During the final years of the 20th century, the most significant break-through in military weaponry was the concept of Stealth technology, and the first mass-produced weapon to utilize this to perfection was the F-117 Nighthawk. Despite the fact that it was first delivered in 1982, the US Air Force officially denied its existence until 1988. Nevertheless, the operational status of the aircraft still remained a well-guarded secret with nighttime only...
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