Power is a Saito 72 FA, turbo muffler, and velocity stack with tubing nipple that scavenges the blowby off the crankcase. No oily bottom! Flaps are 2/3 of the wing control surface, 1/3 aileron, Symmetrical wing with 1-1/4 ” dihedral. The boom is 1/4″ carbon rod encased by 1/4 x 3/4 balsa. Weight comes in at 4.83 lbs. Maiden flight was great with NO clicks of trim needed. Twas a miracle. Deserves the experimental and STOL stickers.