cabin was pressurised to 2 psi only - in fact that could easily be done as the normal unpressurized fuselage cabin structure strength for flying stresses only was all that was needed to be adequate so no significant weight increase issues needed addressing. 1st all hydraulically powered flying surface controls & actuators airliner with under carriage wheel disk brakes + ABS. 1st jet airliner to cross the Atlantic. 1st jet aircraft to do a world circumnavigation flights series. *Of course De Havilland had prior experience building many all metal construction airframe aircraft including thousands of jet powered fighter aircraft that were primarily of metal construction with pressurised cockpits & jet engines built by De-Havilland & we know the world's first all metal construction airframe airliner was built in England in the 1920s by Handley Page.* *_De Havilland did indeed always work to better than industry standards at the time, used up to date knowledge for the design & no evidence of negligence or criminal negligence was ever produced in relation to the DH Comet._* The course of De Havilland & the general UK aerospace industry sector was not affected even slightly by the DH Comet. *_Other interesting World firsts_* _World's first turboprop aircraft._ *Vickers Viscount Turboprop Airliner 1947.* *A 1945 Gloster Meteor Aircraft with Turboprop Gas Turbine Engine.* They might like to answer these questions. *Which airline has just ordered* *60 RR England Trent XWB Engines* *& What aircraft are the engines for?* _Bonus question for 10 points._ Which country has the *World's Highest Combined Per Capita* *Nuclear + Defence + Aerospace Sector Activity?* 👍 & 🙂 & of course 😎 indeed. Cheers. _Toodle_ -PIP- *Old* *_Chap._* . .... . ... . ... .. ... .. .. ... .... Ivcxivcxivcxcx. iivxvivcxicc. xxcc
@robinj.9329
@robinj.9329 5 жыл бұрын
Remember, Comet 1 first flew in 1949! So for a 40's design this was truely incredible!
@doktorbimmer
@doktorbimmer 5 жыл бұрын
*But the Comet 1 was an embarrassing failure that killed hundreds of innocent people and destroyed De Havilland... it was truly horrific!*
@dasher3532
@dasher3532 5 жыл бұрын
@@doktorbimmer OKAY WE GET IT YOU HATE THE COMET AND THINK IT'S A FUCKING MISTAKE
@sundar999
@sundar999 4 жыл бұрын
@@doktorbimmer Have you heard about net trolls?
@petemaly8950
@petemaly8950 Ай бұрын
​@@doktorbimmer ​​​@sandervanderkammen9230 Kharzeestan Krappenz DiktorBummer Jurkzxoffenz etc and co - they should all note good with much awestruckness & extreme wonderment. *UPDATE MORE BREAKING NEWS ETC* De Havilland (Of England) Comets were not grounded after 1970 due to structural problems. *_It's interesting that some of the aircraft on the list should really have been noticeably safer than the Comet due to being a similar type but of much later design & manufacture but they definately were not safer._* How things were back then - *_Accident losses - % of aircraft built._* DeHavilland Comet 4 UK 14% DeHavilland Comet all mks 17% Vickers VC10 UK 5% *_The DH Comet had better safety than or similar safety to many other commercial passenger aircraft of a similar era_* Douglas DC-1 99% Douglas DC-2 47% Douglas DC-3 30% Douglas DC-4 26% Boeing s300 72% Boeing 307 70% Boeing 247 48% Boeing 707 20% Lockheed L-049/149 Constellation 30% Lockheed Electra Turboprop 29% Fairchild FH-227 30% McDonnell Douglas DC-8 14% Sud Aviation Caravelle 15% Canadair CL-44 Turboprop 46% Convair CV-580 Turboprop 22% A comparison of more recent aircraft. Accident losses comparison examples. 1970s - 1980s % of total Aircraft built Similar aircraft type, date / decade, useage, size. Biz Jets BAe-125-800 1.7 % Beechcraft Beechjet 400 2.2 % Cessna 550 Citation II 7.1 % Learjet 35 / 36 12 % Beechcraft 1900 6% Dassault Falcon 10 11.5% Aérospatiale SN.601 22.5% Medium size jets / Turboprops. BAe-146 5.1% Fokker 100 6% McDonnell Douglas DC-9-30 9.5% Fairchild FH-227 30% McDonnell Douglas DC-8 14% Canadair CL-44 Turboprop 46% Convair CV-580 Turboprop 22% Beechcraft, Fokker, McDonnell Douglass, Learjet, Fairchild, Aerospatiale, Canadair, Convair companies defunct. All Comets, including some Comet 1s, had full civilian use certification at some point after 1954, civilian use certification only being withdrawn after commercial flying stopped. Examples were flying until 1997 - one example did a signals research global circumnavigation flight series in 1993 via Australia virtually without a rest travelling 28000 miles, only had an ice warning indicator issue during the flights. *The DH Comet - World Firsts.* 1st gas turbine jet powered airliner. 1st high altitude 8psi pressurised full fuselage length passenger cabin airliner, not a trivial feature as structure strength required for pressurisation considerably exceeded strength required for normal flying stress. Nobody else had done anything similar before the Comet. The b-47 used 2 relatively small, heavily built pressurised modules (the aircraft where 6 had their wings fold up in 2 months while flying & some had their wings fall off while parked). The 1937 Boeing piston engined airliner pressurised passenger cabin was pressurised to 2 psi only - in fact that could easily be done as the normal unpressurized fuselage cabin structure strength for flying stresses only was all that was needed to be adequate so no significant weight increase issues needed addressing. 1st all hydraulically powered flying surface controls & actuators airliner with under carriage wheel disk brakes + ABS. 1st jet airliner to cross the Atlantic. 1st jet aircraft to do a world circumnavigation flights series. *Of course De Havilland had prior experience building many all metal construction airframe aircraft including thousands of jet powered fighter aircraft that were primarily of metal construction with pressurised cockpits & jet engines built by De-Havilland & we know the world's first all metal construction airframe airliner was built in England in the 1920s by Handley Page.* *_De Havilland did indeed always work to better than industry standards at the time, used up to date knowledge for the design & no evidence of negligence or criminal negligence was ever produced in relation to the DH Comet._* The course of De Havilland & the general UK aerospace industry sector was not affected even slightly by the DH Comet. *_Other interesting World firsts_* _World's first turboprop aircraft._ *Vickers Viscount Turboprop Airliner 1947.* *A 1945 Gloster Meteor Aircraft with Turboprop Gas Turbine Engine.* They might like to answer these questions. *Which airline has just ordered* *60 RR England Trent XWB Engines* *& What aircraft are the engines for?* _Bonus question for 10 points._ Which country has the *World's Highest Combined Per Capita* *Nuclear + Defence + Aerospace Sector Activity?* 👍 & 🙂 & of course 😎 indeed. Cheers. _Toodle_ -PIP- *Old* *_Chap._* . .... . ... . ... .. ... .... ... .... Ivcxivcxivc. xcxiivxviv cxiccxxcc
@royalanania3306
@royalanania3306 3 жыл бұрын
Very beautiful Jetliner.
@KC-fb8ql
@KC-fb8ql 4 жыл бұрын
Excellent film! I hope to one day stand next to one of these beauties.
@mcdonnell220
@mcdonnell220 7 жыл бұрын
Another great one, thank you, Dan!
@AviationNut
@AviationNut 7 жыл бұрын
Classic Airliners & Vintage Pop Culture I love your classic video's , i think i watched all of them within 2 weeks. I even took a day of work just to watch you video's, almost needed rehab for my classic plane video addiction. lol
@mcdonnell220
@mcdonnell220 7 жыл бұрын
Thank you Avnut, very kind of you to say.
@Johnnywhamo
@Johnnywhamo 5 жыл бұрын
The engines in the frame of the wing for me is the absolute beauty of this plane
@doktorbimmer
@doktorbimmer 5 жыл бұрын
*It is also what made the noise level inside the Comet's cabin intolerable.. and prevented the airframe from being updated to superior high bypass engines.*
@awuma
@awuma 4 жыл бұрын
@@doktorbimmer Yet they did modify it on the Nimrod to carry RR Speys (though rather low bybass ratio).
@user-rc1ke1ef3t
@user-rc1ke1ef3t 2 жыл бұрын
@@doktorbimmer Wrong actually, the Nimrod MRA4 had Rolls Royce BR700 turbofans - a very modern high bypass engine. Also, when the Comet was first devised, it was silent in comparison to the noisy vibrating piston powered airliners of the time. There were no high bypass engines in the early jet age.
@sandervanderkammen9230
@sandervanderkammen9230 Жыл бұрын
@@awuma The Nimrod is a different aircraft than the Comet, designed by a different company 2 decades later... and only for military use. Yes, the Spey is a low bypass engine and although significantly larger than the RR Avon, both are smaller in diameter than the Comet 1 with de Havilland Ghost centrifugal turbojet engines. The problem is the modern high pass engines like the CFM56 that powers the RAF Boeing E6 and P-8s are twice the diameter of the Avon and the Spey.
@sandervanderkammen9230
@sandervanderkammen9230 Жыл бұрын
@@user-rc1ke1ef3t The MRA4 was intended to use the civilian version of the BMW F130 jet fighter engine, after the merger of BMW-RR the F130 was developed into the 710. Unfortunately the MRA4 is a moot point as the aircraft developed a fatal design flaw as a result of this engine modification and was grounded, the entire wing had to be completely redesigned at incredible expense, the new wing did not perform as well as promised, in addition to other unexpected development costs the MRA4 was canceled in favor of the Boeing P-8 Poseidon which was upgraded to newer more efficient high bypass CFM56 turbofans with only very minor modifications from its original Boeing 737 configuration and shares interchangeable parts with the RAF Boeing E6 Mercury aircraft which are reengined version of the 707 family. Cheers mate!
