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heliduck
17th Aug 2012, 22:21
Helicopter Ground Resonance - YouTube

I had the TV going in the background the other day when this caught my eye. A quick google & it had obviously caught other peoples eye years ago but is well worth refreshing in our memory. I've never experienced ground resonance & hope I never do, it happens very quickly!!

MightyGem
17th Aug 2012, 22:29
Good save by the pilot. Taking off with a front door flapping like that is most un-natural.

SilsoeSid
18th Aug 2012, 09:05
A quick google & it had obviously caught other peoples eye years ago but is well worth refreshing in our memory.

Yep, we've not seen this vid here since 23 Feb 2012 :rolleyes:

Thread - http://www.pprune.org/rotorheads/478022-as350-ground-resonance-video.html#post7044595

By contrast .. in the clip below (which has done the rounds on PPRuNe I know) the onset occurs at 40 seconds. By 42 seconds the driver has the bird off the ground (probably delayed by the fact that he may have been considering the open door).