CG

Here's a simple way to set the CG on this plane (or any bi plane).

I drilled a .046 hole completely thru the top wing on the centerline 5 1/2 inches back from the leading edge. Cut a piece of stock 8" x 1" x 1/4" and drill a .046 hole in the center. Take a piece of .046 wire about 6" long and bend a loop on one end. Insert the wire thru the top of the wing, attach the wood and attach a wheel collar to keep it from pulling out. Set the model on the ground, hook a piece of strong string thru the loop on the wire and lift. Add weight as needed. (Pic Attached)

You could also use this to balance laterally by just rotating the wood on the underside of the wing 90 degrees.

Ed