@robertohorvilleur1240
@robertohorvilleur1240 4 жыл бұрын
Truly an amazing piece of machinery
@sandervanderkammen9230
@sandervanderkammen9230 4 жыл бұрын
Without any doubt the worst engineering failure in aviation history... 1 out every 4 Comets built crashed or were destroyed in accidents... a truly shameful chapter in British aviation history.
@robertohorvilleur1240
@robertohorvilleur1240 4 жыл бұрын
Sander Van der Kammen well..... you have a good point
@markrichards636
@markrichards636 5 жыл бұрын
Wow, the worlds 1st commercial jet liner, great looking aircraft.
@sandervanderkammen9230
@sandervanderkammen9230 4 жыл бұрын
First failed commercial jet, the Boeing 707 was the first airworthy jet liner to enter service.
@petemaly8950
@petemaly8950 5 ай бұрын
​​@@sandervanderkammen9230 *Fryed Ryce Muncherz shud note.* *_What has their comment got to do with the original comment which stated quite factually that the Comet was the world's first commercial high altitude pressurised passenger cabin all metal construction airframe jet powered airliner?_* _A Comet was also the first jet aircraft in the world to cross the Atlantic & the 1st jet aircraft in the world to complete a global circumnavigation flight series._ *Of course the jet engines used were manufactured in the UK & were the Whittle type internal combustion turbine engine using centrifugal compressor & reverse flow combustors as first in the world demonstrated by Whittle in 1937.* *_That style of internal combustion turbine engine is still produced & used to the present day of course._* *We sincerely hope this helps them with their understanding of reality?😂*
@sandervanderkammen9230
@sandervanderkammen9230 5 ай бұрын
@petemaly8950 *Comet 1 is the biggest engineering failure in commercial jet aviation history...* *It's airworthiness certification was permanently revoked.*
@sandervanderkammen9230
@sandervanderkammen9230 5 ай бұрын
@petemaly8950 *The Jet engine was invented in Germany by Hans von Ohain and Max Hahnn.*
@petemaly8950
@petemaly8950 5 ай бұрын
​​@@sandervanderkammen9230 Chiney Fryed Ryce Muncherz shud remember. *Of course The gas turbine was invented in Engla🇬🇧nd in 1790.* _Parsons of England & Ireland without doubt was the first to demonstrate the axial multi stage bladed turbine & compressor & begin investigating the possibillity of the currently ubiquitous axial internal combustion turbine / gas turbine / turbojet engine while also using the technology for steam driven power generation & ship propulsion before 1900. Then also licensing the technology most kindly to many companies around the world._ *_& without doubt it was Whittle of England that first described, first patented & subsequently demonstrated the world's first pure gas turbine aircraft engine._* _Of course there were people who attempted to copy Whittle & copy other trail blazers with obtained info & of course they weren't particularly successful._ *We hope the truth is acceptable to them & that they take note with due awestruck diligence & great reverence & remember their humble place in the great scheme of things? 😂*
@Sovereign_Citizen_LEO
@Sovereign_Citizen_LEO 7 жыл бұрын
One thing I notice immediately about this plane, is the shape of the cockpit/fore-end of it. It seems that modern Airbus and Boeing designs (and other manufacturers), are very similar; Meaning that De Havilland designers/engineers were ahead of their time. I think that engine through wing design (even though not really used today), is still a viable concept and will be used in the future. Engines have actually fallen off aircraft on many occasions, causing a host of fatalities. Engines integrated into the wing, directly connected to the aircraft body, are far less likely to do so.
@no1ded
@no1ded 5 жыл бұрын
Engines do not fall off aircraft on many occasions and cause, "...a host of fatalities." Engines integrated into the wing, upon failure, can cause fire or structural problems.
@doktorbimmer
@doktorbimmer 5 жыл бұрын
*The choice De Havilland made to place the engines inside the wing roots demonstrates just how far behind they were in jet aircraft design...the failure of the Comet also caused De Havilland to go out of business.*
@azmike3572
@azmike3572 Жыл бұрын
But for maintenance and repair, engines in the wings were a lot more labor-intensive.
@johnfalstaff2270
@johnfalstaff2270 5 жыл бұрын
The date of this video is 1990. When narrator (in video) was saying that some Comets are still in service today that meant none of them is now. There are no any first Comets or their second and third revisions on sky anymore. It is history…
@Mortimer_Duke
@Mortimer_Duke 6 жыл бұрын
That ORD Comet was a fixture of my youth. It belongs there still.
@philderail1808
@philderail1808 5 жыл бұрын
Merci d’avoir mis en ligne ce document ! Pour information, à découvrir sur la chaîne KZfaq : « PHIL DE RAIL » la vidéo : « La Caravelle figée ». Et si l’avion Caravelle m’était conté…
@dpohunter
@dpohunter 7 жыл бұрын
So sad that the O'Hare Comet was ultimately scrapped despite the dedicated effort to save it. I remember reading that it was the Airport Authority that eventually ran out of patience and scuttled the restoration.
@mcwolfus2
@mcwolfus2 8 жыл бұрын
Thanks for posting. Very interesting,
@leezinke4351
@leezinke4351 4 жыл бұрын
Wow the comet looks very futuristic! 😮
@MyNico63
@MyNico63 4 жыл бұрын
Nice! I flew a comet with DanAir from London ( Gatwick I believe) to Venice. I remember having to stoop when entering the aircraft as the door was not like later planes. This circa 1976 on a school trip!
@WAL_DC-6B
@WAL_DC-6B 4 жыл бұрын
Thanks for sharing your entryway experience boarding a De Havilland Comet back in the 1970s!
@crobulari2328
@crobulari2328 8 жыл бұрын
A lightness designer used a skin of 0.73mm thickness. 1.2mm was the established thickness of the skin by test and convention at that time. The windows needed a larger radius at each corner to reduce stresses there. The operation of fixing the rivets without drilling the holes first caused cracks in the skin to migrate in certain areas of stress. An aeronautical designer told me all this many years ago. He said that the thin skin was used to keep the aircraft light for the DH Ghost Engines yet more powerful engines were available at the time. A great disappointment !.
@Steve-yt5zm
@Steve-yt5zm 7 жыл бұрын
Also the engine location was at play too. encased in the wing structure they added to vibration right beside the fuselage. I wouldn't underestimate the importance of mounting engines on pods. I believe had the Comet had this simple - though less elegant solution - it may have escaped the grounding and some of the tragedies that led to it's early retirement. It still is, for me the most beautiful Jet airliner ever made. That stunning nose, wonderful cockpit and beautifully integrated engine cluster has never been equalled...imo
@dooley1230
@dooley1230 5 жыл бұрын
The original design called for using only adhesive, but it deemed too expensive.
@johnjephcote7636
@johnjephcote7636 4 жыл бұрын
@soaringtractor That's correct. Redux bonding was used in the Comet but sadly it was too difficult to use in the windows. DH was used to bonding wood to wood in the Mosquito and then wood to metal in the Hornet. RAF Transport Command used the short unpressurised airframes but the stretched Comet 4C became a beautiful and successful airliner. The later BEA livery was also stunning.
@johnjephcote7636
@johnjephcote7636 4 жыл бұрын
@Ben Daulton Glue-Redux bonding.
@drstevenrey
@drstevenrey 2 жыл бұрын
The Comet looked so good. The mishaps that ensued would have happened to anybody back in the day. Being first is hard and frustrating. Then there was Boeing, seeing what went wrong and overtook DH just like that. Just look at it. Second only to the Constellation as best looking aircraft ever built.
@WAL_DC-6B
@WAL_DC-6B 2 жыл бұрын
Boeing had the "Dutch roll" issues with the early 707s leading to a fatal crash or two. This led to the increased size tail on the jetliner along with the ventral fin on the underside of the tail. I agree with some who've called the Vickers VC-10 a handsome airliner.
