Developed in substitution for the planned He 177A-4 high-altitude bomber, the Heinkel He 274 was the detail design responsibility of Societe Anonyme des Usines Farman's Suresnes factory in occupied France. Fitted with a pressure cabin, the aircraft was powered by four 1305kW Daimler-Benz DB 603A-2 engines and featured a lengthened version of the He 177A-3 fuselage, with a new high-aspect-ratio wing and twin fins and rudders. Two prototypes were ordered in May 1943, together with four He 274A-0 pre-production examples, which were to have 1417kW DB 603G engines. Despite an unsuccessful German attempt to destroy the almost-complete first prototype when they retreated from Paris in July 1944, the aircraft was finished by the French after the liberation and flown from Orleans-Bricy in December 1945 as the AAS 01 A. It was used later to test-fly models of such aircraft as the Aerocentre NC 270 and the Sud-Ouest SO 4000.

3-View

A three-view drawing (1200 x 624)