Re: ultralight/moped anyone?
Let me put it this way, the engine my brother had in is 40% Edge 540 R/C airplane (80" wingspan) was a horizontal twin that is rated at 152cc.
Also there's a few things on one of the bike engines that you wouldn't need in an aircraft, namely the clutch. You'd want to run your prop directly off the crankshaft so you'd have to figure out a way to pretty much lop the entire rear of the case off to get rid of the clutch then find a way to seal the hole left behind.
Last edited by Kevlarr; 09-08-2009 at 06:31 PM.