The EMD Model 40 was a two-axle diesel-electric locomotive built by Electro-Motive Corporation (EMC), and its corporate successor, General Motors' Electro-Motive Division (EMD) between August 1940 and April 1943. Nicknamed "critters", eleven examples of this locomotive were built. Powered by twin General Motors Detroit Diesel 6-71 diesel engines, which produce a combined 300 horsepower (224 kW). It's drivetrain is unusual because the two diesel engines are used to drive the electric DC generator from both sides, one with clockwise rotation and the other with counter-clockwise rotation.

EMD Model 40
An EMD Model 40 at the Travel Town Museum in Los Angeles, California.
Type and origin Power type Diesel-electric Builder General Motors Electro-Motive Division (EMD) Model Model 40 Build date April 1940 – April 1943
Specifications Configuration: ​  • Whyte 0-4-0  • AAR B Gauge 4 ft 8+1⁄2 in (1,435 mm) standard gauge Loco weight 84,000 lb (38,000 kg) Fuel type Diesel fuel Prime mover (2) Detroit Diesel 6-71 Engine type Inline two-stroke diesel Generator DC generator Traction motors DC traction motors (2) Cylinders 6 (2) Transmission diesel-electric Loco brake Westinghouse 14-ET Air brake Couplers Janney
Performance figures Power output 300 hp (224 kW)
Career Nicknames "critters" Locale North America

Original buyers for the Model 40 included the Electro-Motive Corporation/Electro-Motive Diesel Plant, 1 unit (used as the #2 plant switcher), Defense Plant Corporation, 4 units, the United States Army, 3 units, the United States Navy, 2 units, and the General Motors Cleveland Diesel Division, 1 unit.

In total EMC/EMD manufactured eleven Model 40s during the period April 1940 - April 1943.

Known locomotives

• s/n 1134 Built as EMC 1134 Demonstrator, Later Devco Railway #20, retired to Museum of Industry, Stellarton, Nova Scotia
• s/n 1308 Built for US Rubber, to Old Ben Coal, scrapped
• s/n 1309 Built for US Rubber, to Penn Dixie Cement, retired to Lake Superior Railroad Museum at Duluth, Minnesota

• s/n 1834 Built as USAX 7403, to DPC #1 Cushing Stone Company of Amsterdam, New York
• s/n 1835 Built as DPC #2, to American Steel Foundry 51, to Hoosier Valley Railroad Museum in North Judson, Indiana
• s/n 2284 Built as USAX 7952, to Acme Newport Steel, Newport, KY as NPTX #1. Owned and restored by Professional Loco services in East Chicago, Indiana
• s/n 2285 Built as USAX 7953, to Walkersville Southern Railroad, Walkersville, Maryland
• s/n 2286 Built as USAX 7954, scrapped
• s/n 2287 Built as USN #4, used during WWII by the Naval Ordinance Plant in York, PA to haul bomb casings. Remained on site and served the American Machine and Foundry Company (AMF) and subsequently Harley-Davidson. Now on display at the York County History Center's Agricultural and Industrial Museum in York, Pennsylvania.

• s/n 2288 Built as USN #56-00323, to McDonnell Douglas, retired to Travel Town Museum, Los Angeles, California

• s/n 2289 Built as GM Cleveland (unknown number), scrapped

References

• Extra 2200 South Issue #53 pages 22–23.

External Links

Trains Magazine feature

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