One more thing to point out in reply to some posts. Yes, our wings were providing most of the lift when the rotor was slowed down. That is the only way we can slow the rotor down and keep it stable. It's not "cheating." It's a method to efficiently fly fast (high aspect ratio wings providing lift) and still get efficient vertical takeoff and landing (large diameter rotor providing lift). Because the rotor can provide all of the lift at slow speeds, the wings can be sized smaller than for airplanes of comparable size, so the combination of our slowed rotor and small wings gives just about the same amount of total drag as a conventional airplane with wings sized for landing.