Yours are amongst the MOST interesting and informative videos on all of KZfaq. Succinct and to the point with no unnecessary content. Many thanks.
@kevinolesik150010 жыл бұрын
that is so cool ... imagine the heat and forces applied to those materials during operation ... thanks for the up close look at how this stuff goes together !
@2011dtish215 жыл бұрын
What I would give for just a few hours of a macro shot of you working on installing blades. Boy. The most relaxing thing while working on projects late at night
@AgentJayZ5 жыл бұрын
I think you need to take the gearhead test...
@yousafzaifrnd5 жыл бұрын
Excellent! you mean business. No extra music, nothing. I appreciate.
@vigneshk63204 жыл бұрын
Iv been searching for design details on jet engine for over a month now and the videos from your channel saved me a lot of time, "SUBSCRIBED"😊😊👍👍
@AgentJayZ12 жыл бұрын
@343jonny Those are struts in the tail pipe, used for positioning the rear cone. The rear cone reduces turbulence in the exhaust stream by eliminating the step change from the annular shape of the turbine exit to the tubular shape of the jet pipe. The struts are airfoil shaped to reduce turbulence as the gases flow past them. They are replaceable, but not adjustable. Thrust-vectoring is a relatively new technology of flight engines, and we never see it in our business.
@SPEAKERSRULEMYWORLD8 жыл бұрын
"actually the mop bucket wouldn't be there in operation" lol... good one
@oisiaa13 жыл бұрын
Another awesome video! You have no idea how much I look forward to each of these.
@TalksWithDirt13 жыл бұрын
You are the purveyor of North American turbine goodness to humanity!
@parsecpres3 жыл бұрын
Amazing! Technical explanations while demonstrating practical application. I envy you in your vocation!
@FrontSideBus13 жыл бұрын
Letting you do these vids is good advertising, and it's working. If I had an engine that needed servicing, I'd want you guys to do it!
@bchokola11 жыл бұрын
I have to correct you, sir. I worked on C-130's for about 6 years. We used the T-56-A-15 engines which put out around 4,000 horsepower. If you do the math, 19,600 in/lbs at 13,820 rpm = 4297 horsepower. If you subtract frictional losses from the gearbox (13.54:1) , I wouldn't be surprised to see that you lose 100-200 hp at least! That being said, I really do enjoy your videos. I just so happen to be a specialist for one engine. You seem to know quite a bit about turbine engines in general!
@kkooloo57814 жыл бұрын
This guy makes super explained videos for the layman 🇬🇧
@jrdeckard33173 жыл бұрын
You need dedicated roll pin holders and punches, as used in gun-making.
@jacobg22963 жыл бұрын
Spins 4 times with a single push, those bearings are so perfect
@AgentJayZ13 жыл бұрын
@MiG29MOVT The pins are destroyed in shear upon blade removal. The pins are then driven out of the hole in the disk... towards the hub. The blades are indeed ceramic thermal barrier coated. This can increase the temperature tolerance of these parts for increased performance or longer life, or both. The blades themselves are made of hi-temp alloys, like the blades in all jet engines.
@sgtjonmcc7 жыл бұрын
Wow just a standard rollpin retaining those blades incredible
@AgentJayZ7 жыл бұрын
The blade locks, whether pins or small metal strips have a very specific function, discussed in detail in other videos. It would not be correct to say that the locking devices "retain" the blades during operation of the engine, but in only a very small range of rotor speeds which are between being completely stopped, and turning just enough so centripetal force begins acting on the blades. Centripetal forces lock the blades into their mounts in the disk long before any aerodynamic forces are created which would tend to slide the blades axially in their mounts. The locking devices only need to be as strong as a paperclip, whereas the forces on the blade roots in their mounting slots during engine operation is equal to the weight of several full size pickup trucks for each blade.
