HEINKEL He 274
Originally designated He 177 A-4, the He 274 was a high-altitude development of the He 177.
Like the He 277, the He 274 dispensed with coupled engines and mounted four single
powerplants. While originally considered a version of the He 177, growing incompatability
of parts led to the redesignation to He 274 and reassignment of the project to SAUF. French
resistance workers conspired to slow down development of the He 274 so that the prototypes
were not ready at the time of the German withdrawal in July 1944. The French took possession
of the prototypes and redesignated them ASA 01A. The prototypes finally flew in December 1945
with French markings.
Type: High Altitude Heavy Bomber
Origin: Ernst Heinkel AG (later assigned to SAUF, Suresnes, France)
Models: V1 and V2
Production: Two prototypes
First Flight: December 1945 by the French Powerplant:
Daimler-Benz DB 603A-2 inverted turbocharged V12
Horsepower: 1,850hp
Number: 4 Dimensions:
Wing span: 44.20m (145 ft. 2¼ in.)
Wing Surface Area: N/A
Length: 23.80m (78 ft. 1¼ in.)
Height: 2.10m (6 ft. 10½ in.)
Stabilizer Span: N/A
Origin: Ernst Heinkel AG (later assigned to SAUF, Suresnes, France)
Models: V1 and V2
Production: Two prototypes
First Flight: December 1945 by the French Powerplant:
Daimler-Benz DB 603A-2 inverted turbocharged V12
Horsepower: 1,850hp
Number: 4 Dimensions:
Wing span: 44.20m (145 ft. 2¼ in.)
Wing Surface Area: N/A
Length: 23.80m (78 ft. 1¼ in.)
Height: 2.10m (6 ft. 10½ in.)
Stabilizer Span: N/A
Weights:
Empty: 21,300kg (46,964 lb.)
Loaded: 38,000kg (83,786 lb.) Performance:
Maximum Speed (Sea Level): 267 mph
Maximum Speed (11,000m): 360 mph (580 kph)
Cruise Speed: N/A
Range: 4250km (2,640 miles)
Initial Climb: N/A
Endurance: N/A
Service Ceiling: 46,915 ft (14,300m) Armament:
N/A Avionics:
N/A
Empty: 21,300kg (46,964 lb.)
Loaded: 38,000kg (83,786 lb.) Performance:
Maximum Speed (Sea Level): 267 mph
Maximum Speed (11,000m): 360 mph (580 kph)
Cruise Speed: N/A
Range: 4250km (2,640 miles)
Initial Climb: N/A
Endurance: N/A
Service Ceiling: 46,915 ft (14,300m) Armament:
N/A Avionics:
N/A
, 1977, Salamander Books Ltd., London
