The McDonnell Douglas F15 Eagle is the undisputed king of fighter aircraft scoring around 105 kills for zero losses in airtoair combat. Originally designed as a pure air superiority machine to replace the multirole F4 Phantom II the Eagle has since morphed into one of the most technologically advanced fighterbombers in its class the Strike Eagle. First taking to the air in 1972 and entering service in 1976 around 1600 F15s have been built for six air forces around the world. Fast and agil