@sandervanderkammen9230
@sandervanderkammen9230 2 жыл бұрын
@@WAL_DC-6B The RAF still flying the Boeing 707s... the Comet and VC-10 went to the scrap yard long ago
@petemaly8950
@petemaly8950 Ай бұрын
​@@sandervanderkammen9230 ​​​@sandervanderkammen9230 Kharzeestan Krappenz DiktorBummer Jurkzxoffenz etc and co - they should all note good with much awestruckness & extreme wonderment. *UPDATE MORE BREAKING NEWS ETC* The RAF don't operate 707s. Average life of an airline onky 707 was 22 years - 707s are garbage. De Havilland (Of England) Comets were not grounded after 1970 due to structural problems. *_It's interesting that some of the aircraft on the list should really have been noticeably safer than the Comet due to being a similar type but of much later design & manufacture but they definately were not safer._* How things were back then - *_Accident losses - % of aircraft built._* DeHavilland Comet 4 UK 14% DeHavilland Comet all mks 17% Vickers VC10 UK 5% *_The DH Comet had better safety than or similar safety to many other commercial passenger aircraft of a similar era_* Douglas DC-1 99% Douglas DC-2 47% Douglas DC-3 30% Douglas DC-4 26% Boeing s300 72% Boeing 307 70% Boeing 247 48% Boeing 707 20% Lockheed L-049/149 Constellation 30% Lockheed Electra Turboprop 29% Fairchild FH-227 30% McDonnell Douglas DC-8 14% Sud Aviation Caravelle 15% Canadair CL-44 Turboprop 46% Convair CV-580 Turboprop 22% A comparison of more recent aircraft. Accident losses comparison examples. 1970s - 1980s % of total Aircraft built Similar aircraft type, date / decade, useage, size. Biz Jets BAe-125-800 1.7 % Beechcraft Beechjet 400 2.2 % Cessna 550 Citation II 7.1 % Learjet 35 / 36 12 % Beechcraft 1900 6% Dassault Falcon 10 11.5% Aérospatiale SN.601 22.5% Medium size jets / Turboprops. BAe-146 5.1% Fokker 100 6% McDonnell Douglas DC-9-30 9.5% Fairchild FH-227 30% McDonnell Douglas DC-8 14% Canadair CL-44 Turboprop 46% Convair CV-580 Turboprop 22% Beechcraft, Fokker, McDonnell Douglass, Learjet, Fairchild, Aerospatiale, Canadair, Convair companies defunct. All Comets, including some Comet 1s, had full civilian use certification at some point after 1954, civilian use certification only being withdrawn after commercial flying stopped. Examples were flying until 1997 - one example did a signals research global circumnavigation flight series in 1993 via Australia virtually without a rest travelling 28000 miles, only had an ice warning indicator issue during the flights. *The DH Comet - World Firsts.* 1st gas turbine jet powered airliner. 1st high altitude 8psi pressurised full fuselage length passenger cabin airliner, not a trivial feature as structure strength required for pressurisation considerably exceeded strength required for normal flying stress. Nobody else had done anything similar before the Comet. The b-47 used 2 relatively small, heavily built pressurised modules (the aircraft where 6 had their wings fold up in 2 months while flying & some had their wings fall off while parked). The 1937 Boeing piston engined airliner pressurised passenger cabin was pressurised to 2 psi only - in fact that could easily be done as the normal unpressurized fuselage cabin structure strength for flying stresses only was all that was needed to be adequate so no significant weight increase issues needed addressing. 1st all hydraulically powered flying surface controls & actuators airliner with under carriage wheel disk brakes + ABS. 1st jet airliner to cross the Atlantic. 1st jet aircraft to do a world circumnavigation flights series. *Of course De Havilland had prior experience building many all metal construction airframe aircraft including thousands of jet powered fighter aircraft that were primarily of metal construction with pressurised cockpits & jet engines built by De-Havilland & we know the world's first all metal construction airframe airliner was built in England in the 1920s by Handley Page.* *_De Havilland did indeed always work to better than industry standards at the time, used up to date knowledge for the design & no evidence of negligence or criminal negligence was ever produced in relation to the DH Comet._* The course of De Havilland & the general UK aerospace industry sector was not affected even slightly by the DH Comet. *_Other interesting World firsts_* _World's first turboprop aircraft._ *Vickers Viscount Turboprop Airliner 1947.* *A 1945 Gloster Meteor Aircraft with Turboprop Gas Turbine Engine.* They might like to answer these questions. *Which airline has just ordered* *60 RR England Trent XWB Engines* *& What aircraft are the engines for?* _Bonus question for 10 points._ Which country has the *World's Highest Combined Per Capita* *Nuclear + Defence + Aerospace Sector Activity?* 👍 & 🙂 & of course 😎 indeed. Cheers. _Toodle_ -PIP- *Old* *_Chap._* . .... . ... . ... .. ... .... ... .... Ivcxivcxivcxcxi ivxvivcxiccxxcc
@MrShobar
@MrShobar 7 жыл бұрын
The Comet 4C previously owned by the Everett Community College in Washington State is now owned by the Museum of Flight in Seattle Washington, where it has been substantially restored. It had previously been used as a fire trainer by the local airport fire department.
@johnellis2347
@johnellis2347 Жыл бұрын
For those of you who like to see the world's first jet airliner one is just a few miles north of Seattle on display at Boeing plant in Everett wash.
@georgebarnes8163
@georgebarnes8163 9 ай бұрын
The worlds first jet airliner was the Avro Nene Lancastrian which flew its first commercial flight in Nov 1946 between London and Paris.
@Code3forever
@Code3forever 5 жыл бұрын
What can you say about the Comet? It was a pioneer in the world of commercial jet transport. There were no computers then to aid in the design, but only the intelligence of the engineers who worked on her. This was a time of learning, and sometimes learning the hard way, as far as design flaws and other things which did not quite work out right. The UK paid the price as far as lives lost go, but it saved many others world wide. Once the flaws were corrected, it became a safe and durable aircraft. The US and Soviet Union studied the Comet and came up with amazing jets themselves. The Boeing 707, Douglas DC-8 and Tupolev 104-124. Tupolev copied the inside the wings concept of engine mounting with just two turbojets. These jets were the workhorse of the early passenger jet age. The flaws built into the Comet 1 were honest mistakes, never the less, still deadly. What we see today in pushing out a new old jet model was monetary greed above anything else in my opinion. The UK has built some remarkable jets in the younger jet age... The Trident, the VC-10, the BAe-146, and the BAC-1-11 and all were good aircraft. Competition in the world market was hard and Boeing, Douglas, and to some degree Lockheed, cut into their sales immensely. This was a good and informative video and I believe after the fatal flaws were dealt with, the subsequent Comet 4C was a very respectable aircraft.
@WAL_DC-6B
@WAL_DC-6B 5 жыл бұрын
Well said commentary!
@doktorbimmer
@doktorbimmer 5 жыл бұрын
*What can you say about the **_Comet Disaster?_** Well, it was the worst engineering failure in aviation history. A tragedy that could have been prevented if de Havilland was not more than a decade behind in cabin pressurization and large, all-metal aircraft design and construction... bad management and incompetent engineers put profits before the safety of their passengers. If the same thing had happened today no doubt criminal charges would have been brought against the de Havilland personnel responsible.*
@WAL_DC-6B
@WAL_DC-6B 5 жыл бұрын
doktorbimmer I feel an aircraft that beats the Comet in terms of "worst engineering failure in aviation history" is the Boeing B-29 Superfortress. Look at all the ones that were lost during World War II not from enemy fire, but from engine failures and subsequent engine fires. Don't overlook the Lockheed L-188 Electra of the late 1950's which shed it's left or right main wings in flight leading to two crashes killing all on board Those Electra accidents were attributed to poor engine nacelle and wing designs. To be fair to all these companies, Lockheed, Boeing and De Havilland, the faults of these aircraft mentioned here were a result of aircraft designs that were going into areas of aviation structure and power that had not been tested to any great extent in the past. The Comet, which first flew on 27 July, 1949 "suffered from problems associated with the then little-known phenomena of fatigue failures of the fuselage"...…..a quote from the book "Boeing 707 Group, A History."
@doktorbimmer
@doktorbimmer 5 жыл бұрын
*You have to see the irony in comparing the most successful large, high altitude, multi-engine bomber of WW2 with the **_Comet Disaster..._** The Boeing B-29 was a mass produced, all-metal, riveted construction aircraft that featured cabin pressurization at a time when de Havilland was building planes out of wood and fabric! Boeing had more experience building large, all-metal structures and cabin pressurization than any company in the world.... Please tell me how de Havilland could have been on par with Boeing when it had little to no experience with metal fatigue in metal fuselage structures when they had previously only built large planes out of wood*
@doktorbimmer
@doktorbimmer 5 жыл бұрын
_"The Comet, which first flew on 27 July, 1949 "suffered from problems associated with the then little-known phenomena of fatigue failures of the fuselage""_ *Certainly the concept of **_metal fatigue_** in fuselage structures would have been very unfamiliar if not completely unknown to a company famous for building aircraft out of wood and fabric!*
@douglasrodrigues9329
@douglasrodrigues9329 4 жыл бұрын
Tex didn't do a barrel roll: he did an ailerons roll which puts no stress on the airframe. For you non-pilots there are three basic types of rolls: slow roll, aileron roll, and barrel roll. Look up how to do these rolls to understand why Tex Johnson was safe doing his roll.
@erichjeske
@erichjeske 4 жыл бұрын
Die Comet war das erste Verkehrsflugzeug mit Düsenantrieb. Es war ein Quatensprung in der Flugzeuggeschichte. Am Düsseldorfer Flughafen habe ich 1966 den für mich ersten Start dieser Maschine gesehen. Eindrucksvoll! Aber dieses Flugzeug hatte eine Schwäche in Ihrer Struktur und so kam es vor, dass sie in Flughöhe auseinander gebrochen ist. Darauf hin wurde die wohl aufwendigste Unter- suchung in der Flugzeuggeschichte durchgeführt um die Ursache aufzuklären. Über Monate hinweg wurde die Comet in ein mit Wasser geflutetes Becken gestellt um so einen Druck auf den Rumpf auszuüben. Letztendlich hat man den Fehler gefunden obwohl kaum noch Hoffnung dazu bestanden hatte.
@martinda7446
@martinda7446 4 жыл бұрын
Dan...Dan Air...I remember the Dan Air Comet 4s at Heathrow. They were the butt of many jokes at the time in the late 70s, Still my favourite aircraft.
@awuma
@awuma 4 жыл бұрын
I remember landing and taking off at Gatwick in '73/74, and there were lots of Dan Air Comets there. I think Dan Air was mainly a holiday charter airline and was based there. They owned at one time or another almost two thirds of the Comet 4's ever built.
