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Electric General Discussion
› Pinion gear/kv question
12-06-2012 03:48 AM  5 years agoPost 1
GMPheli

rrElite Veteran

W. Bridgewater, MA USA

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I just got an Ikarus Viper 70. I need to get a motor for it. I don't need anything too powerful, I just want to fly around the backyard, no 3d. I am new to electric and don't really understand what I am doing. The recommended motor is an H8. I believe this is a 2820, 1500 rpm/v. I found this economical 2820 motor. http://www.bphobbies.com/view.asp?i...27&pid=B1898547
But this is a 1000 rpm/v motor. With a 3 cell lipo, it will spin about 11,100 rpm, right? With a 19 tooth pinion, this would give me a head speed right around 2000, which should be fine for me. But now I find 4mm bore pinions are not that easy to find. I found this one, does anyone know what mod it is?

[url]http://www.hobby king.com/hobby king/store/__15270__Replacement_Pinion_Gear_4mm_19T.html

I am looking for .5 mod.
Any comments welcomed
Thanks

p.s. I have no idea why the hobby king url does not work. I have wasted way to much time messing with it

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