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10-01-2013 | 09:59 AM

#28

aeajr

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From: Long Island, NY

A note on take-off, they only have 40 feet of take-off permitted so the plane will have to come off the ground pretty fast.

I did some modeling of motors using WebOCalc - using a 230 kV outrunner on 24 cells/28/8V with a 15X10 prop you would pull 15 amps and produce 74 oz of thrust and 50 mph pitch speed on 432 input watts.
http://www.maxxprod.com/pdf/HC6332-230.pdf

If your plane weighs 6 pounds all up that would be about 72 watts/pound. That should get the job done.

Now, you don't have to use THIS motor. It is just for reference to get a starting point.

Similar results on this 200 kV motor with a 16X12 prop at about 69 watts/pound.
http://www.himodel.com/electric/EMAX...GT5335_10.html

Last edited by aeajr; 10-01-2013 at 10:04 AM.

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