AKfreak
150cc
Well I was right, it's $700-800+. After reading about it, it's pretty neat. He said he designed it for vertical racing. "Imagine racing down the side of the Grand Canyon" interesting fact is Curtis Youngblood had the vision and built it the hardware, and his father wrote all the code for the controller. To me this is just incredible. A bit pricey for me, but incredible technology. It only has one motor, all of the heads are driven by a toothed serpentine belt, with servos at each head to run collective. If I had a chance to buy the stingray or the 3d quad for the same money, I would buy the stingray.There is such a thing. The Stingray
http://curtisyoungblood.com/V2/products/quadcopters/stingray-500