@jaypearce67436 жыл бұрын
I want to say "fantastic". You've got a great coping mechanism
@jessereiter3288 жыл бұрын
Older than I am and I am 60 . I worked APU s one was used to start the F4. The other ran Radar we would get some that had 40,000 hours on them, we would put new bearing and seals in them, ship them back
@AJKandK11 жыл бұрын
Ok got it. With the molds, tools & machines I design and build for a living I'm used to the hardened dowel and roll pins that are used. One would have to beat pretty hard to get them to shear & in the process destroy the blade and possibly the disk. The pins you're using, being a roll pin and probably a little softer allows it to fold over and shear with minimal persuasion. Trust me until being able to have you walk use through these engines, most things about these was a big mystery.
@phillipolivarri15 жыл бұрын
We apply Pt-al coating for the t56/501k stage 2 vane segments down here in Texas for Rolls Royce. That was really interesting to see the size difference between that j series and t56
@56hueycobra9 жыл бұрын
You're Teaching ME Something I Did Not Know Sir!!!
@AgentJayZ13 жыл бұрын
@TalksWithDirt .. I'm just a machine geek who is allowed to film the toys. Most turbine overhaul companies won't let employees take pictures of the work they do. I'm lucky, so feel it's my obligation to share with the curious.
@psycronizer8 жыл бұрын
Jayz those lock pins you have (we call them roll pins here in NZ) are what I used to rebuild the power-valves in my Suzuki RGV-250 N....and when done right they last forever and dont flog out a horrible hole...usually due to the difference in characteristics
@AgentJayZ8 жыл бұрын
+psycronizer A long way back, I rode a friend's RG500 Gamma. It was quite impressive,
@John669710 жыл бұрын
I would never have thought of that trick. thanks for the responce
@jolietjake197013 жыл бұрын
Keep up the good work and please dont stop bringing us these awesome videos!
@AgentJayZ11 жыл бұрын
Oh, well I will not argue with anything you say, because you have much more experience with that engine than me. I was just rying to point out how much better the T56 was at making power than the older engines. When you say gearbox, that is a different thing on a turboprop: The J47 gearbox uses one percent or so of engine power to drive accessories. The T56 gearbox drives the prop with about 99% of engine power, so it would likely have the losses you mention.
@AgentJayZ12 жыл бұрын
Whether the slots face front or back, they still are arranged from inner diameter to outer diameter, so balance-wise it makes no difference. Axial position is of such a small consequence that it is disregarded.
@charleschristensen30857 жыл бұрын
AgentJayZ
@xnato-uq1tn6 жыл бұрын
Those lock pins are spring roll pins, which I've used as an auto and bus mechanic for decades. They look to be SS or better, very hard, strong, tough, doesn't like to deform. I am going to see if I can find a video that shows how you remove those pins. They are installed into blind holes, you can hear them clang as they bottom out in their holes. I'll bet it isn't easy. And these are the hollow types. There are pins that look like a lunch wrap, a tight spiral of SS or spring steel. I remember the pain of trying to remove those monsters. Cryo, perhaps? I'm keen to find out, if I dan.
@BennyHeflinger9 жыл бұрын
Wow... these videos are great, thanks for sharing them!!! I hope one day it could be possible to make stage compliant commercial SST's...
@carmelpule69547 жыл бұрын
Considering the direction of motion of the turbine blade, those locking C type slotted coiled spring pins should be inserted in position with their slot pointing outwards. The first one was fine , but that shown at 1:33 should be rotated a little. When inserted as I suggested the load that can be taken by the locking pin is much higher. In one of my industrial investigations , I once found one of these C slotted coiled spring pins was being used as a cotter pin to lock a very large boiler fan on to a shaft for an Electric power station. The slot was positioned parallel with the shaft and the double shear action caused it to spring each time the fan started and stopped. Eventually metal fatigue crept in and the other side of the slot broke all along its length. If the locking pin was installed through a rotation of 90 degrees, The shearing action would not have resulted in the locking pin being subjected to such metal fatigue through continuously springing it. In this particular case it I do not know how important it is but the point how to insert these type of locking pin needs consideration when the load is "pulsating". In this case the ,considering that the turbine blade is taking the slipstream of the guide vanes before it, the blade is being pulsated and forced back.
