Nitrospazzz
10-05-2006, 04:27 PM
I had a tip over a few weeks ago at pretty low rotor rpm. Replaced flybar and did a test spoolup. The blades were horribly out of track (few inches) so I put in a new spindle and test flew it the other day. Blades a bit out of track but had the tail box rotate on me before I could track them in. Re-drilled and tapped the tail gearbox to 4mm so it won't rotate on me again and test flew it today after waiting way too long on tail blades.
Bad vib because the blades were out of track, got them tracking perfect now. But there is a horrible vibration, the whole heli shakes violently, its just a big blur. The tail and main blades are tracking good. The main blades look smooth in flight while the rest of the heli is shaking like mad. Is there something I should look for in the tail or elsewhere that would cause this bad of vibrations? I have a big AP shoot this weekend lined up but theres no way I could or would want to put a camera on it right now, vibrations just too bad.
Some things I have thought of and a few I have checked:
Blade balance - checked main and tail they are spot on
Tail gear mesh - it seems to rotate easily, might be this
Clutch and Clutchbell - had to mess with this after the crash, not sure how perfect it must be aligned
Can't really think of anything else.
Bad vib because the blades were out of track, got them tracking perfect now. But there is a horrible vibration, the whole heli shakes violently, its just a big blur. The tail and main blades are tracking good. The main blades look smooth in flight while the rest of the heli is shaking like mad. Is there something I should look for in the tail or elsewhere that would cause this bad of vibrations? I have a big AP shoot this weekend lined up but theres no way I could or would want to put a camera on it right now, vibrations just too bad.
Some things I have thought of and a few I have checked:
Blade balance - checked main and tail they are spot on
Tail gear mesh - it seems to rotate easily, might be this
Clutch and Clutchbell - had to mess with this after the crash, not sure how perfect it must be aligned
Can't really think of anything else.