Something Went Wrong [Gif]

Submitted by: MarthFador 2 years ago in Weird

This happened because the rotational blade hinge, which is a stabilizer between the flange, just kidding I have no idea
There are 16 comments:
Male 1
HI HELOCOPTER MECHANIC HERE THIS WAS MOST LIKEY THE RESULT OF EITHER A POORLY DYNAMICALY BALANCED DRIVESHAFT OR A POORLY WEIGHTED ROTORHEAD/ROTOR BLADES WHICH GIVEN THE SPEED THAT DRIVE SHAFTS AND ROTOR HEADS SPIN COULD EASILY CAUSE THEASE PROBLEMS TRUST ME IVE SEEN IT IN PERSON LOOK HIGHLY SIMILAR TO THIS.
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Male 1,253
Piston broke. Sure am!

Gearbox blew. Always happens on cheap foreign choppers. The drive plate gets white hot in a hover, especially pitch and roll landings.
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Male 1,243
@Freddy: No harm mate. Just that response is wearing thin to us, you and me, Americans.
I don`t see it being resonance in the longer video. Resonance is not the issue that most give it. Yes there are frequencies in everything, especially fast spinning rotor blade, but this looks like an unbalance issue. As I am not trained in this type, I don`t know the ins and outs of them. I do remember the first time I landed on the back of a 378` cutter at sea and the resultant stain in my flight suit. Besides the 3 axis you are dealing with in the aircraft you have to add the speed of the ship and it`s pitch and roll in 3 dimensions. Just when you think you`ve got it, a wind vortice off the super structure will whip around the fantail and slide you around. Carrier landings are hard but they have nothing on a chopper landing on the back of a ship.
This guy did good to survive. This could have had a real bad ending.
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Male 1,293
Here is a far longer video:

www.liveleak.com/view?i=17a_1383577760

Sort of looks like ground resonance although I am not convinced. Maybe a trainee pilot getting a touch down wrong (it starts swinging just before that second touchdown) then bringing the collective up a little but not enough to lift again; it looks very light on the wheels compared to earlier in the video. When it is light on its wheels of course the resonant frequency changes, causing ground resonance.

However the instructor should then have lifted, solving the problem.

The alternative is that they had a control problem just before that second touchdown. Something broke causing imbalance in one of the rotors and that wild swing. When they managed to get it down the blade pitch could not be brought to zero and the imbalance caused vibration.
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Male 122
I`d say "ground resonance". Which can happen to any helicopter, no matter who built it. Google the term for more of these.
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Male 1,292
i think it needs more windshield wash
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Male 11,739
@scheckydamon - Here is something to help you understand my comment.

sar·casm [sahr-kaz-uhm]
noun
1. harsh or bitter derision or irony.
2. a sharply ironical taunt; sneering or cutting remark: a review full of sarcasms.

:-P }-)
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Male 1,243
The Kamov Ka-31 (NATO reporting name `Helix`) is a military helicopter developed for the Soviet Navy and currently in service in Russia, China, Cuban Navy and India in the naval airborne early warning role. So no Freddy it`s NOT American made. We make some of the best and fastest birds there are here in the USA. Get over yourself.
What you see is the two counter rotating blades out of sync causing an imbalance.
As an OLD!! USCG copter pilot, Sikorsky 55 and 52 variants, we called that a Jesus nut failure. If the big nut on the rotor head came off in flight, you got to see Jesus.
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Male 4,431
Pretty sure it was Solid Snake. That`s exactly the sort of poo he likes to pull. ;-)
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Male 528
speed wobble

source:pro skateboarder knowledge
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Male 40,326
Temper Tantrum.
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Male 7,774
Angry helicopter is angry
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Male 13,630
Something was out of kilter for sure
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Male 15,832
Just a guess, but I`d say he broke off part of one rotor while landing, thus throwing it off balance.
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Male 11,739
Clearly American made.
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Female 1,004
Link: Something Went Wrong [Gif] [Rate Link] - This happened because the rotational blade hinge, which is a stabilizer between the flange, just kidding I have no idea
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