 In 1994, it achieved a height of 20 cm for 19.46 seconds unassisted, and unofficially reached 70 cm during a flight lasting 24 seconds.In Japanese, the name Yuri means "lily", a reference to the shape of the machine.Team Gamera was formed at the University of Maryland in 2008 to explore the possibility of a human-powered helicopter that could fulfill the AHS Sikorsky Prize requirements.