@Ampex196
@Ampex196 7 жыл бұрын
The Comet 4 flew daily passenger services (with Dan Air) until 1981 with a good safety record. The Nimrod (still in military service) flies today. The wing design did not allow for the turbofan (bypass) engines that were to come. Striving to be 'first' will always be a risky business!
@GRHDA
@GRHDA 6 жыл бұрын
Sadly the Nimrod was scrapped a few years ago by the Tory/lib so called coalition. IMO an utter criminal act by filth politicians,
@sandervanderkammen9230
@sandervanderkammen9230 4 жыл бұрын
@@GRHDA The Nimrods were scrapped because they had reached the end of the airframes hours in service, they were no longer fit to continue in service without failures due to fatigue.
@EpicFishGamer
@EpicFishGamer 3 жыл бұрын
it really looks ahead of its time in my opinion
@kirstenschafer1719
@kirstenschafer1719 2 жыл бұрын
Thank you for the upload...without doubt, the de Havilland Comet was a masterpiece of engineering! But I also remember, there were some total failures in the 1950s because of premature material fatigue...dark days for the civil aviation....
@sandervanderkammen9230
@sandervanderkammen9230 2 жыл бұрын
The _Comet Disaster_ is without any doubt the worst engineering failure in aviation history... the Comet 1 is the only jet airliner in history to have its airworthiness certification permanently revoked! The first in a long and shameful line of engineering failures and financial disasters that eventually led to the demise of the entire British commercial aircraft industry.
@WilhelmKarsten
@WilhelmKarsten 11 ай бұрын
The Comet is without any doubt the most shameful and humiliating chapter in British aviation history, the result of incompetence, hubris and criminal negligence
@petemaly8950
@petemaly8950 Ай бұрын
​​​@sandervanderkammen9230 Kharzeestan Krappenz DiktorBummer Jurkzxoffenz etc and co - they should all note good with much awestruckness & extreme wonderment. *UPDATE MORE BREAKING NEWS ETC* De Havilland (Of England) Comets were not grounded after 1970 due to structural problems. *_It's interesting that some of the aircraft on the list should really have been noticeably safer than the Comet due to being a similar type but of much later design & manufacture but they definately were not safer._* How things were back then - *_Accident losses - % of aircraft built._* DeHavilland Comet 4 UK 14% DeHavilland Comet all mks 17% Vickers VC10 UK 5% *_The DH Comet had better safety than or similar safety to many other commercial passenger aircraft of a similar era_* Douglas DC-1 99% Douglas DC-2 47% Douglas DC-3 30% Douglas DC-4 26% Boeing s300 72% Boeing 307 70% Boeing 247 48% Boeing 707 20% Lockheed L-049/149 Constellation 30% Lockheed Electra Turboprop 29% Fairchild FH-227 30% McDonnell Douglas DC-8 14% Sud Aviation Caravelle 15% Canadair CL-44 Turboprop 46% Convair CV-580 Turboprop 22% A comparison of more recent aircraft. Accident losses comparison examples. 1970s - 1980s % of total Aircraft built Similar aircraft type, date / decade, useage, size. Biz Jets BAe-125-800 1.7 % Beechcraft Beechjet 400 2.2 % Cessna 550 Citation II 7.1 % Learjet 35 / 36 12 % Beechcraft 1900 6% Dassault Falcon 10 11.5% Aérospatiale SN.601 22.5% Medium size jets / Turboprops. BAe-146 5.1% Fokker 100 6% McDonnell Douglas DC-9-30 9.5% Fairchild FH-227 30% McDonnell Douglas DC-8 14% Canadair CL-44 Turboprop 46% Convair CV-580 Turboprop 22% Beechcraft, Fokker, McDonnell Douglass, Learjet, Fairchild, Aerospatiale, Canadair, Convair companies defunct. All Comets, including some Comet 1s, had full civilian use certification at some point after 1954, civilian use certification only being withdrawn after commercial flying stopped. Examples were flying until 1997 - one example did a signals research global circumnavigation flight series in 1993 via Australia virtually without a rest travelling 28000 miles, only had an ice warning indicator issue during the flights. *The DH Comet - World Firsts.* 1st gas turbine jet powered airliner. 1st high altitude 8psi pressurised full fuselage length passenger cabin airliner, not a trivial feature as structure strength required for pressurisation considerably exceeded strength required for normal flying stress. Nobody else had done anything similar before the Comet. The b-47 used 2 relatively small, heavily built pressurised modules (the aircraft where 6 had their wings fold up in 2 months while flying & some had their wings fall off while parked). The 1937 Boeing piston engined airliner pressurised passenger cabin was pressurised to 2 psi only - in fact that could easily be done as the normal unpressurized fuselage cabin structure strength for flying stresses only was all that was needed to be adequate so no significant weight increase issues needed addressing. 1st all hydraulically powered flying surface controls & actuators airliner with under carriage wheel disk brakes + ABS. 1st jet airliner to cross the Atlantic. 1st jet aircraft to do a world circumnavigation flights series. *Of course De Havilland had prior experience building many all metal construction airframe aircraft including thousands of jet powered fighter aircraft that were primarily of metal construction with pressurised cockpits & jet engines built by De-Havilland & we know the world's first all metal construction airframe airliner was built in England in the 1920s by Handley Page.* *_De Havilland did indeed always work to better than industry standards at the time, used up to date knowledge for the design & no evidence of negligence or criminal negligence was ever produced in relation to the DH Comet._* The course of De Havilland & the general UK aerospace industry sector was not affected even slightly by the DH Comet. *_Other interesting World firsts_* _World's first turboprop aircraft._ *Vickers Viscount Turboprop Airliner 1947.* *A 1945 Gloster Meteor Aircraft with Turboprop Gas Turbine Engine.* They might like to answer these questions. *Which airline has just ordered* *60 RR England Trent XWB Engines* *& What aircraft are the engines for?* _Bonus question for 10 points._ Which country has the *World's Highest Combined Per Capita* *Nuclear + Defence + Aerospace Sector Activity?* 👍 & 🙂 & of course 😎 indeed. Cheers. _Toodle_ -PIP- *Old* *_Chap._* . .... . ... . ... .. ... .... ... .... Ivcxivcxivcx cxiivxvivcxi
@brianbentley13
@brianbentley13 7 жыл бұрын
Thank you for a most interesting doco
@georgebarnes8163
@georgebarnes8163 9 ай бұрын
The First passenger jet as the Avro Nene Lancastrian which flew 3 years before the Comet did
@2000globetrotter
@2000globetrotter 6 жыл бұрын
Something missed out in this and other Comet documentaries is that the problems with the skin were principally due to the arrogance of Ron Bishop, DeHavilland's chief designer.. He insisted on using DeHavilland's own Ghost jet engine, despite it not being powerful enough for the job and when his engineers suggested that they use a more powerful Rolls Royce unit, he rejected it and told them to make the aircraft lighter instead. The result was a skin which was only 0.5mm thick and was fixed with rivets instead of bonding cement. The cracks in the skin all started at the rivets around the windows and spread from there.The rest is history. Later versions of the Comet were fitted with Rolls Royce Avon engines.
@AlexAnder-ut9es
@AlexAnder-ut9es 4 жыл бұрын
Always loved the comet with it's innovative and futuristic looking design and because it failed the world was left with the clunkier but functional Boeing & Douglas planes. Imagine how cute and beautiful a little 40 seater Comet must have been.
@sandervanderkammen9230
@sandervanderkammen9230 4 жыл бұрын
The Comet disaster remains the worst engineering failure in commercial aviation history.
@supersixjones8905
@supersixjones8905 4 жыл бұрын
Clunkier? Dont think so, the 707,727, and 747 were elegant AND reliable while able to generate profits.
@sandervanderkammen9230
@sandervanderkammen9230 4 жыл бұрын
It's ironic since the nose of the Comet is obviously copied from the Boeing 307...
@supersixjones8905
@supersixjones8905 4 жыл бұрын
@@sandervanderkammen9230 Not only that, but the 307 was the worlds first pressurized commercial aircraft.
@sandervanderkammen9230
@sandervanderkammen9230 4 жыл бұрын
@@supersixjones8905 And to think pressurized airliners were around for over a decade, how did DeHavilland get it so wrong?
@jamesmartin6546
@jamesmartin6546 3 жыл бұрын
In the early 60's, I don't remember which, working at the UAL terminal gates, a very British accent flight crew arrived there in one of the 3 Mexicana Airlines Comet 4C's as it was delivered to Mexicana folks at ORD. Jumping in a jeep a couple of us guys whipped up to the international terminal- a relatively small building on the north side of Butler Aviation- to look this new plane over. Blast I didn't have a camera along so I'm not sure which one it was, and I've spent the last few years wondering if the same one is at the Seattle Museum of Flight. Lesson learned ALWAYS take your camera along when you go to an airport. Guess the cell phone has taken care of that.
@WAL_DC-6B
@WAL_DC-6B 3 жыл бұрын
Wow! Thanks for sharing your encounter at O'Hare Field with one of the Mexicana De Havilland Comet IVs back when it was apparently being delivered. I can think of plenty of times myself of when I wished I had had a camera when seeing something that's now long gone.
