Dont know if this has been posted before, it's not new but I'd never seen it. I did see the proto flying with the guy sitting on top back in 2011 but I didn't know a final model existed. No real technical data on their official site about the battery bank but I'm gonna look around, does anyone else have any link's?
Now I'm gonna have to build me an RC one, probably around 370 size or so, the air frame should be no problem to 3D print then I can pay a guy on RCforums to vac form me a canopy for it. Multiplex some motors together and control it with an ATMEGA running multiwii. The only real question in my mind, actually use 18 motors or just make it an octacopter...