Dropped into a turbine engine

[MrPhantomFury]

Nice sound !!! :D

[ProChoiceJesus]

I'm a sheetmetal & structures guy, tell me how do you extract a small part after it makes that cute, though terrifying music? Are there various methods as per the particular engine? I know demonstrating or talking about this may be sensitive since you're a jet engine shop & all, but I'm just curious how you get something out of there? Might be a fine subject for a video, too.

[AgentJayZ]

@ProChoiceJesus Yes, the mothods are:

1) turn the rotor on the stand, and hope the thing falls out

2) pick engine up with 2 cranes and turn it end over end and hope the thing falls out.

3) disassemble engine and find the thing as well as find a new job.

[55chh]

@AgentJayZ Or just put it all back together and hope nothing happens.

[ProChoiceJesus]

@AgentJayZ Wow, that's tough. The worst I've seen is $170,000 worth of too-deep countersinks (almost 100 too deep) put into a single brand-new plank of a brand-new wing for a P-3. I didn't do it, a highly-experienced co-worker did. That's about the price of a single almost-wing-length plank. Hard to believe were keeping those old things flying, but our cheap govt. won't get the Boeing 737 replacements for the P-3 rolling off the production line. Till then, were stuck with 40 year old P-3 Orions.

[delts99]

sounds like music

[madamerotten]

Now, I will take that sound and put it in my audio editing program and make it the centerpiece of my next sonic concoction!

[lazystart]

That sound is like a musical kick to the cajones... boroscope time!

[janssen70]

Hi AgentJayz, im looking for a small turbine engine that actually produce thrust just for fun

What are the prices of a ready to run one?

[AgentJayZ]

@janssen70 We don't sell small ones. One of these ready to run in fair shape goes for half the price of a decent house. That's fun, eh?

[janssen70]

@AgentJayZ i see i was looking for one half the price of a decent car

[AgentJayZ]

@janssen70 Those ones don't run, and are what we call "beyond economical repair".

[ProChoiceJesus]

@AgentJayZ Or, you might call them "give-aways for some aviation maintenance school."

[dtiydr]

You could hear from the sound that those blades are very hard..

[AgentJayZ]

@dtiydr More important for a compressor blade are, in ascending order, strength, stiffness, and toughness.

[dtiydr]

@AgentJayZ Exactly what i ment, and just what you heard when the nut bounced on the blades.

[KeskinTRS]

Good thing I´m not turbine tech, I`d drop screws in them all the time just to hear the nice sound.

[sbeer6er]

ha ha that is freakin awesome

[operazanotaijin]

Never realized that turbines were made to be musical instruments after they're turned into junk.

[sbscottmonkey]

That's not the sort of sound you want to hear when working on a good engine!! Although, if combustion chambers and turbine were fitted, you'd not have the screw make it's way out the other end!

[AgentJayZ]

@sbscottmonkey You know I've got a few RR Avon videos up, don't you ?

[sbscottmonkey]

@AgentJayZ No - I'll have a look and see them! Cheers, Scott.

[Bagadaboats]

i think im the only american who pronounces "turbines" whith a long i

[wawa1196]

sounds like a masterpiece of junk but it had its better days

[MrKyvegas00]

music to my ears

[ICESPACEMANGALAXY]

@ICESTRONG@ "That is a great like a great demonstation."

[manofdamatch]

I dont understand LOL.

[pdqasapdamnit]

I wish I had a recorder with me when one of the air filters got sucked into the Solar Turbines Mars 100 unit a few months ago. The turbine is rated at 15000hp but checked out at 12575hp. I drives a gas compresor unit in a plant i do some work for. The turbine was at full speed when a mehanic opened the filter housing door and caused one of the filter to fall in. Believe it or not the turbine did explode into a million pieces but had to be manually shut down,not even a high vibration shutdown

[HVGuitarist]

Very very nice sound. I'm using this sound for sample station ... (Sorry i'm using translater. I bad speak english )

[MenacingWithVideos]

Your accent sounds Canadian. Is that close or am I loosing my ability to hunt down Canadians?

