Ground Resonance
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MG - not unusual for a skidded eurocopter.
The 350/355 and Alouette II/Lama all have established histories of ground resonance given the right provocation. I've also seen a Gazelle do it.
Shame this event was not caught in time.
OH
The 350/355 and Alouette II/Lama all have established histories of ground resonance given the right provocation. I've also seen a Gazelle do it.
Shame this event was not caught in time.
OH
Last edited by OvertHawk; 25th Feb 2012 at 08:25. Reason: spelling
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Already being discussed on this thread in Rotorheads
All the pilot had to do was pull some collective and lift clear of the ground, or kill the donk and apply the rotor brake. Instead he seems to have done nothing and so risked lives including his own and trashed a perfectly good helicopter.
All the pilot had to do was pull some collective and lift clear of the ground, or kill the donk and apply the rotor brake. Instead he seems to have done nothing and so risked lives including his own and trashed a perfectly good helicopter.
Anyone who went through pilot training in the late '60s / early '70s would undoubtedly have seen the ancient training film 'Helicopter Mountain Flying' - there was a very graphic clip of an S-51 getting caught in ground resonance before thrashing itself to bits.....
is surely an oxymoron 
?
...a perfectly good helicopter...
?
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Quote:
...a perfectly good helicopter...
is surely an oxymoron
?
...a perfectly good helicopter...
is surely an oxymoron
?
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Quote:
Quote:
...a perfectly good helicopter...
is surely an oxymoron ?
You wouldn't say that if you were floating on the briny with a long row home as the only alternative
Quote:
...a perfectly good helicopter...
is surely an oxymoron
? You wouldn't say that if you were floating on the briny with a long row home as the only alternative
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If you have never seen them this is a chinook tearing itself apart in tests, the rear view is erm interesting to see the effect of it.
Side
Rear
Side
Rear
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a chinook tearing itself apart
