The Pinwheel Was a Rocket-Powered, One-Person Helicopter Backpack

(Photo: US Navy)

Gilbert Magill called his invention the Pinwheel. At 150 pounds, it was not quite up to Inspector Gadget's standards, but it was a start in the right direction.

The aircraft was a tip jet helicopter, meaning that there were little rockets at the ends of the rotor blades. They shot our a mixture of hydrogen peroxide, which instantly turned into steam and oxygen. Here's a video showing the Pinwheel in flight.

(Video Link)

-via The Presurfer

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