 With no human-powered helicopter getting off the ground since 1994, in 2009 Sikorsky Aircraft Corporation pledged to AHS International an increase in the size of the remuneration to $250,000, which significantly increased interest in the competition.It resulted in a new generation of human-powered helicopter teams, with two—one the University of Maryland and the other AeroVelo—in a "tight battle" to win.Students at the University of Maryland designed and built the "Gamera I".