Brushed/Brushless motors, speed controls, gear drives Discuss all aspects of brushless motors, brushed motors, speed controls (ESC's), gear drives and propellers in this forum.

need propulsion sytem

Old 10-07-2003, 10:38 PM
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Default need propulsion sytem

I have built my plane. it is about 15 pounds with payload not including powerplant.
Problem is i dont know a thing about powerplant. I have to use electric motors. I have it constructed with two motor mounts.

I really need help desinging a propulsion system. Two electric engines, 40 amp controller, props, and batterys. Money isnt really a big issue. need about 10 minutes fly time. must take off in less than 200ft. im thinking a good T/W is about 0.35 maybe.

please help
Old 10-14-2003, 11:58 PM
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Default RE: need propulsion sytem

One suggestion, download motocalc.

The latest version does multi-motor and multi-battery calculations and offers a wiring diagram on how to hook it all up.


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