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EMD GP40

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EMD GP40
Type and origin
Power typeDiesel-electric
BuilderU.S., General Motors, Electro-Motive Division (EMD)
Canada, General Motors Diesel (GMD)
ModelGP40
Build dateNovember 1965 – December 1971
Total produced1,221
Specifications
Configuration:
 • AARB-B
 • UICBo'Bo'
Gauge4 ft 8+12 in (1,435 mm) standard gauge
Prime moverEMD 16-645E3
Engine typeV16 diesel
Cylinders16
Performance figures
Power output3,000 hp (2.24 MW)
Career
LocaleNorth America

The EMD GP40 is a 4-axle diesel-electric locomotive built by General Motors' Electro-Motive Division between November 1965 and December 1971. It has an EMD 645E3 16-cylinder engine generating 3,000 hp (2,240 kW).

The GP40 is 3 feet (0.914 m) longer than its EMD 567D3A-engined predecessor, the GP35, and distinguished visually by its three 48-inch radiator fans at the rear of the long hood, while the GP35 has two large fans and a smaller one in between. It was built on a 55 ft (16.76 m) frame; the GP35 was built on a 52 ft (15.85 m) frame - as was the GP7, 9, 18, and 30. The difference in length can be seen in the GP40's ten handrail stanchions compared to the GP35's nine.[1]

1,187 GP40s were built for 28 U.S. railroads; 16 were built for one Canadian carrier, Canadian National; and 18 were built for two Mexican carriers, Ferrocarril Chihuahua al Pacífico and Ferrocarriles Nacionales de México. 60 units were built with high-short-hoods and dual control stands for Norfolk & Western Railway. Two passenger versions, the GP40P and GP40TC, were also built, but on longer frames to accommodate steam generators and HEP equipment.

On January 1, 1972, the GP40 was discontinued and replaced by the GP40-2, which has a modular electrical system and a few minor exterior changes.

Images

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Original owners

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Railroad Quantity Road Numbers Notes
Atlanta and West Point Railroad 7 726-732
Atlantic Coast Line Railroad 15 915-929 To Seaboard Coast Line 1500-1514
Baltimore and Ohio Railroad 161 3684-3779, 4000-4064
Chesapeake and Ohio Railway 50 3780-3794, 4065-4099 3794 was the last GP40 built
Ferrocarril Chihuahua al Pacífico 18 1000-1007
Chicago, Burlington and Quincy Railroad 40 170-189, 620-639
Canadian National Railway 16 4002-4017 Built by General Motors Diesel (GMD) for use in Canada
De Queen and Eastern Railroad 1 D-7
Denver and Rio Grande Western Railroad 43 3051-3093
Detroit, Toledo and Ironton Railroad 6 400-405
Florida East Coast Railway 10 401-410
Georgia Railroad and Banking Company 4 751-754
Illinois Central Railroad 75 3000-3074
Louisville and Nashville Railroad 30 3000-3029
Milwaukee Road 72 153-199, 2047-2071 2068-2071 were EMD warranty loaners
Missouri–Kansas–Texas Railroad 61 170-230
Norfolk and Western Railway 60 1329-1388 High-nose
Ferrocarriles Nacionales de México 10 8400-8409
New York Central Railroad 105 3000-3104 3036 was the first GP40 built. To Penn Central.
Penn Central Transportation Company 170 3105-3274 3260-3274 were EMD warranty loaners
Richmond, Fredericksburg and Potomac Railroad 7 121-127
Chicago, Rock Island and Pacific Railroad 77 340-396, 4700-4719 Financed by Union Pacific, because of the proposed UP-RI merger
Seaboard Air Line Railroad 51 600-650 To Seaboard Coast Line 1515-1565
Seaboard Coast Line Railroad 70 1566-1635
Soo Line Railroad 4 732-735
St. Louis Southwestern Railway (Cotton Belt) 8 7600-7607
Texas, Oklahoma and Eastern Railroad 3 D-12 - D-14
Toledo, Peoria and Western Railway 1 1000 Ex-EMD warranty loaner
Western Railway of Alabama 7 701-707
Western Maryland Railway 5 3795-3799
Western Pacific Railroad 44 3501-3544 3501-3516 built with large Pyle single headlight
Totals 1,221

Rebuilds

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GP40N

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Union Pacific has rebuilt 129 of their GP40's and GP40-2's into GP40N's at their Jenk's shop. These units received a microprocessor control system to increase adhesion, control options, and extend the life of the locomotive.[2][3]

GP22ECO

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The GP22ECO is a locomotive built from recycled GP40/GP40-2 parts. The frame, trucks, and carbody are refurbished, while the 16-645 engine is replaced with a new 8-710-ECO engine. The electrical system is replaced with a modern microprocessor-based system. Horsepower is reduced to 2,150 due to the smaller engine.

Preservation

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See also

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References

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  1. ^ Pinkepank 1973, pp. 67–68.
  2. ^ Craig, R. "Union Pacific Motive Power". The Diesel Shop. Archived from the original on 28 December 2023. Retrieved 2024-03-15.
  3. ^ "Union Pacific Locomotive Roster". Up.com. Archived from the original on 4 January 2024. Retrieved 15 March 2024.
  4. ^ "B&O #3684". B&O. Archived from the original on 15 March 2024. Retrieved 15 March 2024.
  5. ^ "HawkinsRails - B&O Railroad Museum Diesels". hawkinsrails.net. Retrieved 2024-03-09.