@jamesmartin6546
@jamesmartin6546 3 жыл бұрын
@@WAL_DC-6B Working there with UAL stuff 'and others' going on was a bonus with the paycheck. Another time I did happen to have my 'not so hot' camera along on the day the first Caravelle N1001U arrived as delivered from France. It was the first one in our fleet of 20. I did get a shot of it in the distance on approach (but as described) the only picture was a double exposure @!^*$% it which is in my collection but have never taken the time -lots going on these days- to see if it can be fixed. Today I sure wish I'd had a pocket digital then as there were times that really neat shots could have been captured. ie: while driving a truck along the service road parallel to rwy 14R/32L which according to Google earth photos no longer exists nor does the hangar 5/5A I worked in. Anyway driving along I watched a Ford Tri-motor (that was fixed up as one of TWAs parent companies planes -apparently there for some local TWA shindig- taxiing along heading NW toward where TWAs hangar was. Lo and behold there landing on 32R was a TWA 727 with the nose still in the air crossing in my view. What a shot of those two "three holers in essence" at an angle. Camera in pocket NOPE! Just thought of the co-pilot in the 727 glancing out at the Ford thinking hope that guy has a camera - ha-ha... Those were the early neat days in the industry when so much went on and changed. Lucky to have been there as an observer. Should I assume WAL_DC-6B had something to do with those wonderful Douglas 6B's at Western Airlines which, we (UAL) had lots of when I started. Went to DSM to visit a buddy at Drake over a week end and returned on a 6B at night sitting in the front compartment watching and hearing those great R-2800 grind away, oh that sound. Other stories abound and I'd better get busy on that "book of life" - turned 81 last fall. Maybe we should trade emails to converse in a less public forum? Jim
@timhancock6626
@timhancock6626 Жыл бұрын
I think one of the pilots on that trip was John Cunningham.
@sandervanderkammen9230
@sandervanderkammen9230 Жыл бұрын
@@timhancock6626 Cunningham was the pilot of the very first Comet destroyed in a runway overrun excursion during the test program. He would go on to die penniless after a fruadulent investment scam he was involved in collapsed.
@petemaly8950
@petemaly8950 Ай бұрын
​​​​​​@@sandervanderkammen9230 Following John Cunningham's death in 2002, his service medals and flying memorabilia passed to the De Havilland Aircraft Company Trust. The medals were subsequently sold on 6 September 2012 for £384,000 to help raise funds for an education centre, museum, and flying scholarships for young people on behalf of the Bentley Priory Battle of Britain Trust Appeal. *In fact there was no investment scam, Mr Cunningham had invested in LLoyds insurance as a 'name' & took a financial hit as a result. It was not a fraudulent investment scam* *Mr Cunningham was not in fact penniless during his later years.* _*He also was not the pilot of the 1st Comet to be involved in a crash, the takeoff overrun accident.*_.
@Larry-ct5mg
@Larry-ct5mg 7 жыл бұрын
Being first can often put you last.
@Jenairaslebol27merde
@Jenairaslebol27merde 5 жыл бұрын
or as we say in germany: die zweite maus kriegt den käse. (the second mouse gets the cheese.)
@doktorbimmer
@doktorbimmer 5 жыл бұрын
*The Comet 1, Tu-110 and the Avro C-102 were among many failed attempts to build a safe, profitable and successful jet liner.... the first to achieve this was the Boeing 707.*
@Pullisto
@Pullisto 8 жыл бұрын
Sacrilege to think they stopped the funds and she was scrapped. Hats off to those who tried to give her a future. Even if she had been stored at the back of the museum or something until funds for restoration came along.
@montyzumazoom1337
@montyzumazoom1337 5 жыл бұрын
Beautiful sleek lines with internal engines, much better looking than the bolt on engines of todays aircraft. Tragic though this history was, it highlighted the effects of stress and metal fatigue for the benefit of future aircraft.
@doktorbimmer
@doktorbimmer 5 жыл бұрын
*Jet engines mounted in the wing roots is an example of **_"How not to design a jet airliner"_*
@doktorbimmer
@doktorbimmer 5 жыл бұрын
*Then why is it no longer used???*
@doktorbimmer
@doktorbimmer 5 жыл бұрын
*No, its not lad.*
@doktorbimmer
@doktorbimmer 5 жыл бұрын
*Name a commercial jet airliner in service that uses them*
@magnuskilian5310
@magnuskilian5310 4 жыл бұрын
It is often forgotten that the AVRO Jetliner, a Canadian designed and built four engined plane’s maiden flight was delayed by two weeks’ work on a Toronto airport runway to allow the Comet to be the first. TheJetliner did several commercial flights to New York and one of the two built became Howard Hughes’ personal plane for a while.
@WAL_DC-6B
@WAL_DC-6B 4 жыл бұрын
On January 10, 1951, the AVRO C102 Jetliner set a record time flying a triangular route from Toronto to Chicago to New York and back to Toronto flying at twice the speed, 520 mph and twice the altitude, 36,000 ft., in comparison to the piston powered airliners of the time. AVRO built only one Jetliner and it was scrapped sometime after its test days were over in 1956 (the nose section survives at Canada's National Aviation Museum at Ottawa, ON). Howard Hughes did get to fly on the Jetliner and he seriously considered it for his airline, TWA. In fact, National Airlines of Miami, FL signed a letter of intent to purchase four Jetliners. But, ultimately, the Jetliner was a victim of Canadian politics as the Canadian Government ordered AVRO to concentrate all work on their new jet fighter for the Royal Canadian Air Force, the CF-100 Canuck.
@malcolmcoupland1060
@malcolmcoupland1060 4 жыл бұрын
Canucks .... gotta love their firsts!
@VDPEFi
@VDPEFi 3 жыл бұрын
This is extremely good, an American made documentary not claiming they did it first haha. Only joking, this really is fascinating and extremely informative.
@sandervanderkammen9230
@sandervanderkammen9230 3 жыл бұрын
The first airworthy jet airliner was in fact the Boeing 707... it's was the plane that revolutionized aircraft travel.
@petemaly8950
@petemaly8950 Ай бұрын
​@@sandervanderkammen9230 The 707 had worse losses than the Comet & an average airline life of 23 years. ​​​@sandervanderkammen9230 Kharzeestan Krappenz DiktorBummer Jurkzxoffenz etc and co - they should all note good with much awestruckness & extreme wonderment. *UPDATE MORE BREAKING NEWS ETC* De Havilland (Of England) Comets were not grounded after 1970 due to structural problems. *_It's interesting that some of the aircraft on the list should really have been noticeably safer than the Comet due to being a similar type but of much later design & manufacture but they definately were not safer._* How things were back then - *_Accident losses - % of aircraft built._* DeHavilland Comet 4 UK 14% DeHavilland Comet all mks 17% Vickers VC10 UK 5% *_The DH Comet had better safety than or similar safety to many other commercial passenger aircraft of a similar era_* Douglas DC-1 99% Douglas DC-2 47% Douglas DC-3 30% Douglas DC-4 26% Boeing s300 72% Boeing 307 70% Boeing 247 48% Boeing 707 20% Lockheed L-049/149 Constellation 30% Lockheed Electra Turboprop 29% Fairchild FH-227 30% McDonnell Douglas DC-8 14% Sud Aviation Caravelle 15% Canadair CL-44 Turboprop 46% Convair CV-580 Turboprop 22% A comparison of more recent aircraft. Accident losses comparison examples. 1970s - 1980s % of total Aircraft built Similar aircraft type, date / decade, useage, size. Biz Jets BAe-125-800 1.7 % Beechcraft Beechjet 400 2.2 % Cessna 550 Citation II 7.1 % Learjet 35 / 36 12 % Beechcraft 1900 6% Dassault Falcon 10 11.5% Aérospatiale SN.601 22.5% Medium size jets / Turboprops. BAe-146 5.1% Fokker 100 6% McDonnell Douglas DC-9-30 9.5% Fairchild FH-227 30% McDonnell Douglas DC-8 14% Canadair CL-44 Turboprop 46% Convair CV-580 Turboprop 22% Beechcraft, Fokker, McDonnell Douglass, Learjet, Fairchild, Aerospatiale, Canadair, Convair companies defunct. All Comets, including some Comet 1s, had full civilian use certification at some point after 1954, civilian use certification only being withdrawn after commercial flying stopped. Examples were flying until 1997 - one example did a signals research global circumnavigation flight series in 1993 via Australia virtually without a rest travelling 28000 miles, only had an ice warning indicator issue during the flights. *The DH Comet - World Firsts.* 1st gas turbine jet powered airliner. 1st high altitude 8psi pressurised full fuselage length passenger cabin airliner, not a trivial feature as structure strength required for pressurisation considerably exceeded strength required for normal flying stress. Nobody else had done anything similar before the Comet. The b-47 used 2 relatively small, heavily built pressurised modules (the aircraft where 6 had their wings fold up in 2 months while flying & some had their wings fall off while parked). The 1937 Boeing piston engined airliner pressurised passenger cabin was pressurised to 2 psi only - in fact that could easily be done as the normal unpressurized fuselage cabin structure strength for flying stresses only was all that was needed to be adequate so no significant weight increase issues needed addressing. 1st all hydraulically powered flying surface controls & actuators airliner with under carriage wheel disk brakes + ABS. 1st jet airliner to cross the Atlantic. 1st jet aircraft to do a world circumnavigation flights series. *Of course De Havilland had prior experience building many all metal construction airframe aircraft including thousands of jet powered fighter aircraft that were primarily of metal construction with pressurised cockpits & jet engines built by De-Havilland & we know the world's first all metal construction airframe airliner was built in England in the 1920s by Handley Page.* *_De Havilland did indeed always work to better than industry standards at the time, used up to date knowledge for the design & no evidence of negligence or criminal negligence was ever produced in relation to the DH Comet._* The course of De Havilland & the general UK aerospace industry sector was not affected even slightly by the DH Comet. *_Other interesting World firsts_* _World's first turboprop aircraft._ *Vickers Viscount Turboprop Airliner 1947.* *A 1945 Gloster Meteor Aircraft with Turboprop Gas Turbine Engine.* They might like to answer these questions. *Which airline has just ordered* *60 RR England Trent XWB Engines* *& What aircraft are the engines for?* _Bonus question for 10 points._ Which country has the *World's Highest Combined Per Capita* *Nuclear + Defence + Aerospace Sector Activity?* 👍 & 🙂 & of course 😎 indeed. Cheers. _Toodle_ -PIP- *Old* *_Chap._* . .... . ... . ... .. ... .... ... .... Ivcxivcxivcxcxiivx vivcxiccxxcc
@2pikbone
@2pikbone 4 жыл бұрын
It sure was a pretty plane.
