RE: GP GEE BEE
I'm just about finished with mine.
The G23 seems pretty heavy, so I added 1/4 inch plate to the inside of the firewall, for added strengthy. I had to move the motor forward, for cowl clearance. The added weight up front necesitated moving the servos to the back of the radio compartment. The 1300ma battery will be mounted 3 inches back, in the rear fuselage.
All comments are welcome.