I'm building a flying copter and I've tried to control the speed of it's motors. All worked just perfect: I had a standard motor (with brushes) which had two wires, I've applied different input voltage and controlled it's speed.
The problem was, it was way too powerless... I've ordered a nice outrunner motor, but it has THREE wires, so this confused me much. How do I connect it? And how do I adjust it's speed?