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Home✈️Aircraft🚁Helicoptere-SABGoblin 770 › goblin 770 gear ratio ?
04-24-2013 02:57 PM  7 years ago
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soberflierross

rrApprentice

Cottage Grove, MN USA

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goblin 770 gear ratio ?
is 11.316 the correct gear ration with the stock gear setup and a 19 tooth pinion

thanks
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04-26-2013 01:13 PM  7 years ago
skyblade30

rrNovice

Paris, France

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Hi,

the drive pinion is 19T and the standard motor pulley is 20T:

Because of the 2 stages of reduction the main gear is eq. to about 215T :

215 / 20 = 10.75 is the gear ratio.
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