Tiny reconnaissance aircraft has industry in a flap

A tiny nano air vehicle (NAV) that hovers by flapping its wings has impressed its developers – and the Defense Advanced Research Projects Agency (DARPA) - with AeroVironment receiving a Phase II contract extension worth $2.1 million for its NAV program. Since its initial 20-second flight in December 2008, the tiny 10 gram craft, which carries its own power supply, has progressed towards achieving AV's goals of a creating a machine that can hover for extended periods and fly at forward speeds up to 10 meters per second.

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