I wish more people with cool professions did these sorts of videos! I love learning about everything I can, so videos like this are a beautiful thing, to me.

The only thing better than watching an Olympus being put through its paces,is four of them at take off in the Vulcan!

Fantastic!, that is an amazing engine!. even before combustion starts the noise is just incredible!

No start cart, just a Start cat.

The Fred Dibnah of the jet era. Love it, such running in the blood enthusiasm for engineering. Respect.

I could be laying in bed with my wife, but I wasn't tired so I am binge watching these videos

I never watch these things naked. I *swear* :D

The sheer volume of air, so impressive!

I've seen the Vulcan Bomber a few times, beautiful aircraft and the howl is awesome

A-MA-ZING, I could listen to this for hours :) And thank you for showing us the spin-down as well. That clinging sound of the fan blades is a thing of beauty!

That was the most beautiful engine start I've ever heard.

5:10 Yow! Brave cameraman, getting that close to the intake when that thing is running!

Hear/notice/learn something new every time! Nice revisit of the ol' Britt!! Thanks again. DD

Don't get me wrong, I love the J47 and the J79, but this...this was really cool. There is something very special about the sound of this engine. I think I will watch this video again...

What a RUSH just from watching the movie. You guys have the coolest job ever!

That was thoroughly enjoyable, thank you. I actually just watched your Olympus series again recently and it really does look different now. And your footage clearly shows just how much gas that thing generates.

Great video! Loved it, screaming sound, blowing rocks and all!

That's the most beautiful startup I've ever heard

Wow! what a monster! The turbine engine is such a work of art.

I love the noise it makes when it spools up!

Like that old Depeche Mode tune - Everything counts in large amounts.

Awesome . Olympus is always a jaw dropper . lush sound , can only imagine the bass on startup lol , I imagine its a little like standing next to a funny car on launch

The most beautiful engine that I have seen and listened; It is song for My ears :)

Great job on the engine fellas.

Hello again, JayZ, and thanks for the nostalgia trip - but then nostalgia isn't what it used to be. It brings back memories of my time at R-R IMD (1967-82) and (as I've told you before) designing the Oly 'C' LPT blade: that must have been in 1971, immediately after the bankruptcy. I had previously been working on the Marine RB211 project and that was cancelled, as a result, only to be resurrected a couple of years later as the Industrial RB211. For Tyler H's information, Bristol Aero Engines amalgamated with Armstrong Siddeley Motors in 1958, to form Bristol Siddeley Engines, which was taken over by Roll-Royce in 1966, so that, just as I finished my apprenticeship with BSE Coventry, the change of name was introduced, and I had to apply to join R-R. In another video, you've shown us the lacing wires (that's what we called them) in the LM1500 power turbine: they are, of course, for blade vibration damping. The original Ind Oly 17.5MW power turbine and the Marine Oly TM1/2/3 power turbine had lacing wires, 'inherited' from the ASM Sapphire 7 turbine. We then moved on to interlocking shrouds,with the first new design application at R-R IMD being in the Oly 'C' HP and LP turbines. On the subject of two-spool engines counter-rotating, the HP and LP spools of the Pegasus in the Harrier 'jump jet' do so, specifically to eliminate gyroscopic effects. The two spools of the EJ200 in the Typhoon contra-rotate and the HP spool in the latest marks of 3-spool Trent turbofan contra-rotates relative to the IP spool and the fan.

Amazing! They were in the avro vulcan & concorde, love the yanks for keeping history alive.

Much smaller intake Diameter than I would have thought. The shear (right term?) must have been huge: no wonder it was noisy. Fantastic video. I saw one of the pre production Concordes at Melbourne Airport and they were running the engines are for about half an hour. Most of the of the people around me commented on how noisy it was. That was 1975., the last and only time I saw one flying.

I remember the Concorde and its Rolls-Royce/Snecma Olympus 593s with afterburners. I can tell it was interesting to see the take-off from the side of the runway :o)

4:04 i love that sound.. :D

Would love to just have had a video of this with just the pure sounds from the front... no moving or cutting of the video or anything... just to hear that heavenly full spool...

Thank you for your selfless teaching

You do fantastic videos I been learning a lot of stuff and interesting Australia

oh man that sound! ive seen a couple of similar model turbines in peaking stations around the country, just not the same as an olympus

The first video I have seen where you started it with the skid steer. :-P Used to seeing the start cart!

