The TRC amazing jet engines thread

Tomcat · 22-12-09, 15:23

As I know some of us are lucky enough to work with flying machines and many more of us simply enjoy a loud lairy machine, I thought it might be fun to dig out some of the better clips and pics of not complete aircraft but engines, those remarkable power plants whose every turbine blade puts out as many horsepower as a London bus.

I'll start with a few nutters running old engines in the backyard, followed by what can happen when it doesn't go according to plan....

What could ever go wrong?

Sometimes the bird wins.....

Sometimes it loses.....

2ptjoe · 22-12-09, 19:39

Quality thread TC , i love jet engines. The noise , power every thing involved in them.
I want my own at some point but i need to suss out how they really work . I've got the basics but you can build your own jet from old turbos , as shown, if you get it right.

Mr. Dazzle · 23-12-09, 10:15

Quote:

Originally Posted by Tomcat

Sometimes the bird wins.....

Isn't that a blade off test? There's one coloured blade on the fan, after the boom there's no coloured blade...

Tomcat · 23-12-09, 18:23

Quote:

Originally Posted by Mr. Dazzle

Isn't that a blade off test? There's one coloured blade on the fan, after the boom there's no coloured blade...

Probably yes. Birds don't tend to do that much damage anyway. Lose one of these babies though and it'll rattle yer fillings

2ptjoe · 23-12-09, 18:52

Quote:

Originally Posted by Mr. Dazzle

Isn't that a blade off test? There's one coloured blade on the fan, after the boom there's no coloured blade...

Yes , i think your spot on.
When a new engine is designed doesn't the maker have to submit an engine for this test . The thing , or things they look for is basically that should a motor lose a blade then the rest of the motor kind of keeps it's self together with out bits flying off and through into the wings.
Not a cheap test .

Tomcat · 23-12-09, 19:54

Here's a birdstrike test. The white stuff flying about is expanded polystyrene, they pack the birds in it to make them the right shape for the bird gun.

Little known fact, because the birds have to be an exactly known weight for the tests RR used to buy out-of-date chickens from Berni Inns

chillitt · 23-12-09, 20:00

Jet engines- schmet engines! What you want is a nuclear ramjet engine!
.:SonicBomb:. - The Flying Crowbar

(Caution site rates 7.4 on the tinfoil hat scale)

Big Pete · 23-12-09, 23:54

FBO, as its known in the trade, is possibly the harshest engine test going, and it puts the shits up people. It totaly destroys the engine, so its not something you want to get wrong. All debris has to go either forwards or backwards, none can exit the nacelle, the slowed down camera stuff shows the casing making some extremely strange shapes

. However, if you lose a disc, pray that it goes down, cos it will happily go through the nacelle, a fuselage and the rest of the plane without slowing down noticeably.

Mr. Dazzle · 24-12-09, 08:33

Quote:

Originally Posted by Big Pete

FBO, as its known in the trade, is possibly the harshest engine test going, and it puts the shits up people. It totaly destroys the engine, so its not something you want to get wrong. All debris has to go either forwards or backwards, none can exit the nacelle, the slowed down camera stuff shows the casing making some extremely strange shapes

. However, if you lose a disc, pray that it goes down, cos it will happily go through the nacelle, a fuselage and the rest of the plane without slowing down noticeably.

S'not just the engine though, it's one of the harhest tests for the whole aircraft...everything has to be desiged for violent shaking at 20-30Hz.

Sand and water injestions tests are quite impressive - can you imagine your car surviving swallowing this much dirt or water?

cheb · 24-12-09, 08:57

A general thanks to all for this.

Mr. Dazzle · 24-12-09, 10:29

While I was looking at those above videos I also found this footage of an A380 brake test...probably a good thing you can't see the wheels from the passenger cabin!

Tomcat · 24-12-09, 20:37

Quote:

Originally Posted by Mr. Dazzle

While I was looking at those above videos I also found this footage of an A380 brake test...probably a good thing you can't see the wheels from the passenger cabin!

Kinda OT from the engines but here's a real live RTO (rejected takeoff) test.

YouTube - Boeing 777 rejected take off (RTO)

And (ahem) how NOT to do it

YouTube - Ilyushin IL-18 Aborted take off

Blackvisor · 24-12-09, 20:59

Trumps · 25-12-09, 17:54

Quote:

Originally Posted by Tomcat

Sometimes it loses.....

I was working a hundred meters or so when that happened.

God thread TC.

