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Aircraft Maintenance TroubleShoot > Helicopter Main Rotor

Lateral Vibrations in hover or forward flight

1. Spanwise out-of-balance. Dynamically balance with tape.
2. Cordwise out-of-balance. Dynamically balance by sweeping blade.
3. Hub rock. Adjust equalizer links.

F4F Wildcat WWII Recognition Silhouette

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Disclaimer: sacskyranch.com contains abundant information relating to aircraft maintenance. The information provided is not intended to supercede or supplement the F.A.A. approved maintenance and/or operator’s manuals. Those F.A.A. approved manuals must be utilized when performing maintenance and/or operating aircraft.