Dicks got the right idea here:

I have been flying mine for some time now with the recommended 160 four stroke twin. Never had any issues. Full throttle for take off (gently on that throttle and be ready for that right rudder) after take off about 2/3 throttle for scale flight. Mines 20.5 lbs, no lead but all batteries are right against the firewall. I do not land this power off but just a click of throttle with full flaps.




Denis