[AgentJayZ]

@MenacingWithVideos Hunt down Canadians...?

Watch yourself, this is a wild west frontier town. We have all the same rules the cities have, but nobody follows them.... and everybody has a gun here.

One click to look at my channel, and you wouldn't need to risk your life.:)

[MenacingWithVideos]

@AgentJayZ If that is the case, then you seem to lead a very awesome life style. I would rather work with aircraft parts in a cool city with a high level of guns per capita than lame city like Seattle (home of Boeing and way too many damn coffee shops).

[AgentJayZ]

@MenacingWithVideos

Mmmmm... coffee! I'm runnin' a Sylvia myself... and it's Italian, not Japanese. I've been to the aircraft museum in Seattle; it's fabulous. They have a real SR-71 parked there. And the 707 that was turned into Air Force One that Johnson and Kennedy flew in. And an R-4360. First person to tell me what that is and what it was used for gets a free VDI.

We only work with aircraft engines under special circumstances, all of which I may not discuss.

[StormyMaxPerry]

@AgentJayZ,

R-4360 is an awesome radial engine manufactured by P&W of 4360 (roughly) cubic inch displacement. Four row, 28 cylinders, 52 spark plugs and 3500HP. I too have seen cutaway models in museum displays and can only wonder how it was designed and then maintained. The B36 and "Spruce Goose" (Hughes H-4 flying boat) were two of many famous planes powered by this monster.

The sound made by the screw dropping was hypnotic. Played it 25 times at least. What's a "VDI?" I'll take one :-)

[AgentJayZ]

@StormyMaxPerry Excellent! We have a winner!

Watch my video called the Violent Driving Indicator, and let me know where to send it.

[StormyMaxPerry]

@AgentJayZ

Hey, I won something! :-) I haven't watched the VDI vid yet but I have an indicator on the dash of my minivan that shows if I've exceeded a reasonable number of Gs in braking or turning. It's nothing more than a little, plastic helicopter that sits on a flat recess on the van's dash. If I do a too-extreme maneuver the heli slides off of the recess and topples into a ledge around the recess. Low-tech at its finest! I'll be in touch, thanks.

[StormyMaxPerry]

"Violent Driving Indicator:" Watched the video. A turbine blade! COOL!!! Thank you. Now if I could only find a starter motor and fuel control unit for my Garret GTP-30-67 as cheaply...

[cheetawolf]

9 people had this happen to them while working on a turbine.

[jetpower06]

hey Agent Z, what's the smallest engine with axial compressor you got in stock there?

[AgentJayZ]

@jetpower06 We deal with the RR250, which is about 400 Hp, and the older models have a combination axial-centrifugal compressor. The inlet is about 4 inches in diameter, and the compressor turns at 51,900 rpm.

[jetpower06]

@AgentJayZ OK thanks. Do you have any RR250 or an engine with the axial/radial compressor combo for sale at the moment? It doesn't need to run, it's just for exhibition. John

[Bamchucknorris]

Hey, a great project for you guys would be to strip down an old rusty turbine like this and restore it to brand new condition.

[AgentJayZ]

@Bamchucknorris A great project for you!

We start with engines in better shape, but that is what our business is.

This engine is in a condition known as "Beyond Economical Repair"

But come on up for a visit, and you can spend the next decade restoring this hulk if you want. You'll need about a hundred G's for the bare minimum of parts, at least.

[Bamchucknorris]

@AgentJayZ What turbine is this anyway?

[AgentJayZ]

@Bamchucknorris Its actually the front half of a turbine engine, so it's the compressor section... of a GE LM1500 PD101. A rare early version of this industrial workhorse. It's design is a slight modification on the J79 turbojet, which powered the F-104 Starfighter and The F-4 Phantom II, as well as others.

[chazkez07]

this is probably a loaded question but what exactly is the screw hitting on the way down? just a bunch of the blades?

