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03-07-2012 09:09 PM  6 years agoPost 1
BGM

rrNovice

HOLLYWOOD fL

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I have a Raptor 60 in a scale body that i would like to convert to electric. I was thinking of using the Scorpion 4035-500KV motor with a Castle 120 HV on 12S. Can anyone recommend how to mount the motor? I would prefer to keep the clutch for a slow spoolup.

Thanks

Bernard

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03-08-2012 11:13 AM  6 years agoPost 2
gwright

rrVeteran

Champaign Il

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can't help on your mounting question, however, i would suggest a much lower KV motor. Since you'll be keeping the nitro gearing, the ratio will be quite low rather than the 9.5~10 to one range normally used with notors in that kv range. Additionally, since it's a scale body machine you probably aren't going to be 3D'ing it so maximum headspeed and short flights probably aren't what you want.

I'm not sure of the gearing in that setup, but I use 400 KV motors with 9.3 to one on 12S and advanced timing in the ESC. I use three modes, roughly 1650/1750/ and just shy of 2000. With the higher timing, the motor actually has an effective KV of around 440~450. In the middle rpm setting I can do 10+ minutes of smooth flowing 3D, so plenty of power for a scale setup and flights are long with nothing getting hot in the power system.

Gary Wright

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03-08-2012 01:08 PM  6 years agoPost 3
PJRono

rrKey Veteran

Minnesota, Ya!

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Gary's right on the motor choice. My MD500 is set up for 9-10S with a 4035-500. I was trying to keep the weight down so less battery. As it is she came out at 14lbs ready to fly. I did not use the clutch but prefer to use the "super slow" spool up of the CC ESC.

If you skip me I can't play!

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03-08-2012 10:37 PM  6 years agoPost 4
Ben-T-Spindle

rrProfessor

Central Illinois

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I converted one a few years ago and am still flying it. There are photos at RCG http://www.rcgroups.com/forums/showthread.php?t=565455

... BTS

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