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A common
problem with RC helicopters is vibration. Excessive vibration makes hovering
more difficult, uses up power, causes "gyro drift" and increases wear and tear.
Several things can cause vibration, which makes it difficult to identify its
source. Below are some of the possible causes:
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Unbalanced rotor blades.
The blades should be balanced, often done with tape.
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Crooked rotor blades.
The blades should be at right angles to the flybar.
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Rotor blades too tight.
If the blades are too tight, they can't self-adjust from centrifugal force.
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Rotor blades are too
loose.
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Main gear missing teeth.
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Flybar paddles
misaligned. The paddles should be nearly parallel to the swashplate,
preferably +5 degrees.
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