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dvs1 -> Head wobble (11/4/2012 12:33 AM)
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I'm sure this has been gone over in the past but I have the same problem on my 2 helis, one is a raptor 60 v2 and the other is a trex 450 sport. The problem is when I spool up the head will shake the whole heli at around midway on the spool up rpm then go away, it is fine when taking off and during flight. The raptor only does it on spool up but the trex does it both on spool up and down. The raptor I'm not too concerned about because it only does it briefly and isn't violent but the trex really concerns me because it almost acts like it will tip over during spool down from shaking the little heli. A little background info, the raptor has never been crashed. The trex didn't do it till I crashed and after replacing the main, feathering, and flybar shaft it does it now. I cannot see any problem parts, and both helis track fine and blade grips are not too tight on the mains or the tail.
Can someone give me an idea of what is going on and where to look to fix this problem? Thanks.
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