[AgentJayZ]

@chazkez07 Sounds like a blade or two on every stage of the compressor rotor, and a vane or two on every stage of the stator cases to me. I think we hit all 17 of 'em!

[LarryCanFly]

The new JetZ age Calypso band!

[AgentJayZ]

@MKSCORPIO12

...Uh, maybe you could try decaf... I'm just sayin'...

[Zoloft61]

Never want to hear that sound? I want to hear it again! It sounds like a metal xylophone.

[hootergirlsrhot]

ur lucky that you can easily do anything you want with the junker

[cheetawolf]

that sounds so musical! i want a broken one so i can drop marbles down it :P

[AgentJayZ]

@cheetawolf You can have this exact compressor.

You pay the shipping ( it weighs about 1000lbs, and I'll let it go for scrap value : about $500.00CDN.

It is lying out in our graveyard right now, waiting for you!

[TheMrCJist]

Hehe, I can imagine - you have assenbled your engine. It has taken hours to painstakingly bolt and slot the various sections together. Then you drop a nut into it and it does not come out the other side. A suggestion, forgive my ignorance if this won't work, but some sort of harness that permits you to rotate the engine on its axis diagonally to let the nut rattle its way out? Not very useful if the turbine is buried within a cowling or attached to a plant or you are on site without it but hey..

[AgentJayZ]

@TheMrCJist Takes many man-days to assemble an engine. There does not exist a "swivel mount" lifter to tilt this two-ton engine around to retrieve something dropped in. Even if there was, it would waste a day using it.

Bad for production and for your boss's opinion of your competence!

[TheMrCJist]

@AgentJayZ

From experience of disassembling a cylinder head (laughs at self), I can see now that talking on the scale of hours is a serious underestimate:D

Myself, I'd leave it in there and escape to Mexico before the customer starts it up for the first time. I'd just hope it is not intended for the backup generator of a hospital (laughs evilly).

[dimented24x7]

I never knew turbine blades could be so musical...

[kaszubaf]

No kidding, that would make your heart stop.

[aruju01]

Regarding google moron; There are sharks and there are remoras. This one is a classic remora.

[BuzzBoi315]

This makes me wonder what happens to those high-altitude bugs.

[adrianspeeder]

Oh snap, for sure a sound I don't want to hear on the flightline!

[hootergirlsrhot]

when was Wikipedia ever right? 

[djay102687]

You u said u never wanna hear the terrible sound, but it sounded so cool...

[DjMysticalone]

damn that was fuckin sick.......the instrumental they made .....

[TURST67]

Ghost Turbine is awesome

[kingofquartz]

F.O.D

Every airplane mechanics pain in the ass.

[idontcare80]

Thanks for including the link to Ghost Turbine, it was great.

[TAKR888]

ohhh i get it now, its bad to hear that noise, cuz then it means something has fallen inside. oooo i c

[TAKR888]

why is that a terrible sound? it sounded wonderful

[AgentJayZ]

@TAKR888

For the answer, look down to AAProductions09 ...

[helscreamer]

@TAKR888 Correct me if I'm wrong, but turbine blades are usually made of single crystal nickel... tapping them like that can cause dislocations to form in the crystal weakening it.

[AgentJayZ]

@helscreamer Modern turbine blades can be made of single crystals of high-nickel alloys. They are extremely heat resistant and tough. A light tap damages them as much as wiping your nose with Kleenex damages your face.

And this video is titled 'dropped into a turbine engine" for a reason... this is the compressor section, so the sound you hear is compressor blades being hit.

So you're not wrong, but a little off-center if aiming at this video.

[christianthebom]

@TAKR888 its terrible because that means that you have the fun job of dissembling a jet engine to pull out a cm long screw

[Typhoon792]

That was awesome!!! I'd do that just to hear that sound over and over again.

[AgentJayZ]

@Typhoon792 Then you need to check out Skenik's music at DARKJURNEY

[briansmobile1]

This is also why children aren't allowed in the repair hangar.  They would be drop'n all kinds O chit in there for the music of it! My daughter puts walnuts in my bikes tail pipes all the time just because she can.

