Lockheed Martin has been a pioneer in stealth technology since the 1970s, culminating in the development of the F-117 ...
Preliminary work on the Lockheed Martin X-44 design concept was begun ... as well as the F-117 Nighthawk: the first so-called ...
The F-117 Nighthawk was developed in response to the US' need for a jet that could operate completely undetected by the enemy.