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-   -   twin autorotation. (https://www.pprune.org/rotorheads/341194-twin-autorotation.html)

Karl Bamforth 3rd September 2008 04:28

A couple of years ago an RAF Puma pilot was on a check ride with instructor.

The instructor pulled both engines to ground idle to simulate double engine failure.

At the pre determined height above the ground, the instructor said "OK thats low enough, climb away".

As the pilot pulled collective it quickly became apparent that both engines were still at idle.

They managed to get a mayday call out just before contacting the ground, it rolled over suffering severe damage but all crew scrambled clear with minor injuries.

oldbeefer 3rd September 2008 09:34


Originally Posted by Karl Bamforth (Post 4369785)
As the pilot pulled collective it quickly became apparent that both engines were still at idle.

So the crewman really IS only there to open and close the doors!

soggyboxers 3rd September 2008 10:34

I've done them many a time for training in the past, but nowadays we tend to just do them in the simulator as it's less potentially dangerous and destructive.

It's funny that despite having done many engine-off landings for training purposes in single engine helicopters I've never had an engine failure in a single, and whilst most of the time we don't train for total engine failures in multi-engine machines, I've suffered 3 double engine failures (none in the last 30 years though, so maybe things are getting better) :}

Brian Abraham 3rd September 2008 11:18


I've suffered 3 double engine failures
Tell us more soggy. Although you seem to lead a charmed life thus far remind me to never fly with you. :p

tecpilot 4th September 2008 18:14


About 10 years ago we had gone to Germany for a few days refresher training on the 105 simulator at Donnerworth(excuse spelling) and on completion the guys took the five of us up for full auto experience. over the airfield they just chopped both throttles and away we went. they didn't know us from adam. Excellent day they auto just like a gazelle, we remarked that we could just imagine someone coming here to UK and being allowed to do that. Not!
Have down more than hundred full (training) autos on BO 105 without problems, all i could say is the "brick !!!!house" is doing such autos without problems. BTW, BO105 and BK117 are the last twins i have done full touchdown autos. At first the desk jockeys stopped it on BK117 some years ago and meantime we are doing no twin touchdown autos anymore. Yeah, thats the right way to train the young pilots... Found some younger pilots in the last time without any touchdown auto experience. Seems to me this group is growing?


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