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Help! efficiency and flight time for long range.

#1
Planing a scratch built inav long range plane but I can't decide what airframe to use. I would love to have at least 13 to 14 min flight time. Please leave the best airframe you can think of, it would help a ton.
 

Merv

Well-known member
#3
I agree with @mach1 rc, I would add the Versa and Specter to his list.
Pay attention to your power source, look as the grams of thrust per watt, it’s not hard to get a setup greater than 10 g/w of thrust. Look for something that will turn a larger prop slowly. Flight times of 15 minutes or more are very possible.