The rash of strange drone sightings across New Jersey and neighboring states late last year seemed destined to remain one of life’s great mysteries. Not on the New York Post’s watch. On Saturday, ...
Modern Engineering Marvels on MSN
Lockheed’s D-21 drone tried to replace risky spy flights and paid a strange price
The D-21 was designed to fly at an approximate speed of Mach 3.3 above 90,000 feet not as a demonstration piece, but as a way around a very particular issue: Since the 1960 shootdown of U-2s, the ...
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