The Dornier Viper was an West German/Norwegian air-to-air missile project, intended to replace the AIM-9 Sidewinder in Luftwaffe service frfom 1975/76. The Viper was developed by Bodenseewerk and Dornier Systems, using an infrared seeker and a new solid fuel rocket motor (by Kongsberg Vapenfabrik) intended to have twice the burn time of Sidewinder. In 1974, Viper was abandoned in favor of evaluating an American missile. * Length: 2.7 m (8 ft 10in) * Diameter: 15 cm (6 in) * Weight: 80 kg (176 lb)