Hi, bassmanh

I have an evolution trainer engine installed on my Hangar 9 Alpha Trainer plane, which is an excellent .46 engine, and it runs like a champ right out of the box. The .46-size engine has been broken-in and adjusted at the factory prior to shipping. It’s meant to just, install in the plane and Fly. That what I did and had no problem at all with this engine. Start up every time like clock work.

I did remove the 3 blade prop and I am using an 11x 7, with this prop the Alpha Trainer plane fly’s a lot nicer. The 3 blade prop slows the plane down to mach on take off not enough power. Hare is a link that will give you more info on the engine. http://www.modelairplanenews.com/rev...atrainer_2.asp