Igor I. Sikorsky Human Powered Helicopter Competition Igor I. Sikorsky Human Powered Helicopter Competition The Igor I. Sikorsky Human Powered Helicopter Competition was established in 1980 by the American Helicopter Society (AHS) International. The award, the AHS Sikorsky Prize, was given for the first human powered helicopter (HPH) to meet a set of extremely challenging flight requirements. In summary, the requirements to win the AHS Sikorsky Prize included a flight duration of 60 seconds and reaching an altitude of , with the center point of the aircraft hovering over a square. In 2013, 33 years after the competition was established, the award was officially declared won when
Sikorsky S-3 Sikorsky S-3 The Sikorsky S-3 was an early Russian single seat biplane design by Igor Sikorsky. Work on the machine started in July 1910 and was completed in late November. The S-3 was a larger improved version of the S-2 with a more powerful Anzani three-cylinder engine. The main wings were manufactured in a more uniform manner with the ribs held to a closer tolerance and the fabric covering was of better quality. Other refinements included larger ailerons and faster responding flight control surfaces. The S-3 exhibited performance superior to the S-2 and Sikorsky made a dozen successful flights starting