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550 Class Electric Helicopters 550 Class Electric Helicopters manufactured by Align, Tarot, SYMA, Airhog, Chaos, HK and similar.


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Old 07-22-2011, 09:28 AM   #1
GormPedersen
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Default Pinion size Viper motor

I have just bought a Viper 6013 1300 kv motor for my T-Rex 550. What pinion size should I use with this motor?
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Old 07-22-2011, 09:33 AM   #2
sewerfly
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I use a 16 on mine with a 90% flat TC works awesome.
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Old 07-22-2011, 09:43 AM   #3
tonydig11
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i have used the 16 with gov at 2200 rpm and it flew great. i did switch to the 17 and ran 2400 rpm and it came down very hot. still not sure if i want to change back to the 16. im going to try the 17 at a gov 2200 rpm and see how it goes
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550 Class Electric Helicopters 550 Class Electric Helicopters manufactured by Align, Tarot, SYMA, Airhog, Chaos, HK and similar.

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