I've always enjoyed working on RB211s, apart from the boring job of blade cleaning/re-covering in Molykote!

22-12-09, 15:23	#1
Tomcat Holiday Racer Join Date: Dec 2007 Location: Dahn sarf Posts: 14,836 Cash: £3435244 Blog Entries: 10 Thanks: 267 Thanked: 300/243	The TRC amazing jet engines thread As I know some of us are lucky enough to work with flying machines and many more of us simply enjoy a loud lairy machine, I thought it might be fun to dig out some of the better clips and pics of not complete aircraft but engines, those remarkable power plants whose every turbine blade puts out as many horsepower as a London bus. I'll start with a few nutters running old engines in the backyard, followed by what can happen when it doesn't go according to plan.... What could ever go wrong? Sometimes the bird wins..... Sometimes it loses.....
	Never break more than one law at a time, and never carry more grass than you are willing to eat.

22-12-09, 19:39	#2
2ptjoe At Work Join Date: Nov 2008 Posts: 1,892 Cash: £2094000 Thanks: 60 Thanked: 48/38	Re: The TRC amazing jet engines thread Quality thread TC , i love jet engines. The noise , power every thing involved in them. I want my own at some point but i need to suss out how they really work . I've got the basics but you can build your own jet from old turbos , as shown, if you get it right.
	Last edited by 2ptjoe; 22-12-09 at 19:57.

23-12-09, 19:54	#6
Tomcat Holiday Racer Join Date: Dec 2007 Location: Dahn sarf Posts: 14,836 Cash: £3435244 Blog Entries: 10 Thanks: 267 Thanked: 300/243	Re: The TRC amazing jet engines thread Here's a birdstrike test. The white stuff flying about is expanded polystyrene, they pack the birds in it to make them the right shape for the bird gun. Little known fact, because the birds have to be an exactly known weight for the tests RR used to buy out-of-date chickens from Berni Inns
	Never break more than one law at a time, and never carry more grass than you are willing to eat.

23-12-09, 20:00	#7
chillitt Really Bored Join Date: Jan 2008 Location: warwickshire Posts: 2,711 Cash: £1273400 Thanks: 27 Thanked: 68/55	Re: The TRC amazing jet engines thread Jet engines- schmet engines! What you want is a nuclear ramjet engine! .:SonicBomb:. - The Flying Crowbar (Caution site rates 7.4 on the tinfoil hat scale)
	“The Knave abideth.” I dare speak not for thee, but this maketh me to be of good comfort; I deem it well that he be out there, the Knave, being of good ease for we sinners. I hope he proveth well in the tourney.

23-12-09, 23:54	#8
Big Pete Really Bored Join Date: May 2008 Location: rugby Posts: 3,231 Cash: £2491900 Thanks: 26 Thanked: 293/241	Re: The TRC amazing jet engines thread FBO, as its known in the trade, is possibly the harshest engine test going, and it puts the shits up people. It totaly destroys the engine, so its not something you want to get wrong. All debris has to go either forwards or backwards, none can exit the nacelle, the slowed down camera stuff shows the casing making some extremely strange shapes . However, if you lose a disc, pray that it goes down, cos it will happily go through the nacelle, a fuselage and the rest of the plane without slowing down noticeably.
	...at least I got chicken. Trust me, I'm an engineer


These advertisements are reduced in size when you become a registered member and removed when you become a TRC Supporter / Sponsor member.

24-12-09, 08:57	#10
cheb Behaving like Johann Join Date: Dec 2007 Location: South Uist Posts: 5,139 Cash: £2930430 Thanks: 171 Thanked: 152/125	Re: The TRC amazing jet engines thread A general thanks to all for this.

24-12-09, 10:29	#11
Mr. Dazzle Really Bored Join Date: Jun 2008 Location: Milton Keynes Posts: 3,921 Cash: £1704400 Thanks: 26 Thanked: 36/32	Re: The TRC amazing jet engines thread While I was looking at those above videos I also found this footage of an A380 brake test...probably a good thing you can't see the wheels from the passenger cabin!

24-12-09, 20:59	#13
Blackvisor Not Much To Do Join Date: Feb 2008 Location: UK and Swissie Posts: 764 Cash: £1951800 Thanks: 2 Thanked: 11/8	Re: The TRC amazing jet engines thread

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The TRC amazing jet engines thread

As I know some of us are lucky enough to work with flying machines and many more of us simply enjoy a loud lairy machine, ...