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Appearance
Variants
[edit]![](http://upload.wikimedia.org/wikipedia/commons/thumb/a/a3/Lockheed_Y1C-36.jpg/220px-Lockheed_Y1C-36.jpg)
![](http://upload.wikimedia.org/wikipedia/commons/thumb/6/6a/Lockheed_Y1C-37.jpg/220px-Lockheed_Y1C-37.jpg)
![](http://upload.wikimedia.org/wikipedia/commons/thumb/3/3f/Lockheed_XC-35_parked.jpg/220px-Lockheed_XC-35_parked.jpg)
The Electra was produced in several variants, for both civilian and military customers. Lockheed built a total of 149 Electras.
- Electra 10-A
- Powered by two Pratt & Whitney R-985 Wasp Junior SB, 450 hp (336 kW) each; 101 produced.
- Three built for the U.S. Army Air Corps as Y1C-36, redesignated as C-36 in 1938 and as UC-36 in 1943.
- Fifteen impressed by the U.S. Army Air Forces as C-36A, redesignated as UC-36A in 1943.
- One built as XR2O-1 for the U.S. Secretary of the Navy.
- One built as Y1C-37 for the Chief of the National Guard Bureau, redesignated as C-37 in 1938 and as UC-37 in 1943.
- Electra 10-B
- Powered by Wright R-975-E3 Whirlwind, 440 hp (328 kW) each; 18 produced
- Seven impressed by the U.S. Army Air Forces as C-36C, redesignated as UC-36C in 1943.
- One built as XR3O-1 for the U.S. Coast Guard for use by the Secretary of the Treasury.
- Electra 10-C
- Powered by Pratt & Whitney R-1340 Wasp SC1, 450 hp (336 kW) each; eight produced for Pan American Airways.
- Electra 10-D
- Proposed military transport version; none built.
- Electra 10-E
- Powered by Pratt & Whitney R-1340 Wasp S3H1, 600 hp (447 kW) each; 15 produced. The version used by Amelia Earhart.
- Five impressed by the U.S. Army Air Forces as C-36B, redesignated as UC-36B in 1943.
- XC-35
- Experimental pressurized research model powered by turbocharged Pratt & Whitney XR-1340-43, 550 hp (410 kW) each. The one production model was tested for the War Department by Lieutenant Benjamin S. Kelsey. For this work, the Army Air Corps was awarded the 1937 Collier Trophy.[1]
- Lockheed KXL1
- A single Lockheed Model 10 Electra supplied to the Imperial Japanese Navy Air Service for evaluation.
- ^ "New Plane Ready For Stratosphere Test Flights." Popular Mechanics, August 1937.