Helicopters aren't the fastest things flying through the air, but they aren't all lumbering beasts either. While they're not ...
The jet will be an unmanned hypersonic aircraft. Lockheed claims ... it may not be long before the fastest plane ever hits the skies. More from Military & Defense In 2013, Lockheed Martin ...
Many of the U.S.' fastest drones are still in development ... greater endurance than many UCAVs operated by the U.S. military ...
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