@AgentJayZ7 жыл бұрын
+Carmel Pule' Well you sure have a pedant's taste for minutiae. Unfortunately, you are lacking in understanding on the function of turbine blade locking devices. I've made videos discussing this subject, but a guy that knows as much as you about so much prob shouldn't bother... Thanks for the criticism, tho. Cheers.
@carmelpule69547 жыл бұрын
AgentJayZ, Sir, no criticism was ever meant and as a consultant engineer, I just related my own experience with such locking C slotted pins inserted in the wrong orientation.
@WasimAkhtaraircraftengineer10 жыл бұрын
Excellent work
@bchokola11 жыл бұрын
The T-56-A-7 engines put out even less horsepower, since the TIT was reduced from 1050 to 960 *C (If I remember correctly; I used the tech data that dealt with -7 engines, but never dealt with them in reality. They used solid turbine blades vs. the -15 hollow, cooled turbine blades that could handle the higher temps). I believe that would put the horsepower somewhere around 3500+. Again, all of this is on a nice, cold day. A warm day would make you hit TIT before max torque and limit your power
@AgentJayZ11 жыл бұрын
The answer is in the comments to this video. I never did show it in any video, because it really isn't a big mystery.
@AgentJayZ13 жыл бұрын
@mytmousemalibu Yes, I'm not as up on my old time fighters as I should be, but i know some J47s were fitted with afterburners. The roll pins are hi temp, and bit softer than regular ones. At least they shear off easily when the blade roots are tapped forward to remove the baldes.... Uhhhhh never mind that! I never said that.
@bchokola11 жыл бұрын
That would be a really fantastic career! And yes, I'm heavily biased haha. We were brainwashed to hate "straight jets" (turbofan/jet) In the USAF, there were two engine mechanics: turboshaft/prop and straight jets. It kinda biased us a bit, but we got to work on some really cool aircraft! (The slow aircraft tend to have the most guns). But I'd much rather have the deep knowledge of different types of turbine engines. Impulse, reaction, impulse/reaction, dual spool, Variable IGV's, etc etc
@colindhowell12 жыл бұрын
@mytmousemalibu You're right that the F-86D Sabre "Dog" was an afterburning Sabre, but it was far from the last Sabre. Rather, it was an offshoot of the main Sabre line that was specialized as an all-weather air-defense interceptor, a bomber killer. It had an afterburner for faster climb. The ordinary Sabre was a general-purpose fighter not suited as an interceptor.
@AgentJayZ13 жыл бұрын
@JetAce08 A go kart or a display engine? Well, a 501, which is a T56 without the gearbox or prop, weighs 1200 lbs, and at 3 to 5 thousand Hp,burns many hundreds of gallons of fuel per hour. You need to look at one of those start carts. They come up for sale often on Ebay. Keep in mind they are about 75 to 100 Hp. They`d make good engines for a kart project. An insane kart project...
@mytmousemalibu13 жыл бұрын
@AgentJayZ lol, I had kinda wondered if the blades simply sheared them off! Otherwise there would be evidence of removal, just shear it, tap out remaining piece! Pretty ingenious system they thought up back then! Neat stuff! If i remember correctly, there was 1 afterburning Sabre, the very last one, The "Dog" the F-86D. I dont see it as an F-86 myself, looks way differant, not much in common with the other variants. Much uglier too! Forgot we have a Westinghouse J30 at school too...
@AgentJayZ13 жыл бұрын
@JetAce08 Take away the power turbine, gearbox and prop of a T56, and you would have a screaming little turbojet, but you would need at least 8 of them to get a C-130 off the ground. Those pieces take the energy in a low mass, hi velocity jet of exhaust, and turn it into a high mass, low velocity prop wash. Much more push. It turns a speedboat into a tugboat. Perfect for a cargo plane.... or a monstrous gunship.
@zarbitzmitsuwan241410 жыл бұрын
Thank you very much oh you are very nice man. I like a person like you ,you are very kind to share these for the people. i wish God bless you. Hey AgentJayZ please let me see how to take out the locking Blades. Very thanks again and that will make every one be happy and you too. May God bless you.
