Download Discovery Channel - Future Wings: Eyes in the Sky

This Discovery Channel documentary looks at the role of the unseen aerial equipment: drones, UAVs, stealth planes, satellites, etc. We learn that not all of these Eyes in the Sky are used for military purposes .. We start by looking at the world s most notorious spy plane, the U-2, and its role in the Cuban missile crisis during the Cold War, before moving on to some of the most significant eyes in today s sky
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* Global Hawk: a large, unmanned aerial vehicle it has a 116 ft wingspan, a V-shaped tail and can cover 5,000 miles at a time, staying airborne for almost 2 whole days without refuelling it is flown entirely by computer and feeds its info directly to a satellite to provide tactical reconnaissance
* Dark Star: the world s first unmanned stealth plane first flown in 1996, it can fly without being noticed it produces incredibly sharp images which it can bounce around the world in less then 2 seconds
* Outrider: a small, unmanned bi-plane introduced in 1997 it uses GPS to land
* Cipher: a doughnut-shaped UAV (unmanned aerial vehicle) that is hard to see on radar it flies at a height of 8,000 ft, uses GPS and is able to take off and land vertically
* Pathfinder: an environmental research plane which cruises at only 15 miles per hour but at a height of 18 miles above the earth it can fly for months at a time
* Centurion: huge, solar-powered UAV with a 200 ft wingspan it stays in the air for months and can monitor agriculture, tropical storms, forests fires, etc.