[c25ole]

i love that last note

[thegodofwar3]

I wonder if birds sound like this :P

[vladnuke]

You're 10,000 feet in the air and suddently *sound of xylophone*. "wtf was that?" *Turbine explodes*.

[AgentJayZ]

@vladnuke

When the engine is running at power, and a small metal piece enters the intake, it sound more like a shotgun blast.

Don't ask me how I know that, because the footage is classified....

[LILBRAZ]

Nice. An old 5 million dollar scrap engine.

[nozzzil]

you don't want to hear this sound because it means something has fallen into the turbine causing it to blow up and crash

[ds12z]

Thats the sound of the DEVIL!!!No but really, its kinda funny thinking that a sound like that is something horrible.

[KingRadicalPhil]

hey i threw two quarters in wheres my dam chips ?

[scilenzer]

wait, what? it sounds harmless, why is it bad?

[AAProductions09]

@scilenzer I think because if you hear the sound it means something had fallen in the engine and you have to get it out which would take hours or even days

[flyershockey16]

why dont you wanna hear that?

[paxbelly]

beautiful disaster

[aval1998]

yay a new insturment! :D

[ITzjUsTME123]

i Have a question why is this so rare? Thanks XD

[AgentJayZ]

@ITzjUsTME123 It's a rare opportunity because jet engines are very expensive, and you don't often get to play around with one that's being scrapped.

From the 50s to the 70s, about 18,000 of these engines were built.

[AgentJayZ]

@ITzjUsTME123 Also, there is a procedure for taking this engine apart, but it did not work... the engine was so badly corroded, I had to use a plasma cutter to cut the turbine shaft.

That is an extremely rare occurence. Of the billions of YT videos, I'll bet there are less than 5 of aeroderivative turbine engines having their main shafts cut in half...

I'm betting a case of beer.

[zOMGLaserGunzPewPew]

How adorable.

[piasauevey]

that's a gorgeous sound

[korencek]

@dubravajecentar imagine that screw got stuck in there. that would mean a disaster. similar is in car engine. if you lose a scew in engine...

[yennera]

give praise to the mighty and great Odin!

[Viperlasson]

@dubravajecentar you can't simply flip a jet engine upside down a shake the screw out lol

[xliver4]

@dubravajecentar

because it means that you dropped a screw, and im guessing its a pain to get out

[guttdogg]

sounds like my doorbell

[AudioTandem]

sounds like some pinball game XD

[Nixtubing]

It's my new ring tone!

[aluzey]

so amazing!

[min7b20billion]

It ends on an F.

[eriquelefreak]

Better than porn. I suggest more videos like this.

[AgentJayZ]

@eriquelefreak On it!

[bluewhale18]

i wanna hear that sound

[AgentJayZ]

@bluewhale18

Check out DARKJURNEY, he made a song out of this sound...

[juniorloz]

junk? That's a frekin musical instrument!!!!

[tmaximsaferock]

i dont get it....why is it so bad?

[lvl100pokemans]

That was.....beautiful

[RudeLeaf]

Make a video of you dropping 100 screws/pennies into that thing.

[paintdataint]

oh my god, i have never worked on turbines, but from just work experience, this makes me cringe. what a nightmare. this is worse than nails on a chalkboard.

[cbatchler]

that sounded beautiful!

[mrsCerz]

it scared me, i expected a xylophone. ):

[greggermyster]

That was the most beautiful terrible sound I have ever heard!

[elpadroney]

is this he davesfarm version for airplanes?

[umakemeugly]

@elpadroney that was my first impression when the clip started lol

[AgentJayZ]

@elpadroney Wow... thank you for the compliment!. In a way, the "closer look" series was inspired by Davidsfarm...

[choreforthelost]

Terrifying. I've heard similar sounds from the magic and witchcraft that goes on in a Blackhawk engine.

Also, very rad experiment you did with Ghost Turbine. I enjoy.

[AgentJayZ]

@choreforthelost

The musical experiment was done by one of my good cyber-friends: his YT name is DARKJURNEY. Check it out...