Insane spoolup sound

All I can say is "Magnificent!" What a great engine from Rolls Royce. I would love to work for them on the production side but I have an aversion to redundancy!

music to my ears

A magnificent beast!

Saw a video of a tornado blowing grass just like that...serious stuff!

Its beauty jet engine. I like it!

Nice engine!

That engine is like the rolls royce of turbine engines! Okay okay, 5 bucks into the bad pun piggy bank...

Oh, we need to full spool up!!!!

Awesome! Can the compressor stator blades (the first ones behind the struts, I can't really see well the others) be trimmed?

I just watched an old video where the start cart spat fire when it started, that thing looked prehistoric

Thank you for another great video. I just wondered: when the engine is run using gas instead of kero, I assume you would need a different fuel pump and injectors. Could you explain the difference between the two?

i have loved all of them

A beast of an engine

Naked? I watched this in a 'gimp suit' complete with ball gag LOL. Seriously though, the Olympus has a sound all it's own and the core on those things is rock solid. No wonder bits of it would up as part of the power plant for the Concorde.

Hello JayZ, I'm glad I took the opportunity to see the two Lancs last week, as the Canadian Lanc is now grounded with an engine problem. However, I will still go to Bournemouth tomorrow for the Air festival and to see that other Avro classic, the Vulcan, and hear the unique sound its four Olympus engines. The Vulcan to the Sky Trust is asking for GBP200k of donations to ensure its airworthiness for next year's air show season, which will be its last, they say. After that, they will maintain XH558 in a serviceable condition and taxi it every so often: very sad, but probably inevitable. So, JayZ, it is highly unlikely that Maddex will be asked to overhaul any Olympus aero engines.

Hi Jay. What kind life do they have in 'generator/pump ' config? I have a fair amount of knowledge about engine life on wing, but the cycles are what kills them in aircraft. Also as a generator/ pump, are they run at a de rated figure or are they run at max continuous to get the most power?

I noticed one of the guys on site had a KC Royals hat on! Any connections to KC. Thanks for the videos from Kansas by the way. Go Royals

Could you show where aircraft engines are connected to the aircraft frame, and what type these connections are? Thanks, love your videos!

for some reason when i hear of a rolls royce jet engine, i image the intake fan blades to be made out of polished chrome and a golden casing. but tbh it's impressive how the company can go from making really luxurious cars to building highly efficient jet engines.

Gods, I love the sound of an Olympus starting up and running. This is one of your best videos, Jay. I love the different shots you brought into this one.

The engines in the Vulcan over here are near the end of their hours,what would be involved (If it's at all feasable) to zero hour them?

Nice fan for my computer ! :D

Hi Jay, Just wanted to piggy back a comment I saw in this thread about the direction of spin of the compressor and turbine. Have you come across any that rotate in the opposite direction? Also, that's quite a large rotating mass, do you know if aircraft have to be designed in some way lopsided to counteract the centripetal force of that spinning mass? Cheers as always, Chris.

She makes some fantastic noise! Love it! Jay does it make the same howling noise the Vulcan makes at power? It does a good job of overwhelming the camera mic! The Rolls Royce/BMW BR710 on the Global Express makes that loud deep resonance like that upon light-off! Kinda makes your insides rumble!

Awesomeness, thank you. Dang. How long is that engine??

I don't know how many of your videos I've watched, but it's a lot. I absolutely loved this one, little bit of plant, lots of great angles on that beautiful engine, amazing sounds and a nice perspective on the environmental effects of a 30k+ hp air cannon. Do your ears pop when you open the door to the control room during a test?

madness!

Great video! If you don't mind me asking a unrelated question: How do turbines make electricity? through the engine shaft linked to a generator? Thank you

beauty !

what is the coating on the inlet guide vanes? it looks really cool

You mentioned the difficulties to get spare parts. Is RR still producing parts or how else did finally you got what you needed? Is there even such a thing as 3rd party suppliers in the jet industry?

For which use are these engines used for with all thenice auxiliary facilities around it?

That sounded great, love your vids. You guys should lease the back property to a construction materials company for hurricane testing, that was awesome! When you say 25MW is that the standalone engine rating or the amount of electrical power being generated once it's in the power plant?

