Lockheed F-117 Nighthawk

F-117

• A retired American single-seat, twin-engine stealth attack aircraft that was developed by Lockheed's secretive Skunk Works division and operated by the United States Air Force (USAF) 
• It was the first operational aircraft to be designed around stealth technology
• Stealth technology
• also termed low observable technology (LO technology), 
• a sub-discipline of military tactics and passive and active electronic countermeasures, which covers a range of methods used to make personnel, aircraft, ships, submarines, missiles, satellites, and ground vehicles less visible (ideally invisible) to radar, infrared, sonar and other detection methods.
• Widely publicized for its role in the Persian Gulf War of 1991
• Design
• Faceted-angle surfaces provide significant reduction in radar signature
• The F-117 has a radar cross-section of about 0.001 m^2 (0.0108 sq ft).