Arducopter Flies Gas Powered Helicopter — diydrones.com

I have just completed a project to build a helicopter with a gasoline engine, controlled by Arducopter (of course!)  This helicopter serves as a test bed for future gas heli development work for a client of mine.  The goal was to prove out that it could be done.  Gas engines pose a unique challenge for Arducopter due to the heavy vibration they produce.  But they also present a lot of promise for UAV applications as it can allow heavy payloads, long duration flight, and high speeds.

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