I flew a quad for while but always lost orientation. When I was flying a tricopter I could tell front and back much better. So I built a V-tail quad. I have best of both worlds. Excellent yaw authority but no mechanical linkages. I also get the added stability of a quad but with better orientation from a distance. Got it finish and programmed a multiwii board (Quadrino Zoom - 9 degrees of freedom, Acc, gyro, compass and barometer) a friend loaned me. Did a late night flight with the LED's blazing in the neighborhood. Heard my neighbors say, "What is he doing out there?"
Got the idea from here:
http://www.rcgroups.com/forums/showthread.php?t=1622447
Used Arduino 1.0 sketch with V-tail and Quadrino Zoom commented. Used the Multiwii 2.0 configuarator to setup board. Powered board with a single bec from motor 3.
Got to tune the PID's since I have some twitching. Will update when/if I get it dialed in.
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