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Lockheed B-37

Lockheed B-37The Lockheed B-37 was intended to be an armed reconnaissance/observation derivative of the Lockheed Lodestar. Initially designated O-56, the aircraft was later redesignated RB-34B and finally B-37 because a different engine would be used on the B-37 (Wright R-2600 rather than the Pratt & Whitney R-2800 used on the B-34).

The US Army Air Corps placed an order for 550 aircraft on 8 August 1941, five days before the initial B-34 order. Only 18 B-37s were actually completed before the entire order was canceled to allow Lockheed to shift production to higher priority projects. The first flight of a B-37 was on 21 September 1942.


Number Built/Converted

Armed recon./observation A/C
  • Serial numbers: 41-37470 to 41-37487
  • Lockheed Model 137-96-03
  • First flight was on 21 Spetember 1942
  • Initially designated O-56, then RB-34B and finally B-37
Span: 65 ft. 6 in.
Length: 51 ft. 5 in.
Height: 11 ft. 11 in.
Weight: 29,500 lbs. (max. gross weight)
Armament: Four .30-cal. and five .50-cal. machine guns plus 2,000 pounds of bombs.
Engines: Two Wright R-2600-13 radials of 1,700 hp. each
Crew: 5

Maximum speed: 298 mph. at 13,500 ft.
Cruising speed: 198 mph
Range: 1,300 miles normal combat; 2,700 miles max. ferry range
Service Ceiling: 22,400 ft.

    Lockheed B-37 Photo Archive
  • Side view - note the cone shaped gun port on the aft fuselage.

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