EMD GP9R

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EMD GP9R
Canadian National 4618.jpg
Canadian National (ex-Grand Trunk Western) GP9R #4618
Type and origin
Power type Diesel-electric
Builder General Motors Electro-Motive Division (EMD)
ModelGP9
GP9R
Specifications
Configuration:
   AAR B-B
Gauge 4 ft 8+12 in (1,435 mm) standard gauge
Trucks EMD Blomberg B (Flexicoil on some CN units)
Wheel diameter40 in (1.016 m)
Minimum curve 21° (273 ft (83.21 m) radius)
Wheelbase 40 ft (12.19 m)
Length56 ft 2 in (17.12 m)
Width10 ft 3+12 in (3.14 m)
Height15 ft 12 in (4.58 m)
Loco weight259,500 lb (117,700 kg)
Fuel capacity1,100 US gal (4,200 L; 920 imp gal)
Prime mover EMD 16-567C
RPM range835 max
Engine type V16 Two-stroke diesel
Aspiration Roots blower
Displacement9,072 cu in (148.66 L)
Generator EMD D-12-B
Traction motors (4) EMD D-37-B
Cylinders 16
Cylinder size 8+12 in × 10 in (216 mm × 254 mm)
Performance figures
Maximum speed65 mph (105 km/h)
Power output1,750  hp (1.30 MW)
Tractive effort 64,750 lbf (288.0 kN)
Career
Locale North America

The EMD GP9R was a rebuild from EMD GP9 diesel locomotives that were rebuilt by the Chicago and North Western Transportation Company, Grand Trunk Western Railroad, Southern Pacific Transportation Company.

Contents

History

Chicago and North Western

The Chicago and North Western Transportation Company was willing to rebuild the majority of their older GP9 locomotives and thus had rebuilt a total of 71 units. Each being rebuilt in nine batches. [1]

The first batch was rebuilt between November 1971 and October 1972, with the second batch being rebuilt between June 1972 and October 1973, the third batch being rebuilt between September 1972 and August 1978, the fourth batch being rebuilt in December 1973, the fifth batch being rebuilt between April 1977 and September 1977, the sixth batch being rebuilt between August 1977 and October 1977, the seventh batch being rebuilt between July 1978 and November 1980, and the ninth batch being rebuilt between July 1981 and August 1981. [1]

Grand Trunk Western

The Grand Trunk Western Railroad (GTW) was studying options for a low-horsepower switcher locomotive that would replace their fleet of GP9 units. Following the ending of EMD’s GP15-1 program, and the lowest horsepower locomotive in EMD’s catalogue had concluded the 3,000hp GP59, which used a 710 prime mover.

The GTW decided to fully rebuild the GP9 units into their own GP9R units, specifically by upgrading the electrical systems, engine components, and cabs.

The units were rebuilt by the Grand Trunk Western at their own Battle Creek Shops between 1989 and 1993. The rebuilds had also included solid-state electrical systems, wheel slip control modules, AC generator systems, air and braking system updates, and structural improvements.

The original EMD 567 power assembly was replaced by 645 components for higher reliability and easier part access and the GP9Rs retained their 1,750 horsepower rating.

These units were numbered by the GTW as 4600 – 4611. [2]

Southern Pacific

Southern Pacific GP9R #3191 SP 3191 Perm Outbound June 1991xX (29493792395).jpg
Southern Pacific GP9R #3191

Beginning in 1970 with SP GP9 #3424, all of the pre-existing EMD GP9 diesel locomotives that were on the St. Louis Southwestern Railway (also known as the "Cotton Belt Route") and Southern Pacific's roster were rebuilt into GP9E's and GP9R's with the number series beginning at #3100. [3]

The Southern Pacific Transportation Company began rebuilding their units in 1970, while the St. Louis Southwestern Railway (also known as the "Cotton Belt Route") began rebuilding their units in 1974. Some of their units would be downgraded to switching duties and would do so until the Southern Pacific's merger into Union Pacific Railroad. [3]

Related Research Articles

<span class="mw-page-title-main">Grand Trunk Western Railroad</span> American railroad

The Grand Trunk Western Railroad Company was an American subsidiary of the Grand Trunk Railway, later of the Canadian National Railway operating in Michigan, Illinois, Indiana, and Ohio. Since a corporate restructuring in 1971, the railroad has been under CN's subsidiary holding company, the Grand Trunk Corporation. Grand Trunk Western's routes are part of CN's Michigan Division. Its primary mainline between Chicago and Port Huron, Michigan serves as a connection between railroad interchanges in Chicago and rail lines in eastern Canada and the Northeastern United States. The railroad's extensive trackage in Detroit and across southern Michigan has made it an essential link for the automotive industry as a hauler of parts and automobiles from manufacturing plants.