@turbodyne.lighting13 жыл бұрын
@AgentJayZ all this is true, and you have helped me greatly in understanding that, but I was speaking more of a jet powered go cart, or something ive always wanted, a small jet powered glider, with a system that restarts the engine while air born so one could get to altitude under its own power, shut the engine off, glide back down, then get back up to altitude again. Or in my own crazy case, just having an engine to run and work on for the hell of it : )
@sanjivvkhanna14983 жыл бұрын
Hi!! Agt J very nicely explained. I suggest you to start tutorial classes ,step to step ,every minute details inside of latest fighter and pax jet engines. Either you be live or video post. You see at currently all your previous videos are not in order.
@AgentJayZ3 жыл бұрын
Just uploaded the 54th video chronicling the overhaul of a turbojet engine on Patreon.
@turbodyne.lighting13 жыл бұрын
@AgentJayZ lol, well ok a drag cart then. But I was speaking more of using the thrust to push it, not shaft Hp though. Plus I think i have more fun building my own stuff then getting a actual jet engine. I learn more from building it, not to mention its hard enough building the little projects I do since I have no real area to build in. Im technically not suppost to have any of this crap in my barracks room, or work on it at the cryo shop, so im kinda stuck with hoping a shop mate will let
@Windtee13 жыл бұрын
@AgentJayZ I enjoy your vids and all the extreme detailed close-ups of the jets. There's always something new to learn about every time. Oh, maybe a "female hand-model" pointing to jet-parts on an episode (as you narrate) would be a fun twist. ;) All the best to you and continued... jet-success!
@SnimHD4 жыл бұрын
I'm watching your videos and You are the best.
@oddballlw13 жыл бұрын
Nice vid! Can't wait to see it run!
@scrfce12313 жыл бұрын
@Fierobsessed I was going to ask the same. My best guess is that since it is a blind hole, a self tapping bolt and a slide hammer is used. Would be a good subject for another vid.
@zainahmed19947 жыл бұрын
amazing...keep making such videos
@EsotericInnovator10 жыл бұрын
That's pure art..
@TheArfdog10 жыл бұрын
3:59 The rear tailcone housing is a diffuser, it's reducing the velocity/increasing pressure of the exhaust stream. So you can probably call it that.
@AgentJayZ10 жыл бұрын
The function of the tail cone is to transform the shape of the exhaust stream from annular to circular... it removes the hole in the middle. Also, I think there is a small amount of diffusion taking place here, as you. That limits losses as the stream approaches the exhaust nozzle, which then trades all that pressure for velocity increase, and generates the thrust.
@TheArfdog10 жыл бұрын
AgentJayZ Thanks, been enjoying your channel since thermodynamics is one of my favorite subjects.
@srinivaskirthy10 жыл бұрын
AgentJayZ Pressure increase downstream of the turbine reduces turbine efficiency. The tailcone cannot be slowing the airstream. The "trading" of pressure to velocity happens only if pressure downstream of the turbine is lower than pressure at a location just after the turbine.
@AgentJayZ10 жыл бұрын
Srinivas Kirthy You are not understanding what I'm saying. Don't bother "correcting" me... send your complaints to the text book publishers. I'm just passing on what's in their books.
@srinivaskirthy10 жыл бұрын
AgentJayZ My simple point was, the annular area between the inner surface of the conical contraction section and the cone must keep decreasing, so that the exhaust can continue to accelerate, thereby trading the pressure to velocity. I wonder what the inlet/outlet area ratio is. If you check the dimensions and calculate this number to be greater than 1. I'm not confronting you or correcting you mate, but just making a point, which, if it is factually correct, either you or I can stand corrected. Thanks for all your videos by the way. I'm learning a lot.
@thebentley714 жыл бұрын
Have you ever worked on a j58 out of the sr71? I'm an A&P mechanic as well, but I never used my license much just a little sheet metal work. I went to an Aviation school in San Antonio. The name of the school was Hallmark Aviation school of Aeronautics, but it is now called Hallmark Aviation College. I would love to work on turbines like yourself. As a young teenager I was fascinated with jet aircraft.
@vigsara91834 жыл бұрын
Great videos and I expecting more from you.
