The Lockheed F-117A "Nighthawk" fighter was developed in response to an Air
Force request for an aircraft capable of attacking high value
targets without being detected by hostile radar systems. By the
1970's, special materials and techniques had become available to
aircraft designers that would allow them to design an aircraft
with radar-evading or "stealth" qualities. The result was the
F-117A, the world's first operational aircraft that fully
incorporated radar-evading techniques. The first F-117A flew on June 18, 1981. A total of 64 F-117A's were built between 1981 and 1990, 5 for testing and
59 for operational use . The F-117A was awarded the 1989 Collier Trophy, one of the most prized
aeronautical awards in the world.
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