A few questions if I may. 1) After rebuilds or refurbs how many test runs do you guys do to determine whether the engine is ready for service? 2) How long do you generally run the engines for during such tests? 3) In situations where the engines are not under load (Power turbines) how are they tested differently since you are not running load? 4) Do you have any test stand rigging videos? (the before, during and after type, from nothing to on the stand, back to nothing, engine crated and ready to go. I know it sounds boring, and it takes time, but I think seeing some of the finer intricacies about assembly and rigging is actually interesting.)

whilst these olympus engines are power units does that mean your team know what is required to do a similar job on an aircraft mounted olympus?

I know that you do not work with turbofans or props, but i would like to ask you a question anyway; Would there be any profit in ading a counter rotating fan on a turbine fan engine, so that there would be to fans in counter rotating motion instead of one?

Do you know which plant your Generac unit came from? If it's from the Oshkosh plant I may have tested it! I like the smell of jet exhaust. What does one smell like running on propane? I would imagine you'd smell almost nothing.

Love the video. Have you guys thought of offering your services to maintain XH558's powerplants so she can still fly or are aero Olympus engines a different beast altogether?

great video. Are there some implications with a reconditioned engine (shorter oil change interval, dont run such high rpm for the first 100 hours etc)? For example, with a reconditioned car engine the engine has to be run in again and a shorter oil change interval

so, how much LP does it consume on a run like this? I know the liquid fueled engines burn 20 gallons a min at full power (or close to that)

It’s not a Rolls-Royce engine it was designed and built by Bristol Aero Engines as the Bristol B.E.10 Olympus. Rolls-Royce bought out Bristol but this engine dates back to 1946.

Boring is good, real good. This isn't trying on sunglasses😂👌👍👏👏👏

Respect

I was waiting for a few fan blades to go walkies.

I need one of those

if you overhaul an engine, what (important) parts should remain, in order to call it an overhauled engine rather than a new engine? Greetings from The Netherlands!

Jay, you may have answered this in an earlier posting, so apologies in advance. During starting sequence, when the ignitors are energized, is there an engine specific duration that they fire? Great videos thanks!

Really cool engine, i'm a fan of the Avro Vulcan. I have a question: have you ever accidently stepped into the jet wash or put the camera too close to where its going to be?

I was wondering how reliably supplied gaseous propane in large quantities. Now I know.

My only question is; what for an why does this test rig/stand exist? Why are you restoring/rebuilding these amazing engines? Static generators?!

That thing sounds like the opening track to a Moody Blues or Pink Floyd album.

You soon are gonna have a grand canyon in your backyourd, Jay! ;)

Beautiful machine. And great video. But I'm confused about one thing: in this video the engine is clearly putting out a lot of thrust, whereas I thought in its electricity producing mode, the turbine would be used to generate electricity and therefore produce negligable or zero thrust. For the test here in the video, did you install the jet pipe to produce thrust as a way of simulating load? Thanks for great videos and great information.

Such a shiny engine! :) I always thought, that big "nose" in front of majority of engines is a fairing for electric starter and his couplings. Is this wrong for a bigger engines? Or it depends on what environment engine will be working in?

Did you make some modifications concerning the fuel nozzles to be adapted to the gaseous propane ?

How many houses would that engine power.?

What are all of those light clinking noises as it reaches at very low speed when spinning down?

Propane! Jet A is the norm, but how is Propane? Is there any power output difference using Propane? I would imagine that the fuel nozzles are different and that the exhaust output is cleaner than when using Jet A.

I want if that's the same engine they use on the Concorde it just looks like a supersonic jet jet engine

Great video....did you mentioned that this engine is used for producing electricity ? If so, does it drive some kind of output shaft ?

Hi Jay..Question: Can you tell us how much it costs to service or overhaul a jet engine? I guess some are more expensive than others depending on damage or wear..

As I watch in amazement...trying to imagine how far behind this engine the high speed air actually goes. I wondered...does running a power plant like this in a stationary position over stress its mounting points? Does it hurt itself by being prevented from moving as it would in an aircraft? Does this make any sense?

How do you couple the alternator to this? I don't see a power take off shaft anywhere.

During the startup I thought I've got 50-60Hz powerline signal on my speakers. :D

How hot is the exhaust from this engine? I don't know of any particular engine to specify so I ask about this one. Also, what is the two probe looking rods mounted on the exhaust tube. (you went in for a close up on the "probes")