Brazil Rescue One undergoes a bit of ground resonance
A rescue helicopter undergoes a bit of a shattering case of ground resonance in the northern state of Para.
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Added: Feb-23-2012
By: Sociopath
In: WTF, Other Entertainment, Other
Tags: Accident, Helicopter,
Marked as: approved
Views: 3879 | Comments: 21 | Votes: 3 | Favorites: 3 | Shared: 0 | Updates: 0 | Times used in channels: 2
By: Sociopath
In: WTF, Other Entertainment, Other
Tags: Accident, Helicopter,
Marked as: approved
Views: 3879 | Comments: 21 | Votes: 3 | Favorites: 3 | Shared: 0 | Updates: 0 | Times used in channels: 2
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CNN reports that Michael J Fox failed his 6th attempt to pass his pilot exam in a helicopter.
Posted Feb-23-2012 Bycougar58 (197.64) cougar58 View Channel Send Message
(5)
Pedro will only be cleared to fly a desk after that shambles
Posted Feb-23-2012 ByEnzian (69.70) 
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(3)
Heard of it before but never read up on it. For anyone else. I guess it can happen quite rapidly. Does not matter if it just had an inspection or if it's a rust bucket.
Ground resonance happens in helicopters with lead-lag hinges. It occurs only on the ground. It starts when the blades "bunch up" on one side of the rotor disc where they generate an unbalanced centrifical force that gets in phase with the natural frequency of the aircraft rocking on it's landing gear. Modern helicopter More..
Posted Feb-23-2012 Bymdf54082000 (180.60) mdf54082000 View Channel Send Message
(1)
Nice Targa top, but so '80's.
Posted Feb-23-2012 ByBattlefresh (106.52) 
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umm chop the damned throttle or pick up collective as soon as any sign of ground resonance is felt.....
Posted Feb-23-2012 Bycopterguy6541 (224.40) 
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The pilot must have been filling his shorts the whole time!
Posted Feb-23-2012 ByMAKMAK (2397.50) MAKMAK View Channel Send Message
(1)
Was that a kit ?
Posted Feb-23-2012 Bylauriebhoy (1249.30) 
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@lauriebhoy
It's definately a kit of parts now
Posted Feb-23-2012 ByEnzian (69.70) 
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(3)
the wheel weights were slightly out by a few grams
Posted Feb-23-2012 Byjelqmasterfunk (82.50) 
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3rd world heli
Posted Feb-23-2012 Bymattb1974 (1062.38) 
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@mattb1974
It was manufactured in France, not Detroit
Posted Feb-23-2012 ByToilet-Chain (50.30) 
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(2)
Don't think it was air worthy to begin with. I blame the ground mechs...or lack there of
Posted Feb-23-2012 ByAiredale (2596.96) 
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@Airedale
Email your findings to Brazil's air accident enquiry board, Im sure they will be all over the opinions of someone watching the event on a pc
Posted Feb-23-2012 ByToilet-Chain (50.30) 
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(2)
HAHAHAHAHAHAHAHAHAHAAHAHAH
Posted Feb-23-2012 ByDinmorlolmanden (69.40) 
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Transformer??
Posted Feb-23-2012 Byossiemac (41.54) 
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hmmm..ejection seats on a helicopter.
Posted Feb-23-2012 Bycougar58 (197.64) cougar58 View Channel Send Message
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that's pretty fucked up
Posted Feb-23-2012 ByMeLowPing (309.78) MeLowPing View Channel Send Message
(0)
Looks like the lead-lag dampeners are not setup or tuned properly.
Posted Feb-23-2012 ByPenguinister (478.20) 
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