[Zuggy]

But it sounds so pretty

[St8Solja]

WHAT A TERRIBLE SOUND!!!!

[stockedmuscle]

lmfao...i still dont understand....why do i not want to hear that sound?..

[jealey83]

@stockedmuscle If you hear that sound, it means you've dropped a screw/part into the engine and you have to recover it, which could take hours, if not days.

[stockedmuscle]

@jealey83 ok i understand thanks

[Paradise7D]

So, in 50,000 years, future scientists from the next civilisation will excavate this and say, "ooooo it makes fabulous sounds, this must have been a ritual instrument!!"

[AgentJayZ]

@Paradise7D In 50,000 years?

Any human encountering a stainless steel engine part will probably say "Uuughhh",

and think wordlessly: " sharp! - shiny - taste bad... not useful."

[rxvexe]

@AgentJayZ What exactly happens when someone does accidentally do this? Do they have to take apart the whole turbine just to find the screw before they can turn it back on?

[AgentJayZ]

@rxvexe

No matter what it takes, the dropped part must be recovered.

With luck, you can try turning the rotor slowly to help the part fall all the way out.

If that doesn't work.... well, you're looking at several man-days of work to take the engine apart.

Then a couple more just to get back to where you were when the part was dropped in.

Supervisors and other boss-types really do not like this, so you're gonna hate the process.

[TheArfdog]

@AgentJayZ I think you went the wrong way in time

[AgentJayZ]

@TheArfdog I think you are being more optimistic than me...

[TheArfdog]

@AgentJayZ haha yeah. I fully believe humans will be in another galaxy in 50,000 years. And will have figured out what came before the Big Bang. Perhaps they will be harnessing the full power of a star to do god knows what.

[AgentJayZ]

@TheArfdog

That is very optimistic. It would really be nice if such things were to happen.

[jcpro]

@Paradise7D hhahah i always think the same!

[Derail07]

@Paradise7D - Everyone on earth will be dead in 50,000 years. Mankind will destroy themselves

[SpecklePattern]

@Derail07 I also think we will, but its not about that. Its about how many turbines and turbos we can make in that time ;-)

[vylkyl]

@Paradise7D now that's funny HA!

[gigimanjo]

@Paradise7D HAHA That's a good idea !!!!

[tdurden664]

@Paradise7D the human race will be extinct in about 200-500 years. 50,000 years....LOL

[Ishida4o8]

@tdurden664 200-500 years? You're joking right?

[AgentJayZ]

@Ishida4o8

tdurden664 gets my vote for being bang on the timeline.

The screaming will start in less then 200, and by 400, it'll just be the chirping of birds and the rustling of leaves.

[Bergstaller01]

Lemme guess...time expired? lol

[AgentJayZ]

@Bergstaller01 Yes. 20 years of infrequent running as a backup power supply since last overhaul, and 20 years of outdoor storage since retiring from that application.

[mytmousemalibu]

Jay was that the last compressor stage we are seeing down into? Pretty rusty in there! The holes around the perimeter, fuel nozzle holes? Any thing else sopposed to be in there right before the turbine stage? I.E. thats where the flames are?

[AgentJayZ]

@mytmousemalibu

The outlet guide vanes are just visible. They are just after the 17th stage compressor stators in Newer LM1500s, but in this one, they are called "17th stage and OGV" vanes.

Holes you see are for cooling air. The midframe is what GE calls the diffuser, so this is just before the fuel nozzles and the combustors.

[AgentJayZ]

@mytmousemalibu

Just took another look, and you are right! the holes around the outside, which you can see through are indeed for the fuel nozzles. They do project a few inches reaward ( up in this vid), and then spray fuel into the combustors,

The fire starts an inch or so downstream of the tip of the nozzles.

[mytmousemalibu]

@AgentJayZ Ah ok! All clear now! Neat thing to see and hear! Thanks for sharing, great vid as always!

