Robert Holic ( not sure of the spelling ) who is the current owner of APC used to race with us. Fred Burgdorff the former owner and founder was also a race guy. We had 14x12, 14x13, 14X14 and my favorite 13.5x13.5 props to run. I mostly ran 30% nitro but some ran up to 55%. Unfortunately to keep our AMA sanction we needed to adopt breakout times for each class. For the gold class, that meant flying the course no faster then 1:30. The planes were capable of 1:20 for the most part so a guy could fly a sloppy course and still win. Took the skill out of it and for me the challenge/fun.

The tail section was solid balsa sanded to airfoil shape and bagged with 3.6 glass with a 1.6 oz strip of Kevlar. After bagging the side opposite of the Kevlar was cut through to the Kevlar and a V groove sanded in and the Kevlar became the hinge.