Got some people looking into this also. In the past Echo would not sanction using our engines to power any type RC due to the liability of "remote" -ly striking someone or something.

I don't know of anyone who has adapted this engine to fly. However, I do know of a place in Ohio that buys Echo twin cylinder engine parts and machines a crankcase and all the parts needed to fly. If you want I can get the name for you. He's sold quite a few of the twins.

Technically the CS-4400 (the only way to get the engine is to get the entire chainsaw too) is a top quality engine:

1. Ball bearing supported and counter-balanced crank
2. SAIS or "Slope Advanced Ignition Spark" which means the spark will automatically advance as RPM's go up and visa-versa.
3. There is a Canadian version which meets Canadian radio interference regulations.


My dad works for Echo Incorporated. He has some pretty good insight on the workings of these engines. He is trying to get more infomation, when he does I'll pass it on to you guys.