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-   -   Twin Turbine, Single engine performance & safety (https://www.pprune.org/rotorheads/265413-twin-turbine-single-engine-performance-safety.html)

Heli-phile 30th June 2009 08:42

Single Engine versus Multi Engine Helicopter(safety)
 
OK Its the old chesnut reborn. Last week I overheard a pilot waxing lyrical to some VIP passengers that Multi engine helicopters only had a 2% safety improvement over Single engine helicopters!! so for the extra cost the Multi engine was just a waste of another US$1.5 million

I would love to know the figures upon which this was based.
Are they comparing like with like?? only types I could think of would be AS350 v AS355 or A109 power v A119 Koala.

I fly both multi and single machines and I always feel happier in the twin, not just because of the extra donkey, but also the extra generator, hydraulic system Etc. Am I wrong to feel "safer" in the twin. what are the figures on this??

Please don't post the usual "well they still share the transmission/tail rotor/fuel source". that does not really prove one type over another rather its an event which is equally likely in either!!
just deal with the differences and statistics to support/refute multi engine safety advantage .

Thanks

Phil77 30th June 2009 08:54

Heli-phile: In addition to this thread, where your post has been moved to, here is another (now locked) discussion about twin-engine/Cat A reliability and statistics you might find interesting:
http://www.pprune.org/rotorheads/154...oid-curve.html


Phil77

Thanks for the link: the thread is now unlocked.

Splot

height is good 30th June 2009 13:48


Originally Posted by Blind Bob
Throw out the crew and she would be able to hover taxi back to the hangar


BB Me thinks you are having a dig about the weight of your crew:}


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