The McDonnell Douglas (now Boeing) F-15 Eagle is an American twin-engine, all-weather tactical fighter designed by McDonnell Douglas to gain and maintain air superiority in aerial combat. The F-15 is a air superiority fighter known for its incredible acceleration and maneuverability. It is among the most successful modern fighters, with over 100 victories and no losses in aerial combat. Flown not only by the US Air Force but by the Israel Air Force, Saudi Arabia Air Force and even Japan Air Force. F-15E Strike Eagle, was later developed, entering service in 1989.