Getting back to the original question...

Twin-engine turbine powered commercial aeroplanes have an "in-flight
propulsion system shutdown rate" of approx 0.02 per 1000 hours.
(Source: ICAO ETOPS approval papers)

You will have to work the rest out. That's all I can help you with.

Regards


"KenG" wrote in message
om...
FWIW, in the past, I worked on a C-135 that had provisions for 6
engines. The two extras, were for generating extra electrical power.

Bertie the Bunyip wrote:

"Von Fourche" wrote in
ink.net:



What are the chances of one engine going out in a 747 during
flight?


Depends


I'm not talking about an engine falling off the jet, but just stop
working. Also, what are the chances of two, three, and four engines
going out? What about the two jet engines on a 777?



Remote.


Bertie


?Just wondering

what the odds were.

Thanks!

"MMO" wrote in message ...
Getting back to the original question...

Twin-engine turbine powered commercial aeroplanes have an "in-flight
propulsion system shutdown rate" of approx 0.02 per 1000 hours.
(Source: ICAO ETOPS approval papers)

You will have to work the rest out. That's all I can help you with.

That's just the minimum standard that 180-minute ETOPS certified
aircraft need to meet. In actual practice, engines exceed this
standard.

Ace

Ace Pilot wrote on Mittwoch, 1. Oktober 2003 21:39:

"MMO" wrote in message
...
Getting back to the original question...

Twin-engine turbine powered commercial aeroplanes have an "in-flight
propulsion system shutdown rate" of approx 0.02 per 1000 hours.
(Source: ICAO ETOPS approval papers)

You will have to work the rest out. That's all I can help you with.

That's just the minimum standard that 180-minute ETOPS certified
aircraft need to meet. In actual practice, engines exceed this
standard.

Ace

To get the rate on aircraft level, you have to square the single engine
IFSD rate and multiply it with the average flight length for the
aircraft type.

Syiad

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