NASA's Helios prototype spans new heights
By Mike Hanlon

NASA's Helios prototype spans new heights
Image Gallery (4 images)It has a wingspan longer than a Boeing 747, weighs less than 900 kg, incorporates 14 solar-powered propellers and it's the highest flying propeller-powered aircraft in the world. With its soaring profile and radical "flying wing" design, NASA's Helios prototype is set to revolutionise air-based communications platforms, the placement of low orbit satellites and even unmanned flights in the Martian atmosphere.
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Terotech
- November 21, 2009 @ 19:38 UTC