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Boeing 307 Stratoliner (C-75) Passenger Airliner

Just ten of the Boeing Model 307 Stratoliner were built, some seeing service during World War 2 as part of the USAAF.

 Updated: 4/25/2016; Authored By Staff Writer; Content ¬©

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Boeing 307 Stratoliner Technical Specifications

Service Year: 1940
Type: Passenger Airliner
National Origin: United States
Manufacturer(s): Boeing Company - USA
Production Total: 10

Structural (Crew Space, Dimensions and Weights)

Operating Crew (Typical): 5
Overall Length: 73.82 feet (22.5 meters)
Overall Width: 108.27 feet (33.00 meters)
Overall Height: 20.83 feet (6.35 meters)

Weight (Empty): 29,994 lb (13,605 kg)
Weight (MTOW): 45,007 lb (20,415 kg)

Installed Power and Standard Day Performance

Propulsion: 4 x Wright GR-1820-G102A radial piston engines developing 1,100 horsepower each.

Maximum Speed: 241 mph (388 kph; 210 knots)
Maximum Range: 1,752 miles (2,820 km)
Service Ceiling: 23,310 feet (7,105 meters; 4.41 miles)

Armament / Mission Payload


Global Operators / Customers

Cambodia; Ecuador; France; Haiti; Laos; United States

Model Variants (Including Prototypes)

Model 300 - Original Concept Design
Model 307 - Base Series Designation; five-man crew; Wright Cyclone GR-1820-G102 engines; single-speed supercharger.
Model 307B - Seven-man crew; Wright Cyclone GR-1820-G105A engines; two-speed supercharger.
Model 307B-1 - Post-WW2 model; Wright Cyclone GR-1820-G606 engines; B-17 bomber wings; B-29 electronics fit.
C-75 - USAAF model of WW2; five examples; sans pressurized cabin.