Back in July 2009 NASA announced a Green Aircraft Challenge. The contest is a flight efficiency competition for an aircraft that is capable of managing average at least 100 mph on a 200 mile flight while achieving greater than 200 passenger miles per gallon. The competition is scheduled for July 2011 with an attractive prize money of $1.65 million. Participating Team aircrafts include those propelled by gasoline, bio-diesel, hydrogen, and electricity. A German company named PC-Aero created an Aircraft that flies on electricity alone, Its named ELEKTRA ONE.
