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Home✈️Aircraft🚁HelicopterCentury Radikal G20-30 N640 Hawk Predator › noisy speed up gear on raven
08-03-2007 06:25 PM  13 years ago
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flyboy0413

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Brookfield, CT

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noisy speed up gear on raven
I just installed the 53T grey speed up gear and noticed that the gears seem noisier when spinning the main rotor by hand. Anybody else notice this?
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08-03-2007 08:24 PM  13 years ago
Gearhead

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I have noticed this many times in many different plastic geared transmissions,, you are changing the gear ratio by driving the head, by driving the head you are creating a over drive (1 to 8.736), this will make for more noise,,, I have not noticed my Raven anny louder in the air with the gray speed-up gear..

Jim
Jim
Buzz Buzz Buzz
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08-03-2007 10:01 PM  13 years ago
flyboy0413

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Brookfield, CT

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well, the reason I brought this us is because the gear pitch is slighter different that the black 55T gear. Because the gear mesh is not adjustable, the designers at Century decided to slightly increase the gear pitch to keep the pitch diameter the same between the two gears while having different number of teeth.
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