f.pier
Posts: 1405
Joined: Fri Aug 25, 2000 2:50 am

Do Airliners Engines Live As Long As The Plane?

Sun Aug 11, 2002 8:10 am

A plane lives for about 20/30 years, but in this long time are the engines changed with new ones or their life is as long as the whole airliner life (on average)?
 
Mr AirNZ
Posts: 861
Joined: Sat Feb 02, 2002 10:24 am

RE: Do Airliners Engines Live As Long As The Plane?

Sun Aug 11, 2002 8:41 am

I cannot tell you how long an engine will last but I can assure you they do not last anywhere near as long as the aircraft itself. In an aircrafts lifetime it will experience numerous engine changes. Prehaps someone could give some figures?
 
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wilcharl
Posts: 1161
Joined: Sun Jun 25, 2000 11:19 am

RE: Do Airliners Engines Live As Long As The Plane?

Sun Aug 11, 2002 10:08 am

they do not last as long as the plane... that means when i see a 707 flying... those engines are still in production. I think not... an engine is overhauld at its TBO, if you want a detailed answer i would suggest asking the tech-ops forum, but do a good thorough search before you do
 
jhooper
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Joined: Thu Dec 13, 2001 8:27 pm

RE: Do Airliners Engines Live As Long As The Plane?

Sun Aug 11, 2002 1:06 pm

For some reason, the number 8,000 hours pops in my head as a good TBO for many jet engines.
Last year 1,944 New Yorkers saw something and said something.
 
Stratofish
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Joined: Mon Sep 24, 2001 6:38 am

RE: Do Airliners Engines Live As Long As The Plane?

Sun Aug 11, 2002 11:25 pm

You can not clearly define how long a plane "lives". After about 20 years of service almost every part will have been replaced with a new one (except the fuselage). Same goes with the engines.
The Metro might be the Sub(optimal)way
 
MagicMan_841
Posts: 177
Joined: Sat Jan 19, 2002 8:12 am

RE: Do Airliners Engines Live As Long As The Plane?

Sun Aug 11, 2002 11:34 pm

TBO = Time Between Overhaul  Smile/happy/getting dizzy

M@g!¢  Yeah sure
 
BR715-A1-30
Posts: 6525
Joined: Thu May 30, 2002 9:30 am

RE: Do Airliners Engines Live As Long As The Plane?

Mon Aug 12, 2002 12:55 am

The 717 has already had a couple of engine changes. So that should answer your question right now.
Puhdiddle
 
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wilcharl
Posts: 1161
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RE: Do Airliners Engines Live As Long As The Plane?

Mon Aug 12, 2002 8:01 am

an engine change does not warrent a new engine. to keep it simple in this forum lets look at a car engine (a recripciating v-8) when the enigne fails at the end of its useful life it is rebuilt or "remanufactured" (remanufactured often constittues a higher level of new parts etc..) the cylinder walls are machined as are the heads. the valves are resurfaced, new pistons are installed. new bearings all the way around. all "wear items" are replaced it is not a new engine... now an aircraft engine to be considered remanufactured and have a new log (we are talking about recips here in GA) it requires the engine to be factory remanufactured and has a certain criteeiea (a matitutuck engine is not "remanufactured") Pratt stoped making the JT8-D sometime back. wehn those engines die. they will be overhauled and continued to use over and over and over again unless there is a catastrophic failure or the supply of servicable parts runs out
 
FDXmech
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Joined: Sun Mar 19, 2000 9:48 pm

RE: Do Airliners Engines Live As Long As The Plane?

Mon Aug 12, 2002 8:44 am

Do Airliners Engines Live As Long As The Plane?

Yes, though not necessarily on the same airplane.
You're only as good as your last departure.

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