rhovie,
That should yeild you about 740 watts if run at 40a. The motor can peak at 55 amps for 30 seconds and that would put it in the 900watt range depending on the battery voltage. I estimate the plane AUW should be about 6.5 pounds. So that puts it at 115-120 watts per pound at peak. That would be very good Sport/Acrobatic performance.

-Mike