Symmetrical Tricopter and T-Copter Design Theory

In this video, I discuss what I have learned with regard to basic symmetrical tricopter and t-copter design. I show how the tricopter and the t-copter are the same from the flight controller's perspective, and from the perspective of a symmetrical build design. I also show how to identify the proper rear motor position (via rear boom length) for given front motor positions. Oh..and I show how how this T-Copter calculator works just a well for tricopters...and how it validates my "circular" logic of tricopter symmetry.

http://lloydhassell.brinkster.net/rcgroups/t-copter%20dimensions%20calculator.html

I am still designing my tricopter, and you can find my design log at:

http://www.rcgroups.com/forums/showthread.php?t=2051645