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EMD GP40-2

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EMD GP40-2
A string of 3 EMD GP40-2 locomotives at Framingham, Massachusetts.
Type and origin
Power typeDiesel-electric
BuilderGeneral Motors Electro-Motive Division
General Motors Diesel (GMD)
ModelGP40-2
Build date1972–1986
Total produced1,143
Specifications
Configuration:
​
 • AARB-B
 • UICBo'Bo'
Gauge4 ft 8+1⁄2 in (1,435 mm) standard gauge
Wheel diameter40 in (1.016 m)
Wheelbase43 ft (13.11 m)
Length59 ft 2 in (18.03 m)
Width10 ft 4 in (3.15 m)
Height15 ft 5 in (4.70 m)
Loco weight250,000 lb (113,398 kg)
Prime moverEMD 16-645E3
Engine typeV16 diesel
AspirationTurbocharged
Cylinders16
Performance figures
Maximum speed65 mph (105 km/h)
Power output3,000 hp (2.24 MW)
Tractive effort61,000 lbf (27,669 kgf)

The EMD GP40-2 is a 4-axle diesel-electric locomotive built by General Motors Electro-Motive Division as part of its Dash 2 line between April 1972 and December 1986. The locomotive's power is provided by an EMD 645E3 16-cylinder engine which generates 3,000 horsepower (2.24 MW).

Production

Standard GP40-2 production totaled 861 units, with 817 built for U.S. railroads, 44 for Mexican railroads. Furthermore, 279 GP40-2s were built by General Motors Diesel (GMD) between 1974 and 1976. In addition, three GP40P-2s, passenger versions of the GP40-2, were built in 1974. Total production of the GP40-2 and its variations totaled 1,143 units.

Performance

With the 62:15 gearing (65-70 mph maximum) EMD rated the GP40-2 at 55,400 lb continuous tractive effort. Some had PF21 module that reduced the output below 23 mph, lowering continuous speed down to 11 mph.

Original buyers

This section does not cite any sources. Please help improve this section by adding citations to reliable sources. Unsourced material may be challenged and removed. (May 2018) (Learn how and when to remove this message)
Owner Quantity Numbers Notes
Atlanta and West Point Rail Road 1 733 to Seaboard System Railroad to CSX
Alaska Railroad 10 3000, 3007–3015 3000 renumbered to 3006
Baltimore and Ohio Railroad 218 4100–4162, 1977, GM50, 4185–4256, 4287–4311, 4322–4351, 4422–4447 Chessie System paint to CSX
Boston and Maine Railroad 18 300–317
Chesapeake and Ohio Railway 95 4165–4184, 4267–4281, 4372–4421 Chessie System paint to CSX
Ferrocarril Chihuahua al Pacífico 29 1008–1036
Conrail 129 3275–3403 To CSX and Norfolk Southern Railway,
Denver and Rio Grande Western Railroad 37 3094–3130 All to Union Pacific Railroad.
U.S. Department of Transportation 1 003
Detroit, Toledo and Ironton Railroad 20 406–425 to Grand Trunk Western Railroad 6406–6425.
Florida East Coast Railway 24 411–434 433–434 were last built
Georgia Railroad 2 755–756 to Seaboard System Railroad to CSX
Kansas City Southern Railway 4 796–799
Louisville and Nashville Railroad 17 6600–6616 Family Lines Paint, to Seaboard System Railroad to CSX
Reading Company 5 3671–3675 to Conrail
Richmond, Fredericksburg and Potomac Railroad 7 141–147 to CSX
St. Louis – San Francisco Railway ("Frisco") 25 750–774 to Burlington Northern 3040–3064
St. Louis Southwestern Railway ("Cotton Belt") 56 7248–7273, 7628–7657
Seaboard Coast Line Railroad 25 1636–1656. 6617–6621 6617–6621 Family Lines paint; all to Seaboard System Railroad now CSX
Ferrocarril Sonora-Baja California 15 2104–2112, 2309–2314 2104-2112 have High short hoods w/steam generator for passenger service only GP40-2 built with high short hoods
Southern Pacific Transportation Company 68 7240–7247, 7608–7627, 7658–7677, 7940–7959
Texas, Oklahoma and Eastern Railroad 3 D15–D16, D20
Western Maryland Railway 35 4257–4261,4312–4321, 4352–4371 Chessie System paint to CSX
Western Pacific Railroad 15 3545–3559
Western Railway of Alabama 1 708 to Seaboard System Railroad to CSX
Total 861
GP40-2LW
MEC 507, a GP40-2LW locomotive. This locomotive was originally built for CN but later sold.
Railroad Quantity Road numbers Notes
Canadian National Railway 268 CN 9400–9667, 9668–9677 CN 9400–9632 are GP40-2L, 9633–9677 are GP40-2W.
CN 9668–9677 are former GO Transit units purchased in 1991.
GO Transit 11 GO 700–710 Ten to CN 9668–9677 in 1991. One (703) to Miami Tri-Rail, later sold to Aberdeen, Carolina & Western #703.
Total 279
GP40P-2
SP GP40P-2 #3197
Railroad Quantity Road numbers Notes
Southern Pacific Transportation Company 3 3197-3199 renumbered to 7600,7601 & 7602. 7601 and 7602 went to UP as 1373 & 1375. 7600 went to IHB as 4010
Total 3

Rebuilds

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.

CSX has rebuilt only one GP40-2 locomotive, numbered 6041 (originally BO 4141), into a hydrogen fuel cell locomotive in collaboration with CPKC on April 16, 2024. The unit's road number is 2100, and classified as GP38H2.

Preservation

• Sonora Baja California 2107 is now preserved in a Museum in Mexicali, MX

See also

References

  1. "MEC 507". 2022-11-06. Retrieved 2022-11-06.
  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. Stephens, Bill (April 16, 2024). "CSX debuts its first hydrogen-fuel cell locomotive (updated)". Trains. Trains. Retrieved June 26, 2024. CSX did rebuild a GP40-2 for the first time at the Huntington shop.

External links

4-axle road switchers built by EMD
(See also: List of EMD locomotives)
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