The $250,000 Sikorsky Prize for human-powered flight has finally been won. A Canadian team, AeroVelo, built a helicopter that was pedaled to an indoor altitude of a little over 3 meters and remained aloft for 65 seconds. While it is an incredible sight to see a human suspended in mid-air by the power of sheer ingenuity, hopefully this feat will draw to a close the fantastic, but unfortunately dead-end avenue of human-powered flight.
Basically, this kind of yo-yo style, lawnmower pullstart coupling used by AeroVelo is highly effective to get you $250,000 cash, but not for sustained flight.