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EMD DIESEL LOCOMOTIVES


EMD GP15AC

Technical Data And Photos



Type: Four-axle road switcher - diesel-electric locomotive.

Model: GP15AC
GP = General Purpose, 15 = 1500 hp

Build date: November and December 1982

Builder: General Motors Electro-Motive Division (EMD), USA

Locale: USA, Venezuela


Total produced: 34

First owner:

Missouri Pacific Railroad, USA
Quantity: 30
Numbers: 1715 - 1744

Second owner:

Union Pacific Railroad, USA
Quantity: 30
Numbers: Y715-Y744

Export:

IAFFE Venezuela
FC Nacionales (Venezuela); impingement filters, d/b; also listed as GP15-1AC or GP15-2
Quantity: 4
Numbers: L-007 - L-010

Technical Specifications:

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.

Track gauge: 1 435 mm (4'8.5") standard gauge

Wheel arrangement: B-B

Number of axles: 4

Engine:
Type: Two-stroke 45-degree V12 diesel engine.
Model: GM 645E
Power output: 1120 kW (1500 hp)
Number of cylinders: 12
Displacement: 126.8 L (7,740 in3)
Displacement per cylinder: 10.6 L (645 in3)
Bore: 231 mm (9.1 in)
Stroke: 254 mm (10 in)
Aspiration: roots blower
Valvetrain: Intake ports in each cylinder liner, 4 exhaust valves in each cylinder head.
Oil system: Forced lubrication system, wet sump.
Cooling: water-cooled


Main alternator:
AR10 AC

Number of traction motors: 4

Truck assemblies:
Two motor-four wheel truck assemblies with outside swinghanger suspension.

Total loaded weight on rails: 109 000 kg (261,000 lbs)


Supplies:
Fuel tank: 9085 L (2,400 US gal)
Cooling water: 870 L (230 US gal)
Lubricating oil: 625 L (165 US gal)
Sand: 56 cu. ft.

Dimensions:
Wheel diameter: 1016 mm (40")
Length: 17 120 mm (56' 2")
Distance between bolster centers: 9070 mm (29'9")
Truck-rigid wheel base: 2740 mm (9'0")
Height: 4620 mm (15' 2")
Minimum curve radius: 37 m (120')


Brakes: air brake


Tractive effort: 233.5 kN (52,500 lbs)

Gear ratio: 62:15

Maximum speed: 113 km/h (70 mph)


EMD GP15AC
EMD GP15AC diesel locomotive - Missouri Pacific MP 1729.
Mt. Vernon, Illinois, Western Railroad, USA.
Taken on: 28 April 1990
Size of the photo: 1600 900 pixels, 667 kB
Author of the photo: Gary Todd


EMD GP15AC diesel locomotive - Missouri Pacific MP 1729
EMD GP15AC diesel locomotive - Missouri Pacific MP 1729.
Mt. Vernon, Illinois, Western Railroad, USA.
Taken on: 28 April 1990
Size of the photo: 4752 3168 pixels, 1.77 MB
Author of the photo: Gary Todd


Freight train, Camanche, Iowa, the United States of America
A freight train, Camanche, Iowa, the United States of America.
UPY 735 - EMD GP15AC locomotive heading a freight train.
Local job heading to Equistar.
Taken on: 3 September 2014
Size of the photo: 2048 1366 pixels, 2.00 MB
Author of the photo: Jim Hamilton
License: (CC BY 2.0)


UPY 720 - EMD GP15AC locomotive pulling a short freight train
UPY 720 - EMD GP15AC locomotive pulling a short freight train.
Local job heading to DeWitt, Iowa, the United States of America.
Taken on: 26 September 2014
Size of the photo: 2048 1366 pixels, 2.84 MB
Author of the photo: Jim Hamilton
License: (CC BY 2.0)


EMD GP15AC locomotive
Delivering cars to Equistar, Iowa, the United States of America.
UPY 726 - EMD GP15AC locomotive.
Taken on: 12 February 2015
Size of the photo: 2048 1365 pixels, 2.39 MB
Author of the photo: Jim Hamilton
License: (CC BY 2.0)


Three diesel locomotives of Union Pacific Railroad pulling a freight train, the United States of America
Three diesel locomotives of Union Pacific Railroad pulling a freight train in Whiteside, Illinois, the United States of America.
UPY 719 - EMD GP15AC locomotive heading a freight train.
LST01 heading back to Sterling, Illinois, USA.
Taken on: 23 February 2015
Size of the photo: 2048 1366 pixels, 1.85 MB
Author of the photo: Jim Hamilton
License: (CC BY 2.0)


Two locomotives pulling a freight train, the United States of America
Two locomotives pulling a freight train in Camanche, Iowa, the United States of America.
UPY 727 - EMD GP15AC locomotive heading a freight train.
Local job heading to Eqistar.
Taken on: 4 March 2015
Size of the photo: 2048 1366 pixels, 2.92 MB
Author of the photo: Jim Hamilton
License: (CC BY 2.0)


American freight train
An american freight train.
UPY 722 - EMD GP15AC locomotive heading a freight train.
LST01 heading back to Sterling, Illinois, USA.
Taken on: 4 March 2016
Size of the photo: 2048 1365 pixels, 2.00 MB
Author of the photo: Jim Hamilton
License: (CC BY 2.0)


Two diesel locomotives of Union Pacific Railroad, UPY 739 EMD GP15AC and UP 1140
Two diesel locomotives of Union Pacific Railroad, UPY 739 EMD GP15AC and UP 1140.
The United States of America.
Taken on: 5 September 2016
Size of the photo: 1200 800 pixels, 337 kB
Author of the photo: Milwaukee beerNut
License: (CC BY-SA 2.0)


Two EMD GP15AC diesel locomotives, UPY 733 and UPY 724 of Union Pacific Railroad
Two EMD GP15AC diesel locomotives, UPY 733 and UPY 724 of Union Pacific Railroad, Illinois, USA.
Taken on: 22 June 2017
Size of the photo: 756 568 pixels, 394 kB
Author of the photo: Jim Hamilton
License: (CC BY 2.0)
The image was extracted from the original photo.
The original photo is over.


Four diesel locomotives pulling a freight train, the United States of America
Four diesel locomotives pulling a freight train in Clinton, Iowa, the United States of America.
UPY 733 - EMD GP15AC locomotive heading a freight train.
LST01 heading back to Sterling, Illinois, USA.
Taken on: 22 June 2017
Size of the photo: 2048 1365 pixels, 2.51 MB
Author of the photo: Jim Hamilton
License: (CC BY 2.0)


UPY 728 - EMD GP15AC locomotive, Smith Park, Chicago, Illinois, USA
UPY 728 - EMD GP15AC locomotive, Smith Park, Chicago, Illinois, USA.
While waiting for a train at Western Ave.
UP-Metra engine lash up returning from OTC, UPY 728 headed east.
Taken on: 4 August 2017
Size of the photo: 4000 2250 pixels, 2.00 MB
Author of the photo: railsr4me
License: (CC BY-ND 2.0)




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