New human-powered helicopter design
With a frame made of 6061 T6 aluminum, a 1:1 gear ratio and stacked rotors with a carbon0-fiber spar, this 15-pound “micro” helicopter is the latest design competing for the $250,000 Sikorsky Prize! Here’s the scoop from Gizmag: Last September, the Gamera II team from the A. James Clark School of Engineering got so […]