@blackbirdpie2176 жыл бұрын
It's a little hard to get size perspective when we're looking at just the core of one engine and the entire housing of the other. But it likely is a big size difference. I think looking at the turbine disc was where the extreme size difference was more obvious. I am curious how much the sheer mass of that spool not only slows the acceleration but adds significant weight to the aircraft.
@AgentJayZ11 жыл бұрын
I have answered this question so many times, I'm afraid I am unable to continue. Perhaps you may want to read below...
@AgentJayZ12 жыл бұрын
@Dhillipboy Turbines, wherever they are, have only one function. and what do you mean "the" turbine ? Typical bypass turbofans have two, and sometimes three turbines. They all do the same thing. They convert the energy contained in a stream of moving fluid into mechanical torque.
@AgentJayZ13 жыл бұрын
@Fierobsessed I'll give you the same answer I gave docbipe last week: ... I can show you some of the techniques used by jet people, but to learn all of them, you must become one of us...
@SG-oi9ie7 жыл бұрын
You must have a serious amount of patience to install that many pins.
@BindazOm5 жыл бұрын
hy there, there were few things that i was hoping for you to cover or help me in knowing them, they are as mentioned below: 1. I was interested more in knowing about the different types of industrial gas turbines used across the market provided by different manufacturers. differences b/w them, the leading gas turbines till date based on performance and other paraphernalia of its. 2. Also if u can help me in understanding more about the blade loading(axial, in case of compressors and circumferential, in case of turbines) that will be really appreciated. 3. I was also interested in knowing more about how the gas turbine behave while in operation like how cooling of turbine happens? how and by what amount air gets compressed,how can it be varied(with the use of variable guide vanes as in case of SGT-800) and why? how the life of blades and other components goes in case of usage(continuous or as per need) and other things as such! It would be highly appreciated if u can help me in knowing these?
@AgentJayZ5 жыл бұрын
1. A review of the offerings of the different manufacturers? Beyond the scope of a comment box, and a lot of work that you can do as easily as me. 2. The blades of both compressor rotors and turbine rotors, are loaded in many ways: axial, radial, circumferential, and by twisting. Reading any of the books I'm always recommending will be an enjoyable experience for you, and help explain all of this. 3. This request is a strong indication that getting a better understanding of the basics of how these engines work will really help you out. See Answer 2.
@BindazOm5 жыл бұрын
AgentJayZ 1.ya I was hoping to know more about like ...let's say RR has brought into legacy ..this 3spool engine while there different manufacturers who uses single spool itself...I mean in practical (I)how they co-relate each other(ii)why can't just a.single spool multi-stage compressors can be used or something (iii)what is the major difference between industrial Gast Turbine(GT) and the one used in aeroplanes 2.ya I was hoping to see it in practical 3.no, I have the basic knowledge of it...it's just that I want it to be practical....something like u have shown in this video
@AgentJayZ5 жыл бұрын
Let me be a bit more obvious in my answer to you. Your requests are for things that are either very simple, or for things that make no sense. This is almost always caused by a large hunger for knowledge that has gone unsatisfied until now. Your questions can not be answered until you have a basic understanding, which you will enjoy obtaining by reading any of the books I recommend... even just the first few chapters. Without that, there's nothing else I can say, except answer your question about industrial vs aero: In some cases, the core turbomachine is exactly the same, but the onboard accessories differ: aircraft engines have all necessary equipment mounted so that they are self contained. These accessories, such as fuel pumps, oil tanks, fuel controls, oils coolers, and many instruments, are mounted away from the engine to make the installation and maintenance simpler for an industrial version of the same engine. One good example of this is the GE J79 turbojet aircraft engine and it's industrial relative, the LM1500. The main shafts, bearings, compressor, turbine, and engine cases of these two engines are identical, right down to having the same part numbers.
@BindazOm5 жыл бұрын
AgentJayZ ohh maybe, can u suggest some books then...(e-book which could be downloaded online would b grt) n yeah thanks for sharing that basic difference between industrial and aero GT
@jimthompson1299 жыл бұрын
Excellent video!
