United States Air Force Locomotive No. 1246

The United States Air Force Locomotive No. 1246 is a historic diesel-electric railroad switch locomotive on display at the Fort Smith Trolley Museum in Fort Smith, Arkansas. It was manufactured in 1953 by the General Electric Company in Schenectady, New York, in fulfillment of a contract with the United States Air Force for eleven of its 44-ton locomotives. It is believed to have spent all of its productive life at Grissom Air Force Base in Indiana, and was acquired by the museum in 1992.[2]

United States Air Force 1246
2008 photo
Type and origin Power type Diesel-electric Builder General Electric Serial number 31870 Model 44-ton Build date January 1953
Specifications Configuration: ​  • AAR B-B  • UIC Bo′Bo′ Gauge 4 ft 8 1⁄2 in (1,435 mm) Prime mover Caterpillar D17000, 2 off Engine type V8 diesel
Performance figures Power output 380 hp (283 kW)
Career Operators United States Air Force Current owner Fort Smith Trolley Museum Disposition Static display
United States air Force Locomotive No. 1246
U.S. National Register of Historic Places
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Location	100 S 4th St., Fort Smith, Arkansas
Coordinates	35°23′7″N 94°25′47″W
Area	less than one acre
Built	1953
Architect	General Electric Company
NRHP reference No.	06000840[1]
Added to NRHP	September 20, 2006

The locomotive was added to the National Register of Historic Places in 2006.[1]