RE: Great Planes Ultimate Biplane .40 Build. (The covering)
So I fixed my aileron issue caused by the upside down wing. 3/16 3 ply 1/2 ribs. 3/8 sqr spruce mounting rails. 1/8 3ply servo hatch. Servo will be mounted to the hatch sideways for low profile action.
This is an old airtronic servo that was in my 1/4 sale SIG cap many many moons ago. Almost lost that plane due to flotter when this servo's gear stripped. It served well in my old funtana for a few years after I replaced the gears. It may or may not serve the Ultimate.