[Xx69roadrunnerxX]

Wow, that was an awesome sound...that I would never want to hear! What happens when some foreign object makes its way into a turbine engine in terms of getting the object out? Magnets and luck? How much damage would that do to a running engine?

Did you just torch the turbine shaft right off?

[AgentJayZ]

@Xx69roadrunnerxX

Well, the reason it's a sound you don't want to hear is that if whatever you dropped in can't be worked out, it requires dissasembly to get it out.

Tearing down a LM1500 without doing damage and with keeping allthe parts organized takes three people two days if they don't run into snags.

There is nothing that can reach into the compressor, so gently rotating it back and forth is your only option.

[AgentJayZ]

@Xx69roadrunnerxX

The screw I dropped in, if into a running engine, may cause significant damage to the compressor, requiring engine disassembly and repair... or it may cause massive damage, requiring replacing the entire compressor rotor's blading.

Tens of thousands or hundreds of thousands, depending on your luck.

[Xx69roadrunnerxX]

@AgentJayZ Did turbine engines use to be cleaned with walnuts shells by pooring them into the running engine? Then they (U.S. military I tihnk) found it to be harzardous.

[AgentJayZ]

@Xx69roadrunnerxX That was done many years ago with the simpler turbojets in the 50's.

Those engines are like a Briggs& Stratton compared to MotoGp bike engine.

It was supposed to be a quick way to mildly abrasively clean the compressor.

There are a lot of pathways for the use of compressor bleed air in modern engines, and these would get clogged with bits of shell.

You can burn up an engine that way.

[AgentJayZ]

@Xx69roadrunnerxX The turbine shaft can not be cut with an acetylene torch.

Hey, we've tried for half a day and it gets discolored but will not be cut.

The melting and cutting you see was done by me with a plasma cutter.

It cut through that hi-temp, hi-strength alloy like it was play-dough.

I was impressed.

[Xx69roadrunnerxX]

@AgentJayZ Huh, I was about to say a torch solves most problems, but I not this one. Cool fact to know!

Just curious, but whats the average tempurature of an LM1500 running (internal parts and exhaust gas) ? At full engine load? Maximum safe temp.?

[AgentJayZ]

@Xx69roadrunnerxX There's no easily available data on internal temps, except for EGT. Exhaust Gas Temp, and it is measured after the last stage of the 3-stage turbine. The hottest part of the engine will be the first stage tubine-entry nozzles.

Actually the gases flowing thru them, because they are cooled by air ( at over 600F ) flowing thru their many perforations.

Jet fuel burns at over 3,000F, and the turbine vlades and nozzles start to melt at 1600 or so. Max EGT is 1050F or so.

[AgentJayZ]

@AgentJayZ

The secret to how turbine engines don't burn up is cooling air.

Only about 15 - 20% of the air entering a non-bypass turbojet is used to burn the fuel. The rest is used for cooling - some of it is fed thru passages in the nozzles and turbine blades, and most of it is supplied around the combustor liners, where it flows inward thru holes to mix with the burning gases.

[Wonkabar007]

Sounds like a wind chime!

[ReielSC]

That sound is just awesome. It sounds so funny but the dread of hearing that would be awful. Gave me a laugh! :D

[40150]

That's awesome m8 :D

thanks for the share!

[mytmousemalibu]

WOW! Thats somthiing else! musical turbines! I can understand how awful that would be to hear as a tech! Least you have a musical warning that FOD has happened! As an auto tech, not normally much of a sound to somthing going in an intake port or likness on a car! Even if you know it happens.... Thank god for borescopes, magnets and compressed air!

[SoniaStrumm55]

I haven't got this far in my classes yet so I only know the basics of a jet engine at the moment. I just started on turboprops today but I can't wait till I get to turbine engines :-)

5/5 stars by the way :-)

[AgentJayZ]

@SoniaStrumm55 Thanks!

I have seen a crew of five techs freeze with looks of dread on their faces when one of them flipped a tabwasher in the air, which fell into of a freshly built Avon.

Very luck that it only took an hour to get it to go all the way through.

PS: a turboprop is a turbine engine...