You guys have drifted way off topic. Dan....a diesel 09 throttled QB could be great! Can it be done, I know where I can get Cox 09 crank and cylinders. Easytiger, are we talking about Ivor F from Sydney Australia, maker of the Doonside Mills 075 diesel. I bought a few Cox 049's off him a few years back. Nice bloke, as far as I know he's doing O.K. Southern Hemisphere on the control line forum says he keeps in contact with him.