@wadehicks92706 жыл бұрын
It looked as though there was a crack in the side wall of that part just behind the turbine. As you were panning the camera showing where the pipe go's together rite after the pipe ends it looks like there's one on that side wall. But maybe it just looked that way lol
@AgentJayZ6 жыл бұрын
You shoulda put the lol first. Then we could all just stop there.
@wadehicks92706 жыл бұрын
AgentJayZ it's looks like there's a crack is that better ?
@AgentJayZ6 жыл бұрын
No. Watch the video... ... ... in two seconds the "crack" disappears. Because it is a dribble mark being highlighted by the lights. Do you really believe, that several experienced jet engine mechanics would not notice a huge, 6 inch crack in a case of an engine, sitting in the shop for weeks? Do you think that you can see, for one second of a video... something that the person who shot the video... couldn't? You must have "the best eyes ever"...
@AgentJayZ13 жыл бұрын
@mykhaledi F86-F sabre, flown in California Airshows.
@Windtee13 жыл бұрын
Grubby fingers in HD! Wait, make that Turbine-Jedi grubby fingers... in HD!
@Jatin199029 жыл бұрын
great work, post more.
@AgentJayZ11 жыл бұрын
A lot of you have asked that... so many that I gave the answer over a year ago...
@buzzerbill40188 жыл бұрын
". . . this is what a pin looks like. . . Oooops!. . . " rolls off falls inside the turbine - two weeks later - I found it!
@AgentJayZ8 жыл бұрын
+Buzzer Bill Did that happen? Are you funny? Does anybody think so? Are you gonna keep posting this shite?
@billville1118 жыл бұрын
+AgentJayZ - . . . been enjoying your videos for awhile now. . . I am recovering from an injury that was near fatal - I have been suffering terribly with severe pain for 3 years and now that I am starting to feel a little bit better and am beginning to laugh for the first time in years. . . it feels great to just begin to enjoy life again. Sorry.
@AgentJayZ13 жыл бұрын
@CNCAddict Yes, of course you are correct. BUT I choose to use the common ( and wrong ) description of the effect as centrifugal, just because I sound like a pedantic geek when I insist on using the absolute correct terminology... plus, it's like holding back the tide with a spoon... so I go with the flow. Meh. Plus, your referring to a comment in another video, aren't you?
@thebentley714 жыл бұрын
What if that wheel that holds the turbine blades on the end was made of tungsten, once the the wheel's rpm got to about 60,000 the wheel would turn for a long time. If it is connected to the compression section via a shaft, once the aircraft got up to a high speed say 500 knots just the air being forced into the engine & the heavy wheel holding the blades at exhaust section, it could almost be a perpetual motion type engine, I mean once it got up to cruising speed at a level flight the fuel could be turn way down or even off. It only needs fuel to take off climb & get up to cruising speed.
@AgentJayZ4 жыл бұрын
The engine turns at 7800 rpm. Otherwise it appears your level of knowledge about how jet engines work is sitting at right about zero. Thank you.
@adriancatler98203 жыл бұрын
Hi I cant good speak english i am michanic turbin sgt 100 t0 400 you are vere nice man and frandli tanki you for every think
@davidcircuity64739 жыл бұрын
that is just amazing! you have a cool job. Thanks!
@mytmousemalibu13 жыл бұрын
I thought the pins would be somthing special, not just a simple roll pin! I'd be a bit nervous putting the tail cone on there with an overhung turbine! Also intresting a big castle nut holds it on! Now the F-86 wasn't afterburning if I remember right? Cool stuff Jay! I may be one of you soon! There's a chance ill be at GE here soon. If allowed ill film some at school, we have a JT8D, some APU turbines, looks like what's in your huffer cart!
@gushhnet13 жыл бұрын
@Fierobsessed I would imagine you tap them similarly to how you remove headless / broken bolts from an engine head, etc. There are reverse bits you can use, but we're talking lawn mower vs jet engine here, potentially having quite a few differences in finesse and tools required :)
@laohantun74046 жыл бұрын
thank you mate.....
@CNCAddict13 жыл бұрын
@AgentJayZ Maybe the inverse of centripetal force ;) Seriously..that is a bugger of a problem...I would have thought they'd use threaded pins..or something that comes out more easily. Either way great video!!!