@WAL_DC-6B
@WAL_DC-6B 4 жыл бұрын
I agree, it was!
@leekenney9214
@leekenney9214 3 жыл бұрын
0:44, what a beautiful looking aircraft !!!❤️
@EdWhisenantAviation
@EdWhisenantAviation 4 жыл бұрын
Really enjoyed watching 👍
@38911bytefree
@38911bytefree 7 жыл бұрын
It is surprises how futuristic and revolutionary it was by its time. But talking about comercial jets, altough it came later than the 4C, nothing matches the L1011. Confort, noise level, safety and technology. a PROPER aircraft. And so does the 707 till the point saha air operated them (3 units) until 2013. It was a flying jeep.
@Alan_Mac
@Alan_Mac 8 жыл бұрын
If only they had used round/oval windows....
@WAL_DC-6B
@WAL_DC-6B 8 жыл бұрын
Which is exactly the type of windows (oval) that were used on the later, more successful version, the De Havilland Comet 4. A major factor that brought down the two BOAC Comet 1's along the Italian coast in 1954 is the process in which the cabin windows were held in place. The early Comets had a very thin, though apparently well tested, aluminum skin in the fuselage. The cabin windows were riveted in place through this skin (versus, say, using an adhesive glue). That very thin skin, about a mm or less in thickness, developed tiny stress cracks around the rivet holes from cabin pressurization cycles. Those stress cracks grew larger, potentially with each flight, eventually rupturing and causing the catastrophic explosive breakup of the aircraft at high altitude.
@datprawn4850
@datprawn4850 7 жыл бұрын
Britain had to learn about windows the hard way, and yet the Americans were already ahead of improving on it. They always do with anything british built. I'm just surprised that the Nazis hadn't even gotten round of inventing the first passenger jet. Jet Fighters yes, but a Passenger Jet? How they've missed an opportunity like that
@Tillerman56
@Tillerman56 7 жыл бұрын
East Germany had an unsuccesful try with the Baade 152, ff 1958. It was a development of a bomber designed in Russia by former Junkers engineers. Look it up with Google, it is an interesting story. One fuselage, which was not completed and had never flown, survived and is now on display at Dresden airport.
@WAL_DC-6B
@WAL_DC-6B 7 жыл бұрын
I've seen photos of the Baade 152 years ago. Little was known of this East German airliner back then. It is a bit of an ungainly looking aircraft with its bicycle landing gear and upfront navigator's compartment that looks a bit like a front windshield on a high speed train. I saw a photo of the one remaining Baade 152 at the Dresden airport. Looks to be a fairly complete fuselage. By the way, didn't VEB Plasticart produce a plastic kit of the 152?
@orange70383
@orange70383 7 жыл бұрын
It was all about the look, art.
@TheUnatuber
@TheUnatuber 4 жыл бұрын
Canopus is the *second* -brightest star in the night sky. Appropriate!
@sandervanderkammen9230
@sandervanderkammen9230 4 жыл бұрын
And a Comet is an object that usually explodes before striking the Earth.
@johnfairbairn3918
@johnfairbairn3918 4 жыл бұрын
Brilliant
@bomjam2590
@bomjam2590 4 жыл бұрын
People liked the look of these jets, but unfortunately, they were not safe.
@jaycycling497
@jaycycling497 5 жыл бұрын
Comet looks like a little Dream 🌜Liner 😃
@bcshelby4926
@bcshelby4926 5 жыл бұрын
...I still remember seeing Comet 4Cs in Mexicana colours operating in and out of O'hare during the 1960s. The Comet 4A was designed for US carrier Capital Airlines which would have made them the only US operator of the type, however the sale never went though due to financial difficulties at the airline. Capital which already had a fleet of VIckers Viscounts was also interested in the Bristol Britannia, and a Britannia was painted in the airline's livery for its North American tour. Had the airline not experienced the serious financial issues that led to its' consolidation with United, the Washington DC based airline would have operated three British built aircraft types.
@WAL_DC-6B
@WAL_DC-6B 5 жыл бұрын
Northeast Airlines, operating largely in the New England area of the U.S., also expressed interest in the Bristol Britannia and one was even painted by Bristol in NE colors much like the Capital one. But, in the end, Northeast cancelled the order being more comfortable with the Douglas DC-6B for its Boston to Miami route. Northeast would follow in Capital's footprints and also purchase the Viscount, but in much smaller numbers. As for the Comet, yeah, it's too bad that order was cancelled by Capital. A few years later Capital would place orders for seven Convair 880s and five Lockheed Electras. The 880s were never built for Capital, but the five Electras were indeed completed in Capital's last livery markings. I believe PSA would get all or at least some of the cancelled Capital Electras. Thanks for pointing out the Capital - Comet connection.
@bcshelby4926
@bcshelby4926 5 жыл бұрын
@@WAL_DC-6B ...I didn't realise Northeast was also looking at Britannias. Several months before the merger Capital leased 720s from United for their Cleveland to Miami, Cleveland New York, and New Orleans New York routes.
@daleeasternbrat816
@daleeasternbrat816 5 жыл бұрын
Eddie Rickenbacker said to Bill Allen" that guy sure knows how to sell airplanes" referring to Tex Johnston's barrel rolls.
@marksinthehouse1968
@marksinthehouse1968 3 жыл бұрын
I’ve seen designs of the unbuilt comet 5 that had swept tail fin and more swept back wings engines still in the wing roots if that was built it could of sold well likewise the VC7 the civil airliner based on the valiant V bomber ,but Boeing nailed it with the 707 wow that was ahead of its time especially that all airliners today still follow the same basic planform
@dhtelevision
@dhtelevision 6 жыл бұрын
The comet “Canopus” is now at Bruntingthorpe, And is the only comet in the world capable of taxiing under its own piwer
@doktorbimmer
@doktorbimmer 5 жыл бұрын
*There are over 400 Boeing 707 type aircraft in still in service in several countries.. they expect to remain in active service until at least 2040.*
@WAL_DC-6B
@WAL_DC-6B 3 жыл бұрын
@@doktorbimmer The number 400 has to include the Boeing KC-135s still in service with the U.S. and French air forces. Otherwise, I don't know of any 707s still in commercial service.
@bobcannell7603
@bobcannell7603 3 жыл бұрын
The Nimrod maritime patrol aircraft was a militarised and updated Comet. Introduced in 1969 (replacing the Avro Shackleton, itself derived from the WW2 Lancaster bomber) and retired in 2011 after terrible fires and crashes with heavy loss of life. I'm afraid us Brits dont know when something has had its day and should be put in a museum and replaced with new and safer technology.
@WAL_DC-6B
@WAL_DC-6B 3 жыл бұрын
Thanks for your comment! I wonder when the U.S. will realize aircraft such as the P-3 Orion (militarized Lockheed L-188 Electra), KC-135 Stratotanker (developed in conjunction with the Boeing 707) and especially the B-52 Stratofortress have had their days. All these aircraft in earlier versions now have examples in museums.
@sandervanderkammen9230
@sandervanderkammen9230 3 жыл бұрын
@@WAL_DC-6B Ironically the RAF replaced the Nimrod with Boeing 707s and its twin engine variant the 737. the Boeing 707/KC-135 series has been recently updated and is expected to remain in service until at least 2045. The B-52 is scheduled for a major upgrade and re-engine program the U.S. Air Force expects them to be in service until 2050. A testament to Boeings design and construction technology in particular the incrediblly long fatigue life of its airframes.
@robertbarham6443
@robertbarham6443 4 жыл бұрын
I flew in a Comet Four from Mexico city to Chicago in the nineteen sixties. It was Mexicana or Aeromexico. I do not remember now.
@WAL_DC-6B
@WAL_DC-6B 4 жыл бұрын
Thanks for your comment! You flew from Mexico City to Chicago on a Mexicana Comet IV. Aeromexico never operated the De Havilland Comet.
@beercommercial1
@beercommercial1 4 жыл бұрын
Hmmm, interesting. Look at the nose design of the Comet, tested on the nose of a WW2 glider instead of a wind tunnel. Then compare it to the nose profile of a Boeing 787 or an Airbus A350. Notice anything?
@sandervanderkammen9230
@sandervanderkammen9230 4 жыл бұрын
The nose of the Comet was copied from the Boeing 307.
