Douglas DC-4E
Technical Specifications

First Flight: June 7, 1938
Number Built: 1as prototype
Length: 97 feet  7 inches
Wing Span: 138 feet  3 inches
Height: 24 feet  6.5 inches
Max Take-Off Wt.: 66,500 lbs. 
Max Landing Wt.: 61,500 lbs.
Empty Wt.: 42,564 lbs.
Max  Speed: 245 mph   213 kts
Normal Cruising Speed: 200 mph   173 kts
Service Ceiling: 22,900 feet
Fuel Capacity: N/A 
Range: 2200 miles 
Fuel Type: 100/130 octane 
Fuel Consumption: N/A
Engines: 4 Pratt & Whitney R-2180-S1A1-G
rated @ 1450 HP each
Seating: 52 Passengers
Crew: 2 Pilots and 2 Flight Attendents
Engine Specifications
Pratt & Whitney R-2180-S1A1-G
Type: 14 cylinder air cooled radial
Diameter: N/A
Length: N/A
Bore: N/A
Stroke: N/A
Displacement: 2180 cubic inches
Compression Ratio: N/A
Dry Weight: N/A
Ignition: N/A
Fuel Grade: 100/130 octane 
Carburation: N/A
Performance: Take-Off  1450 HP