@AJKandK11 жыл бұрын
JayZ you do a pretty awesome job with your video's. Like many Canucks I've known and follow on youtube, you are entertaining and have a gift of teaching. I have one little complaint, What video is it because I haven't found it. Don't beat me for asking, Please! Go easy, I'm a new follower.
@AgentJayZ11 жыл бұрын
Correct me regarding what? This video is about a different engine that the one you mention.
@menendezgilbert7 жыл бұрын
How would you remove those pins?
@AgentJayZ7 жыл бұрын
I've shown the procedure in a video. Please use the index for the playlist "Your Questions Answered"
@robschannel92296 жыл бұрын
kzfaq.info/get/bejne/l7SfhsJ6y5qvaZs.html
@Chris-vx5kp6 жыл бұрын
Answer the question or put a link as a reply.
@chris77777777ify6 жыл бұрын
I believe they use a cordless drill & drill those babes out.
@Stealthy-Guru5 жыл бұрын
No spoon feeding here...do the search or get lost...
@PheloUre7 жыл бұрын
Excellent professor!! :)
@marlibread5 жыл бұрын
that turbine wheel looks spiffy.....hahaha...awesome!!!!!
@sharifabdul42377 жыл бұрын
Wen the leaf requres replacement how will u pull out that small pin.i racked my brains no way i can guess. Can u pliz pliz pliz replay. Iam so much intrested in this videos.i will not have a restful sleep without ur replay. Some of the greatest videos and explanation is outstanding
@AgentJayZ7 жыл бұрын
+Sharif Abdul A later video shows the process.
@robschannel92296 жыл бұрын
kzfaq.info/get/bejne/l7SfhsJ6y5qvaZs.html
@javierestrada69276 жыл бұрын
This videos are great
@bchokola11 жыл бұрын
Sorry for that! I was referring to the T-56 compressor you had laid out horizontally @ 4:30.
@automechanicabrarkuwait5 жыл бұрын
I like this work
@russkysalamander598310 жыл бұрын
fantastic!, facinating
@turbodyne.lighting13 жыл бұрын
I was hoping you would say what the compressor rotor in the background was, I have a C-130 squadron right across the street from my shop. I wonder how much thrust a T-56 engine without the extra turbine stages would produce? I like the size of the T-56 not to big, but not to small. Perfect size to do some experimenting with :)
@seanlarabee78527 жыл бұрын
I do not work in the industry but I am fascinated by jet engines. Your videos are fantastic. One question, why are the turbine blades locked in with set pins rather than screw based fasteners? is it a heat consideration... or vibration etc.. thanks if you get a chance to answer and keep up the great work, both on the clear and understandable videos and the building and maintenance of awesome engines.
@AgentJayZ7 жыл бұрын
I don't really know, but I think it's the simplest, most reliable way to get it done. If the pins were to work loose, they would be driven towards the bottom of their slot by centrifugal force. They are already there, so they would not move.
@seanlarabee78527 жыл бұрын
Thanks makes sense. Thanks for taking the time to reply. Your vids are the best imo for understanding how a jet engine works, short of being an engine mechanic. You really make the components come together for me. Thanks and again keep up the great work, just got done watching your vid of testing on the jet "dynometer" and I loved that... the sound was awesome!!!
@fromanabe86395 жыл бұрын
Are those eight or ten smaller cylinders the combustion chambers?
@TerryPullen9 жыл бұрын
These videos are great. Sound, lighting, content, all first rate. Thanks! A couple of questions, first do you make any of your own tools? And, you deal with a lot of little parts, how do you know for sure that all the pins are in, that you didn't somehow loose a pin and skip a hole?
@AgentJayZ9 жыл бұрын
Yes, if needed. You need to be organized, and check, check , and check again.
@TerryPullen9 жыл бұрын
I thought so, you can't afford to make even a small mistake.
@Ihavetruth2210 жыл бұрын
Your videos are sharp and closeups are clear. What camcorder do you use?
