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450 wiggles

Old 06-10-2010, 07:12 PM
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Default 450 wiggles

Have a question regarding my T-450 wiggling (not tail waging).

Ever see someone using a Hoola Hoop?

My 450 in a hover will oscillate . I have replaced the main shaft, FS, checked blade alignment, and balance, checked the tail assembly for bent shaft and out of balance blades. . When looking tail on (down the boom) I can see the rotor tail oscillate in a circle and the body wiggling. The main blades are in track and are not moving.

Any Ideas???

Larry

Old 06-11-2010, 03:39 PM
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Default RE: 450 wiggles

Too low head speed?
Worn out feathering shaft rubber grommets?
Warped man gear?
Proper tail belt tension?
Worn out main shaft bearings?
Old 06-11-2010, 05:02 PM
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Default RE: 450 wiggles

Thanks for the info. I replaced the main rotor head (no physical damage) and now wiggle gone...
Everything else was new...

Thanks

Larry

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