<span class="mw-page-title-main">EMD GP30</span> Model of American 2250 hp diesel locomotive

The EMD GP30 is a 2,250 hp (1,680 kW) four-axle diesel-electric locomotive built by General Motors Electro-Motive Division of La Grange, Illinois between July 1961 and November 1963. A total of 948 units were built for railroads in the United States and Canada, including 40 cabless B units for the Union Pacific Railroad.

<span class="mw-page-title-main">EMD F7</span> Model of 1500 hp North American cab diesel locomotive

The EMD F7 is a model of 1,500-horsepower (1,100 kW) diesel-electric locomotive produced between February 1949 and December 1953 by the Electro-Motive Division of General Motors (EMD) and General Motors Diesel (GMD).

<span class="mw-page-title-main">EMD SD40-2</span> American diesel-electric locomotive

The EMD SD40-2 is a 3,000-horsepower (2,200 kW) C-C diesel-electric locomotive built by EMD from 1972 to 1989.

<span class="mw-page-title-main">EMD SW900</span> Model of 900 hp American diesel switcher

The EMD SW900 is a diesel switcher locomotive built by General Motors Electro-Motive Division and General Motors Diesel (GMD) between December 1953 and March 1969. Power was provided by an EMD 567C 8-cylinder engine that generated 900 horsepower (670 kW). Built concurrently with the SW1200, the eight-cylinder units had a single exhaust stack. The last two SW900s built by GMD for British Columbia Hydro were built with 8 cylinder 645E engines rated at 1,000 horsepower (750 kW).

<span class="mw-page-title-main">EMD GP7</span> Diesel-electric locomotive

The EMD GP7 is a four-axle (B-B) diesel-electric locomotive built by General Motors Electro-Motive Division and General Motors Diesel between October 1949 and May 1954.

<span class="mw-page-title-main">EMD GP9</span> Model of locomotive built by EMD

The EMD GP9 is a four-axle diesel-electric locomotive built by General Motors' Electro-Motive Division between 1954 and 1959. The GP9 succeeded the GP7 as the second model of EMD's General Purpose (GP) line, incorporating a new sixteen-cylinder engine which generated 1,750 horsepower (1.30 MW). This locomotive type was offered both with and without control cabs; locomotives built without control cabs were called GP9B locomotives.

<span class="mw-page-title-main">EMD GP18</span> American 4-axle diesel locomotive

The EMD GP18 is a 4-axle diesel-electric locomotive built by General Motors, Electro-Motive Division between December 1959 and November 1963. Power was provided by an 16-567D1 16-cylinder engine which generated 1,800 horsepower (1.34 MW). The GP18 replaced the GP9 in EMD's catalog. 350 examples of this locomotive model were built for American railroads, 40 units were built for Mexican railroads, 12 were built for export to a Brazilian railroad, 2 were exported to Peru, and 1 was exported to Saudi Arabia.

<span class="mw-page-title-main">EMD SD7</span> Model of 1500 hp Co′Co′ American diesel locomotive

The EMDSD7 is a model of 6-axle diesel locomotive built by General Motors Electro-Motive Division between May 1951 and November 1953. It had an EMD 567B 16-cylinder engine producing 1,500 horsepower (1.12 MW) for its six traction motors. United States railroads bought 188 units.

<span class="mw-page-title-main">EMD SD9</span> Model of 1750 hp Co′Co′ American diesel locomotive

The EMD SD9 is a model of diesel locomotive built by General Motors Electro-Motive Division between January 1954 and June 1959. An EMD 567C 16-cylinder engine generated 1,750 horsepower (1.30 MW). Externally similar to its predecessor, the SD7, the SD9 was built with the improved and much more maintainable 567C engine.