@barrierodliffe4155
@barrierodliffe4155 3 жыл бұрын
@@sandervanderkammen9230 No, unlike the Yanks the British did not copy anything. The Boeing 307 looks nothing like the Comet.
@aarr2603
@aarr2603 6 жыл бұрын
It’s funny how the nose of the new 787 looks very similar to that of the comet
@doktorbimmer
@doktorbimmer 5 жыл бұрын
*Well, the irony is that is where the all similarities with the Comet 1 and 787 stop... in 10 years the Dreamliner still has a perfect safety record.*
@philjones3550
@philjones3550 5 жыл бұрын
It's not so funny that the 737 max is falling out the sky like The comet mk1
@doktorbimmer
@doktorbimmer 5 жыл бұрын
*The safety record of the 737 speaks for itself...*
@owenshebbeare2999
@owenshebbeare2999 3 жыл бұрын
@@doktorbimmer Hardly a flawless record...so many fires.
@owenshebbeare2999
@owenshebbeare2999 3 жыл бұрын
@@doktorbimmer Yeah, crap!
@orange70383
@orange70383 4 жыл бұрын
Howard Hughes was a real character, I remember as a kid going on vacation and seeing those Hughes Motor Lodges everywhere.
@SeamusMcGillicuddy0
@SeamusMcGillicuddy0 2 жыл бұрын
The Amazing Mr. Hughes ! He is an American icon.
@zephyr2731
@zephyr2731 4 жыл бұрын
I SO miss the good old days of WTTW and Marty Robinson!
@Astinsan
@Astinsan 3 жыл бұрын
Sucks that they didn’t think about the hull issues.
@fordlandau
@fordlandau 4 жыл бұрын
The Comet is so beautiful.
@c.k.b6840
@c.k.b6840 7 жыл бұрын
The French Sud Aviation SE 210 Caravelle, was the first short/medium range jetliner.
@kona702
@kona702 Жыл бұрын
What a neat video! Thank you!
@lucrolland7489
@lucrolland7489 5 жыл бұрын
The Comet's nose was used by the Caravelle which as another marvel. The British and French were aready collaborating together in the 50s.
@WAL_DC-6B
@WAL_DC-6B 5 жыл бұрын
Good "point!"
@orvilleh.larson7581
@orvilleh.larson7581 4 жыл бұрын
The French Caravelle was another nice airplane. With its aft-mounted jets, it reminds one of the DC-9. If I'm not mistaken, United had about 20 Caravelles in its fleet in the 1960s.
@semsemeini7905
@semsemeini7905 7 жыл бұрын
Flew on the BEA Comet 4. It was narrow inside.
@pec104
@pec104 6 жыл бұрын
I remember how spacious it felt and how wide the seats were.
@oldmech619
@oldmech619 4 жыл бұрын
A friend of mine, many a years ago, worked on the Comet. He said it was a real bitch to do anything on the engine. And those engines back in the days required a lot on work.
@WAL_DC-6B
@WAL_DC-6B 4 жыл бұрын
Thanks for your informative comment! I kind of figured that jet engine maintenance was difficult on the Comet with those powerplants being buried in the inner main wings. I bet many a curse word was uttered working on them!
@oldmech619
@oldmech619 4 жыл бұрын
Dan Uscian My friend was funny. When we worked together on an old B707 JT3D engines, I would always complain. He just smiled. Life could be worse.
@MelioraCogito
@MelioraCogito 3 жыл бұрын
It turns out the window shape wasn't the issue, it was how the rivet holes were created during the manufacturing process to secure the windows to the fuselage. In 1996 while at the School of Metallurgy and Materials, The University of Birmingham, P.A.Withey wrote a paper for the journal _Engineering Failure Analysis_ (later republished in _Failure Analysis Case Studies II_ (2001) by D.R.H. Jones) that suggested the likely cause of the failures was due to de Havilland's manufacturing process in stamping the rivet holes into the aluminium rather than drilling them. His conclusion came from using analytical techniques that weren't available to the Royal Aircraft Establishment (RAE) investigators (who conducted the tests on the Comet I airframe G-LAYU *Yoke Uncle* which was the airframe used in the submersion pressurisation tests) and in part states: _"The failure of the pressure cabin was due to fatigue crack growth from defects which were probably present from the construction of the aircraft and had not been a problem in earlier designs of aircraft, as the required cabin pressure had been lower. That this problem was not detected by the rigorous testing undertaken by de Havilland was probably due to an unfortunate set of circumstances with regard to the order in which the tests were performed, and could not easily be foreseen at the time."_ _"All the observed cracks in the pressure cabin emanated from bolt or rivet holes near the cut-out areas. It was probably not the shape of the cut-outs that was so damaging to the fatigue life of the cabin, rather the method of fixing the windows and doubler plates into the pressure cabin."_ [see: _Failure Analysis Case Studies II_ (2001) by D.R.H. Jones, pp.185-192]
@WAL_DC-6B
@WAL_DC-6B 3 жыл бұрын
Thanks for the very informative description of what was really the major culprit that brought down the Comet jetliner!
@bobbypaluga4346
@bobbypaluga4346 7 жыл бұрын
The Comet was a beautiful and very advanced aircraft, it does concern me that while we sing praises to this leap forward, we can't avoid the fact that so many aircraft blew up or failed to successfully take off, resulting in a great loss of life. Tragically the Comet was not ready to carry passengers. The Comet on display in Seattle looks beautiful, smaller vertical stabilizer and the long thin body, I’d put it up there with 757 for the most bird like aircraft. I think we should give more credit to the Caravelle, the French built a much better aircraft that they do with those gawd awful cars they produce
@bobbypaluga4346
@bobbypaluga4346 6 жыл бұрын
I don’t think DeH had too much to worry about as far as Americans spying on the Comet’s development. The Boeing Dash 50 (the prototype name given what would become the 707) bares nothing in common with the Comet, in fact one could save the opposite occurred. Boeing was planning and designing a 100-200 passenger passenger jet, the Comet was restricted to a mail carrier with less than 25 seats, that was then increased or 75 seats. After the 707 was selling well, DeH extended the Comet to carry more than 100 people.
@bobbypaluga4346
@bobbypaluga4346 5 жыл бұрын
Exactly if you want to throw around charges of copying aircraft what did DeHav take from Boeing’s 707 to change with later Comet’s 3 and 4? Try seating for well over 100 passenger, even the VC-10’s were in the under 100 seat class along with the Hawker Sidney Trident. The Trident also had competitive problems with the 930 mile range and underpowered Spey engines. RRs more powerful 178 engines went into later Tridents., Comet seating went from 4 across to the 707/727’s 6 across. BEA wanted 727’s and 737’s for IntraEurope routes the British government said no. Sales Tridents- 117. 727’s- 1832. Comets- 114. Caravelle- 282
@leneanderthalien
@leneanderthalien 5 жыл бұрын
The Caravelle use the nose from the Comet...the accidents who occurs on the Comet (caused from metal fatigue) did learn important things to improve the relability/safety from ALL aircrafts
@sandervanderkammen9230
@sandervanderkammen9230 4 жыл бұрын
@@leneanderthalien The Comet used the nose of the Boeing 307, the worlds first pressurized airliner. Boeing was more than a decade ahead of DeHavilland in pressurized passenger aircraft design and construction, aircraft like the B-29, 307, 377 and the B-47 All predates the Comet and the design of Boeing 707 was completed before the findings of the Comet Disaster investigations were completed or implemented. The lesson learned was don't buy a jet airliner from a company that previously made all of its successful aircraft out of wood.
@bobbypaluga4346
@bobbypaluga4346 4 жыл бұрын
Sander Van der Kammen Had the Comet engineers copied some of B-29's features such as the skin riveting techniques, window shape, and thickness of the aluminum, 100's of lives would have been saved. Boeing used the same thicknesses they used in the B-29 to design the Dash 50, which was 4X the thickness of the original Comet 1. Why would you even think you could produce a pressurized airliner with a skin 75% thinner than what had become an industry standard?
@codered5431
@codered5431 6 жыл бұрын
It will always be the first jet liner
@MrShobar
@MrShobar 6 жыл бұрын
That left a huge, smoking economic hole...
@doktorbimmer
@doktorbimmer 5 жыл бұрын
*If only if had been the first **_successful_** jet airliner....*
@user-ky6vw5up9m
@user-ky6vw5up9m 5 жыл бұрын
Vickers Viscount had an excellent record and was popular with US Airlines.
@alejandrayalanbowman367
@alejandrayalanbowman367 5 жыл бұрын
@@gaittr Idiot. Putting an advanced aircraft into the hands of incompetent American pilots is what caused Harrier crashes.
@doktorbimmer
@doktorbimmer 5 жыл бұрын
@Alejandra y Alan Bowman *It is apparent from your benighted comments that you are not at all knowledgeable or experienced on this topic...*
@kevinmalone3210
@kevinmalone3210 Жыл бұрын
The Comet was on the right track, and truly ahead of its time, but just wasn't throughly tested enough with all the problems worked out before put into service. Not enough was known about high altitude long range passenger jet travel with an aircraft such as the Comet. The Comet was a beautiful jetliner though.
@WAL_DC-6B
@WAL_DC-6B Жыл бұрын
Well said!
@kevinmalone3210
@kevinmalone3210 Жыл бұрын
@@WAL_DC-6B Thank you, and thank you for your video, it was interesting.
