Boeing 377 Stratocruiser


Boeing 377-10-30 Stratocruiser © Richard Vandervord
Photo ©: Richard Vandervord (Photos at
The Boeing 377 Stratocruiser is a four-engine long-range Airliner with a capacity of maximum 114 passengers produced by the US-American manufacturer Boeing Company.
The Boeing 377 Stratocruiser is a commercial development of the Boeing Model 367 C-97 Stratofreighter / KC-97 Stratotanker transport- and tanker aircraft, which itself was based on the Boeing B-29 Superfortress (Model 345). After operation as an airliner, many Stratocruiser were converted to transport aircraft configuration. Nine of them were converted to Pregnant Guppy, Super Guppy and Mini Guppy for the transport of oversize cargo by Aero Spacelines.
Propulsion4 Radial Engines
Engine ModelPratt & Whitney R-4360-B6 Wasp Major
Engine Power (each)2610 kW3500 hp
max. Cruise Speed546 km/h295 kts
  339 mph
Speed604 km/h326 kts
  375 mph
Service Ceiling10.058 m33.000 ft
Range6.760 km3.650 NM
4.200 mi.
Empty Weight37.876 kg83.500 lbs
max. Takeoff Weight67.133 kg148.000 lbs
Wing Span43,05 m141 ft 3 in
Wing Area164,0 m1765 ft
Length33,63 m110 ft 4 in
Height11,66 m38 ft 3 in
First Flight08.07.1947
Production Statusout of production
Total Production56
Developed fromBoeing B-29 Superfortress
Data for (Version)Boeing 377 Stratocruiser