Lockheed Lodestar 18
Technical Specifications


First Flight: February 2, 1940
Number Built: 625 were built for commercial & military use
Length: 49 feet 10 inches
Wing Span: 65 feet 6 inches
Height: 11 feet 10 inches
Max Take-Off Wt.: 17,500 lbs. 
Max Landing Wt.: 17,500 lbs. 
Empty Wt.: 12,500 lbs.
Max Cruising Speed: 277 mph   241 kts
Normal Cruising Speed: 251 mph   218 kts
Approach Speed: N/A
Landing Speed: N/A
Stall Speed: N/A
Service Ceiling: 25,600 feet
Fuel Capacity: 550 US gallons 
Range: 1,000 miles 
Fuel Type: 100/130 octane
Fuel Consumption: 138 gph both flight plan burn
Engines: 2 Pratt & Whitney R-1830  rated at 1200 HP each @ 2700 rpm
Seating: 14 Passengers
Crew: 2 Pilots and 1 Flight Attendent
Engine Specifications
 Pratt & Whitney R-1830 
Type: 14 cylinder air cooled radial
Diameter: N/A
Length: N/A
Bore: 5.50 inches
Stroke: 5.50 inches
Displacement: 1830 cubic inches
Compression Ratio: 6.7 to 1
Dry Weight: N./A
Ignition: N/A
Fuel Grade: 100/130 octane
Carburation: N/A
Performance: Rated @ 1200 HP @ 2700 rpm take-off