<span class="mw-page-title-main">EMD SD45</span> Class of diesel-electric locomotives

The SD45 is a six-axle diesel-electric locomotive class built by General Motors Electro-Motive Division between 1965 and 1971. It has an EMD 645E3 twenty-cylinder engine generating 3,600 hp (2,680 kW) on the same frame as the SD38, SD39, SD40, and SDP40. As of 2023, most SD45s have been retired, scrapped or rebuilt to SD40-2 standards.

<span class="mw-page-title-main">EMD SD45X</span> Experimental diesel-electric locomotive

An EMD SD45X is a 6-axle experimental diesel-electric locomotive built by General Motors Electro-Motive Division between June 1970 and February 1971. Power was provided by an EMD 645E3A 20-cylinder engine which generated 4,200 horsepower (3,130 kW).

<span class="mw-page-title-main">EMD GP40-based passenger locomotives</span>

The passenger locomotives derivatives of the General Motors EMD GP40 diesel-electric locomotive have been, and continue to be, used by multiple passenger railroads in North America. For passenger service, the locomotives required extra components for providing steam or head-end power (HEP) for heating, lighting and electricity in passenger cars. Most of these passenger locomotives were rebuilt from older freight locomotives, while some were built as brand new models.

<span class="mw-page-title-main">EMD GP16</span> The EMD GP16 are a series of locomotives rebuilt from existing GP7, GP9 & GP18.

The EMD GP16 are a series of rebuilt diesel-electric locomotives, a result of a remanufacturing program initiated by the Seaboard Coast Line Railroad (SCL) in an effort to spare the cost of purchasing new motive power in the late 1970s. This involved the rebuilding of their aging fleet of EMD GP7, GP9 and GP18 road switchers. 155 locomotives were rebuilt by the SCL.

<span class="mw-page-title-main">EMD GP10</span> Rebuilt locomotive class

The EMD GP10 is a diesel-electric locomotive that is the result of rebuilding a GP7, GP9 or GP18.

<span class="mw-page-title-main">Krauss-Maffei ML 4000</span>

The Krauss-Maffei ML 4000 is a road switcher diesel-hydraulic locomotive, built between 1961 and 1969 by German manufacturer Krauss-Maffei in Munich, Germany. It generated 3,540 horsepower (2,640 kW) from two Maybach V16 engines. 37 examples were built for two North American railroads and one South American railroad.

<span class="mw-page-title-main">EMD SD45R</span> Rebuilt diesel locomotives

The EMD SD45R was a rebuild from EMD SD45 diesel locomotives that were originally built between August 1966 and January 1970 for the Southern Pacific Transportation Company, but were rebuilt by the Southern Pacific themselves under the Southern Pacific's M-99 rebuild program between 1979 and 1985.

<span class="mw-page-title-main">EMD SD7R</span> Rebuilt diesel locomotives

The EMD SD7R was a rebuild from EMD SD7 diesel locomotives that were built by General-Motors Electro-Motive Division for the Southern Pacific Transportation Company.

<span class="mw-page-title-main">Southern Pacific GP9E and GP9R</span>

The Southern Pacific GP9E and GP9R are rebuilds from EMD GP9 diesel locomotives that were built by General-Motors Electro-Motive Division for the St. Louis Southwestern Railway and the Southern Pacific Transportation Company.

<span class="mw-page-title-main">EMD SD10</span> Rebuilt diesel locomotives

The EMD SD10 were a six-axle 1,800 hp diesel locomotive, which was a rebuild from EMD SD7 and SD9 diesel locomotives. These units were rebuilt by the Chicago, Milwaukee, St. Paul and Pacific Railroad/Milwaukee Road between March 1974 and January 1976.

References

  1. 1 2 Strack, Don (March–April 1996). "Chicago and North Western GP7s and GP9s". Diesel Era. Vol. 7, no. 2.
  2. "Grand Trunk Western's GP9 units 4600-4611". www.cnrha.ca. Retrieved 2024-05-25.
  3. 1 2 Strapac (1974) , p. 23-28

Bibliography