NFLShop.com - NFL Jerseys and Gear

EMD GP15-1, GP15AC, and GP15T Diesel-Electric Locomotives

EMD GP15-1

The EMD GP15-1 is a 4-axle diesel-electric locomotive built by General Motors Electro-Motive Division between June 1976 and March 1982. Intended to provide an alternative to the rebuilding programs that many railroads were applying to their early road switchers, it is generally employed as a yard switcher or light road switcher. This locomotive is powered by a 12-cylinder EMD 645E engine, which generates 1,500 hp (1,119 kW). The GP15-1 uses a 50-foot-9-inch (15.47 m) frame, has a wheelbase of 29 ft 9 in (9.07 m) and has a length over couplers of 54 ft 11 in (16.74 m). A total of 310 units were built for American railroads. A number of GP15-1s remain in service today for yard work and light road duty. The radiator section is similar to those found on the EMD SD40T-2 and EMD SD45T-2 "tunnel motors," leading some observers to incorrectly identify the units as such or as GP15Ts, and giving them the nickname "baby tunnel motors".

Original Owners
Missouri Pacific Railroad
The Missouri Pacific Railroad purchased more units than the other three buyers combined. For spotting purposes, the MP models have a number of visually distinguishing features, though not all were applied consistently to the MP units:

The MP units have a grab iron ladder mounted on both sides of the long hood end;
MP's initial order of GP15-1s rode on Blomberg M trucks rather than the more common Blomberg B (all subsequent units were delivered with Blomberg B trucks) — and, while the standard Blomberg B truck carries two brake shoes per wheel, many MP units were equipped with only a single brake shoe per wheel;
Nos. 1555–1574 were outfitted with the standard 81" nose, while the remaining units (all built in December 1976 or later) came with an 88" nose.

Complete list
Railroad: Chicago and North Western Railway

Quantity: 25
Notes: Most still in service with Union Pacific Railroad.

Railroad: Conrail

Quantity: 100
Road numbers: 1600-1699
Notes: Some units still in service with CSX Transportation. All retired by Norfolk Southern Railway.

Railroad: Missouri Pacific Railroad

Quantity: 160
Notes: Most still in service with Union Pacific Railroad.

Railroad: St. Louis-San Francisco Railway

Quantity: 25
Road numbers: 100-124
Notes: Most are in service with BNSF Railway. Some traded to GMTX for GP38-2's.

EMD GP15-1 Overview
Type and origin
Power type: Diesel-electric
Builder: General Motors Electro-Motive Division (EMD)
Model: GP15-1
Build date: June 1976 – March 1982
Total produced: 310
Specifications
Configuration:
​ • AAR B-B
Gauge: 4 ft 8 1⁄2 in (1,435 mm) standard gauge
Length: 54 ft 11 in (16.74 m)
Locomotive weight: 246,000 lb (111,600 kg)
Fuel capacity: 2,400 imp gal (11,000 l; 2,900 US gal)
Prime mover: EMD 645E
Engine type: V12 2-stroke diesel
Aspiration: Roots blower
Displacement: 7,740 cu in (126.8 L)
Cylinders: 12
Cylinder size: 9.1 in × 10 in (231 mm × 254 mm)
Transmission: diesel electric
Locomotive brake: Straight air
Train brakes: 26-L air
Performance figures
Power output: 1,500 hp (1,100 kW)
Tractive effort: 47,000 lbf (210 kN)
Career
Locale: United States

EMD GP15AC
An EMD GP15AC is a 4-axle diesel-electric locomotive built by General Motors Electro-Motive Division between November and December 1982. This locomotive differs from the otherwise identical EMD GP15-1 due to Missouri Pacific specifying new AR10 AC alternators instead of rebuilt D32 DC generators. The only external difference between the GP15AC and the GP15-1 is a straight side sill (shared with the EMD GP15T) not related to the transmission difference.

30 examples of this locomotive model were built for Missouri Pacific Railroad, with four units built for Venezuela's IFE.

Original Owner
Railroad: Missouri Pacific Railroad

Quantity: 30
Road numbers: 1715-1744.
Notes: To Union Pacific as UPY Nos. 715-744.

EMD GP15AC Overview
Type and origin
Power type: Diesel-electric
Builder: General Motors Electro-Motive Division (EMD)
Build date: November and December 1982
Total produced: 34
Specifications
Configuration:
​ • AAR B-B
Gauge: 4 ft 8 1⁄2 in (1,435 mm) standard gauge
Career
Locale: United States

EMD GP15T
An EMD GP15T is a 4-axle diesel-electric locomotive built by General Motors Electro-Motive Division between October 1982 and April 1983. It was a very close cousin to the GP15-1, but used a turbocharger in order to generate more power from a smaller engine. Power was provided by an 8-cylinder diesel engine that generated 1,500 hp (1.12 MW), the same as the GP15-1, but with four fewer cylinders.

28 examples of this locomotive model were built for American railroads. The Chessie System received the majority of them as C&O 1500-1524 (25 units), while the rest went to the Apalachicola Northern in Florida as AN 720-722 (3 units).

Chessie Systems GP15Ts are equipped with dynamic braking and the optional inertial air filtration system, whereas ANs GP15Ts do not have dynamic braking, and also uses the standard non-inertial intake system.

EMD GP15T Overview
Type and origin
Power type: Diesel-electric
Builder: General Motors Electro-Motive Division (EMD)
Model: GP15T
Build date: October 1982 – April 1983
Total produced: 28
Specifications
Configuration:
​ • AAR B-B
Gauge: 4 ft 8 1⁄2 in (1,435 mm)
Cylinders: 8
Locomotive brake: Straight air, dynamic
Train brakes: Air
Performance figures
Power output 1,500 hp (1.12 MW)
Career
Locale: United States

See also:

Electro Motive

EMD Locomotives

Diesel-Electric Locomotives

Locomotives

Union Pacific Yard (UPY) No. 742, an EMD GP15-1, idles in Union Pacific's Global 1 intermodal yard in Chicago, IL.

GM EMD logo
Click here to shop for train and railroad collectibles on eBay.
Union Pacific Yard (UPY) No. 742, an EMD GP15-1, idles in Union Pacific's Global 1 intermodal yard in Chicago, IL.

Classic Streamliners - TRAIN​CYCLOPEDIA

Enter the Classic Streamliners Bookstore.
Shop for Trains and Railroad Collectibles on eBay
Shop for Railroad and Train Collectibles on eBay
Enter the Classic Streamliners Bookstore.
NFLShop.com - NFL Jerseys and Gear