Well, guess what, Horizon didn't reply within the 72 hours that their automated initial reply said. Truth is IMOH, this plane was never intended to take the Saito 82. It will be a fine plane for electric or a 46 2 cycle. The fire wall measures only 3 3/4" square which should be an early clue. Oh yes, I'm putting an OS 46AX on mine.

Panhandledon