The Swisscopter Dragonfly is a small helicopter with rocket engines on the ends of its rotors blades to make them spin.

PopSci:

The copter makes use of tiny hydrogen-peroxide-powered rocket motors on the tips of the blades, which replaces the traditional engine-powered rotor. Large fuel tanks surrounding the pilot allow the Dragonfly to travel at up to 40 mph for 50 minutes.

Video after the jump.

 

Originally posted by Dane Carlson on March 16, 2014 in Inventions.

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