My scratch build FT Simple Storch:
It is made of "cartón pluma" the alternative material we have here at Spain that it is about 50% heavier than foamboard.
-3s 2200mah battery.
-Emax GT 2215/09 (1180 KV)
-10x4,7 propeller.
I only get about 5 mins of flight. When the voltage falls under 3,9 V the motor propulsion seems to be insuficient, and the plane loses sustentation.
I'm going to try a 9x6 propeller and flaperons. Hope it increases time of flight.
The plane, when it is in flight, it is very beautiful. Very stable. Nice landings.