@intellectracoon6 жыл бұрын
thank you sir your videos are great :)
@mudimudi25802 жыл бұрын
Sangat bagus konten ini airfoilnya (bilah) sangat jelas dilihat science airfoil trimakasih sangat jelas pengetahuanya
@AgentJayZ2 жыл бұрын
Terima kasih
@blobusus13 жыл бұрын
@gushhnet Is that what that was? It gave me a little chill, like it was a ghost or something.
@johnknowing-zr8de5 жыл бұрын
Mmm look at 3:03 and it appears there a wiggly crack in the outer metal housing perpendicular to the rear of the outer ring
@AgentJayZ5 жыл бұрын
Yes... let's go with that. Let's believe the image projected on our monitor, one that's been artificially flattened by a camera... even though at 1080p, it's not too bad. Let's ignore the experience of a technician who has been working on this thing literally for weeks, using stereoscopic vision assisted with magnification, and a wide variety of different lighting. Need I go on? It's a slight stain, and you have been fooled by your lack of understanding of what you think you are seeing. A picture might be worth a thousand words, but the real thing beats a million videos.
@turbodyne.lighting13 жыл бұрын
@AgentJayZ me test my designs at his house. which makes everyone think im goin to blow something up. They dont quite trust me knowledge yet, even though i try to tell them i started building this stuff in middle on the back porch on a old wooden table, and the only thing i ever burnt was the hair on my fingers. Im thinking about getting a storage unit and putting a work bench in it though, it will be my own private little shop/get-a-way
@mariusfrost640 Жыл бұрын
It's interesting that the pins don't modify the balance. Or does balancing happen after this point?
@AgentJayZ Жыл бұрын
I've wondered about that too. I weighed a few dozen pins individually. They are all the same weight, within 0.1 gm. Actually they all register exactly the same on our scale with a resolution of 0.1 gm is a better way to say it. The pins are added after the final balance, but during test runs, the engines are far under maximum vibe limits.
@srgofcb12 жыл бұрын
JayZ, shoulden't the slots in the pins all be oriented the same (facing enine inlet)? I can imagine 96 tiny slits could add up to close to an ounce of weight?
@debakordas28513 ай бұрын
Hello sir. I want to learn all the workings of jet engine sir.
@AgentJayZ3 ай бұрын
Start with one of the books I recommend in "Books!", and try watching my playlist called Your Question Answered.
@Ignignokt51508 жыл бұрын
Curious as to the turbine blade removal , how are the roll pins removed to facilitate blade removal from the disc , and do they have a corresponding hole in the base ? I love this stuff , worked on yacht diesels and generators for 30 years but missed my calling .. The only thing that I wouldn't like is dealing with all of those HP lines :p ....
@AgentJayZ8 жыл бұрын
+Ignignokt Mooninite You need to look at the index for a playlist called Your Questions Answered. Hidden therein is the video where I demonstrate the process of removal.
@Ignignokt51508 жыл бұрын
Thanks , wilco . Great videos !
@kilian79198 жыл бұрын
+Ignignokt Mooninite any success in finding the video you were looking for? there's so many Qs...
@Ignignokt51508 жыл бұрын
+Kilian Seelbach Yes . Q48 23:29 , of the Questions answered playlist . I had thought they were extracted whole , but being that they're softer metal than the actual blades , they're designed to shear . These videos are just great , especially if you have mechanical aptitude .
@AgentJayZ8 жыл бұрын
+Ignignokt Mooninite Oh.. you're giving away the secret! However, the mystery shall endure, because nobody reads previous comments before asking about the pins. Extra points to you for using the correct spelling for shear... most folks type in sheer.
@Work-Horse7 жыл бұрын
Thank you for teaching........ SAT SAHEB =)
@SuburbAllied6 жыл бұрын
As always im greatful for your interesting videos! You showed us how the turbine disk got cooled by air coming in through a center hole in the rear(?) cone. As I've understood it, it enters there, but where does the hot air, after it has cooled the disk leave, or exit? Is it through same pipe?
@AgentJayZ6 жыл бұрын
Cooling air for the back of the turbine disk in this engine leaks out into the gas stream where the outside edge of the rear cone forms a small gap to the base of the blades mount to the disks.