@sandervanderkammen9230
@sandervanderkammen9230 Жыл бұрын
Unfortunately Kevin your little tale doesn't hold pressure either.. Metal fatigue was well-known and understood by the Industry leaders like Boeing, Douglas Junkers and Lockheed who were all successfully building pressurized airliners a decade earlier. The real tragedy of the _Comet Disaster_ was it could have been easily prevented if de Havilland had simply followed industry standards for the design and construction of pressurized cabins. De Havilland had simply no experience with riveted aluminum airframe structures and was building aircraft primarily from WOOD right up until the company failed in 1958. The Comet Disaster remains the worst example of engineering incompetence and criminal negligence in commercial aviation history. A truly shameful and humiliating Chapter in British history as well.
@WAL_DC-6B
@WAL_DC-6B Жыл бұрын
@@sandervanderkammen9230 You could also argue that the concept of "whirl model" was understood by De Havilland but overlooked by Lockheed in its late 1950s L-188 Electra airliner which led to two fatal crashes as a result of this aeronautical engineering oversight.
@sandervanderkammen9230
@sandervanderkammen9230 Жыл бұрын
@@WAL_DC-6B Yet, de Havilland placed the engine inlets on the Comet in the leading edge of the wings which had the unintended effect of creating engine inlet pressure loss plus disruption and seperation of airflow over the wings significantly reducing lift at high angles of attack, based on a popular aerodynamic theory in Britian at the time which later proved to be completely wrong in both later wind tunnel testing and the 3 crashes as result from this aeronautical engineering oversight.
@Chris_at_Home
@Chris_at_Home 4 жыл бұрын
I remember seeing Nimrods in SW England in the early 70s when visiting a base with a P3 Orion
@WAL_DC-6B
@WAL_DC-6B 4 жыл бұрын
Thanks for your comment regarding seeing Nimrods. I witnessed an RAF De Havilland Comet IV taking off from Chicago's O'Hare Field sometime in the late 1980s (it caught my attention as it had a louder than usual takeoff sound). That was the last time I ever saw a Comet.
@alongthebluff
@alongthebluff 7 жыл бұрын
A very sexy looking aircraft even by today standard
@WAL_DC-6B
@WAL_DC-6B 7 жыл бұрын
I agree, the De Havilland Comet jet airliner does have good looks much like the Lockheed Constellation from about the same period in time.
@doktorbimmer
@doktorbimmer 5 жыл бұрын
*Very outdated compared to Boeing aircraft at this time...*
@cockula776
@cockula776 5 жыл бұрын
Absolutely a delicious looking plane!
@doktorbimmer
@doktorbimmer 5 жыл бұрын
*Yes, indeed... Boeing makes the most beautiful looking aircraft.*
@GH-oi2jf
@GH-oi2jf 5 жыл бұрын
alongthebluff - Looking at it from an engineering standpoint, I see the engine placement as complicating maintenance. The idea clearly didn’t catch on.
@hertzair1186
@hertzair1186 4 жыл бұрын
Sadly the structural fatigue of pressurization wasn’t understood enough, causing the inflight airframe failures early on on the Comet...
@sandervanderkammen9230
@sandervanderkammen9230 4 жыл бұрын
Pressurization was well understood at the time.. Just not by DeHavilland.
@yakacm
@yakacm Жыл бұрын
It's insane the 1 choice, having square instead of round windows, sealed the fate for the whole of the British aircraft industry. Saying that, I'm sure we would have found another way of messing it up, we Brits are very good at that, and the Yanks are impeccable salesmen.
@WAL_DC-6B
@WAL_DC-6B Жыл бұрын
From my understanding it wasn't so much the use of square windows that doomed the Comet's sales, but the bonding (riveting) and the thinness of the skin that affected its downfall.
@sandervanderkammen9230
@sandervanderkammen9230 Жыл бұрын
de Havilland was company that was still building aircraft primarily from WOOD right into the 1950s and simply lacked technology and experience required to build fully pressurized cabins made from riveted aluminum alloys... they used aluminum skins that were much too thin, did not use rip-stop doubler joints (standard by this time) the fuselage reinforcements hoops were too narrow and spaced too far apart and they used too few riveted fasteners with poor installation techniques and quality control. De Havilland needed outside help to figure out the problem and fix them... by then the race was over.
@petemaly8950
@petemaly8950 Ай бұрын
​@@sandervanderkammen9230 ​​​@sandervanderkammen9230 Kharzeestan Krappenz DiktorBummer Jurkzxoffenz etc and co - they should all note good with much awestruckness & extreme wonderment. *UPDATE MORE BREAKING NEWS ETC* De Havilland (Of England) Comets were not grounded after 1970 due to structural problems. *_It's interesting that some of the aircraft on the list should really have been noticeably safer than the Comet due to being a similar type but of much later design & manufacture but they definately were not safer._* How things were back then - *_Accident losses - % of aircraft built._* DeHavilland Comet 4 UK 14% DeHavilland Comet all mks 17% Vickers VC10 UK 5% *_The DH Comet had better safety than or similar safety to many other commercial passenger aircraft of a similar era_* Douglas DC-1 99% Douglas DC-2 47% Douglas DC-3 30% Douglas DC-4 26% Boeing s300 72% Boeing 307 70% Boeing 247 48% Boeing 707 20% Lockheed L-049/149 Constellation 30% Lockheed Electra Turboprop 29% Fairchild FH-227 30% McDonnell Douglas DC-8 14% Sud Aviation Caravelle 15% Canadair CL-44 Turboprop 46% Convair CV-580 Turboprop 22% A comparison of more recent aircraft. Accident losses comparison examples. 1970s - 1980s % of total Aircraft built Similar aircraft type, date / decade, useage, size. Biz Jets BAe-125-800 1.7 % Beechcraft Beechjet 400 2.2 % Cessna 550 Citation II 7.1 % Learjet 35 / 36 12 % Beechcraft 1900 6% Dassault Falcon 10 11.5% Aérospatiale SN.601 22.5% Medium size jets / Turboprops. BAe-146 5.1% Fokker 100 6% McDonnell Douglas DC-9-30 9.5% Fairchild FH-227 30% McDonnell Douglas DC-8 14% Canadair CL-44 Turboprop 46% Convair CV-580 Turboprop 22% Beechcraft, Fokker, McDonnell Douglass, Learjet, Fairchild, Aerospatiale, Canadair, Convair companies defunct. All Comets, including some Comet 1s, had full civilian use certification at some point after 1954, civilian use certification only being withdrawn after commercial flying stopped. Examples were flying until 1997 - one example did a signals research global circumnavigation flight series in 1993 via Australia virtually without a rest travelling 28000 miles, only had an ice warning indicator issue during the flights. *The DH Comet - World Firsts.* 1st gas turbine jet powered airliner. 1st high altitude 8psi pressurised full fuselage length passenger cabin airliner, not a trivial feature as structure strength required for pressurisation considerably exceeded strength required for normal flying stress. Nobody else had done anything similar before the Comet. The b-47 used 2 relatively small, heavily built pressurised modules (the aircraft where 6 had their wings fold up in 2 months while flying & some had their wings fall off while parked). The 1937 Boeing piston engined airliner pressurised passenger cabin was pressurised to 2 psi only - in fact that could easily be done as the normal unpressurized fuselage cabin structure strength for flying stresses only was all that was needed to be adequate so no significant weight increase issues needed addressing. 1st all hydraulically powered flying surface controls & actuators airliner with under carriage wheel disk brakes + ABS. 1st jet airliner to cross the Atlantic. 1st jet aircraft to do a world circumnavigation flights series. *Of course De Havilland had prior experience building many all metal construction airframe aircraft including thousands of jet powered fighter aircraft that were primarily of metal construction with pressurised cockpits & jet engines built by De-Havilland & we know the world's first all metal construction airframe airliner was built in England in the 1920s by Handley Page.* *_De Havilland did indeed always work to better than industry standards at the time, used up to date knowledge for the design & no evidence of negligence or criminal negligence was ever produced in relation to the DH Comet._* The course of De Havilland & the general UK aerospace industry sector was not affected even slightly by the DH Comet. *_Other interesting World firsts_* _World's first turboprop aircraft._ *Vickers Viscount Turboprop Airliner 1947.* *A 1945 Gloster Meteor Aircraft with Turboprop Gas Turbine Engine.* They might like to answer these questions. *Which airline has just ordered* *60 RR England Trent XWB Engines* *& What aircraft are the engines for?* _Bonus question for 10 points._ Which country has the *World's Highest Combined Per Capita* *Nuclear + Defence + Aerospace Sector Activity?* 👍 & 🙂 & of course 😎 indeed. Cheers. _Toodle_ -PIP- *Old* *_Chap._* . .... . ... . ... .. . .. .... ... .... Ivcxivcxivcxcxii vxvivcxiccxxcc.
@YesYouAreAbsolutelyCorrect
@YesYouAreAbsolutelyCorrect 4 жыл бұрын
"...And the world's fastest passenger jet could take you in complete comfort and relative quiet directly to the ground".
@g2bam
@g2bam 4 жыл бұрын
Yeah, too right. So don’t ever set foot on a Boeing 737 Max if you want to live. Stick that in yer pipe whoever you are. 🇬🇧
@sandervanderkammen9230
@sandervanderkammen9230 4 жыл бұрын
The Comet disaster was the worst engineering failure in aviation history, with 26 accidents averaging 1 out of every 4 aircraft lost due to accidents or incidents and worst fatalities per passenger mile.
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