Company Aerospatiale in 1972 began to develop multi-purpose helicopter Dauphin "to replace the AlouetteV» III in two versions: with one and two engines. The first was a helicopter SA 360. In May 1973 he set three speed record for helicopters in its class. The second prototype flew on 29 January 1973, and in December 1975 received a certificate of compliance with airworthiness requirements of France. The first prototype of a helicopter with two engines SA 365 Dauphin flew on Jan. 24, 1975 Helicopter SA 365 Dauphin 2 is for single-rotor scheme with the tail rotor type fenestron, two gas turbine engines and retractable tricycle landing gear. Fuselage-metal, semi-monocoque, has good aerodynamic shape. Double crew cabin has a metal frame with large glazed windows in the upper part. The helicopter is done booking seats pilots, flight control system components and engine management systems, protection of the fuselage of a stroke during vertical landing speeds of up to 7 m / s and a maximum takeoff weight, reducing the risk of fire after the impact.