There is a lot to consider between quads and tri's. Both have their pros/cons. The biggest differentiating factor is efficiency, and maybe simplicity of building. I recenlty came accross an article that proposes a slightly different approach to rotor configuration that sounds fairly compelling, which is a hybrid, taking the best of a tri, quad, and heli into one airframe increasing efficiency and manuverability. Unfortunately I couldnt find a video of the quad design, I would love to see one in action.
Article in question: http://spectrum.ieee.org/automaton/robotics/aerial-robots/iros-2013-should-quadrotors-all-look-like-this
There is some R&D being done with some variable pitch rotors with some very exciting results:
I would love to see what the hybrid can do. So with that. Lets get to hacking!
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