Boeing Model 307 Stratoliner

Type/Role: 4-Engine Pressurized Airliner
Top Speed: 241 mph / 388 kph
Range: 1.752 mi / 2,820 km
Service Ceiling: 23,300' / 7,102 m
Weight: 30,000 lbs / 13,608 kg
Wingspan: 107' / 33 m
Length: 74.3′ / 22.6 m
Height: 20.79' / 6.34 m
Power: 4 1,100 hp Wright GR-1820-G102A Radial Engines
Crew: 5 (Pilot, Co-pilot, Flight Engineer, 2 Cabin Crew
Manufacturer: Boeing
Number Manufactured: 10
Country of Origin: United States
First Flight: December 31, 1938
Retired: 1975