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Electric conversion of 2000mm sailplane

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Old 10-26-2019, 12:33 AM
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genchan
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Default Electric conversion of 2000mm sailplane

Hi. Need some advice.

I have a 2000mm wingspan sailplane that I would like to convert into electric.

Weight of the sailplane (without motor, battery and receiver) is around 800 grams. I plan to use a 30A brushless ESC, 7 cell 8.4V nicad battery, 1060 folding prop and 2 servos (9g).

What brushless outrunner motor is most suitable? Prefer a cheaper motor if possible.

Thank you.

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Old 10-27-2019, 01:26 PM
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I have used one of these and was very happy with it. I would also highly suggest yo7 ditch the nicad pack and go with a 3 cell Lipo. 850 mah would work just fine for up to 3 climb outs per charge.

https://alofthobbies.com/dualsky-xm2838eg-9l.html

https://www.buddyrc.com/tattu-850mah...xt30-plug.html
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Old 10-28-2019, 01:10 AM
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Originally Posted by speedracerntrixie View Post
I have used one of these and was very happy with it. I would also highly suggest yo7 ditch the nicad pack and go with a 3 cell Lipo. 850 mah would work just fine for up to 3 climb outs per charge.
Thank you for your recommendation. I will check it out to learn more about the motor.

I'm also thinking of the 4023 1050kv motor for Volantex 757-V2 757V2 (2m sailplane) and the DXW D3536 1200KV motor (for 2m glider). What do you think of these?
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Old 10-28-2019, 04:52 PM
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KV seems to be a bit high. Larger props at lower RPMs work better for sailplanes.
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