Here’s an amazing video of students at the University of Maryland and their human-powered helicopter. This guy is really pedaling hard … guess that’s a natural “safety limiter”! “Gammera II” currently holds the world record of 50 seconds for human-powered heli flight. The students designed and built it in an effort to capture the Sikorsky Prize, which will be awarded to the first man-powered helicopter that reaches a height of 10 feet during a flight that lasts at least a minute and is contained within a 32.8-foot square area. Stay tuned!