EMD E8

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EMD E8
Rock Island locomotive 652.jpg
Type and origin
Power type Diesel-electric
Builder General Motors Electro-Motive Division (EMD)
Model E8
Build date August 1949 – January 1954
Total produced 450 A units, 46 B units
Specifications
AAR wheel arr. A1A-A1A
Gauge 4 ft 8 12 in (1,435 mm)
Trucks EMD Blomberg A-1-A passenger
Wheel diameter 36 in (910 mm)
Minimum curve 21° (274.37 ft or 83.63 m radius)
Length 70 ft 3 in (21.41 m)
Width 10 ft 7 12 in (3.239 m)
Height 14 ft 7 in (4.45 m)
Locomotive weight A unit: 315,000 lb (143,000 kg), B unit: 290,000 lb (130,000 kg)
Prime mover (2) EMD 567B
Engine type V12 Two-stroke diesel
Aspiration Roots-type supercharger
Displacement 6,804 cu in (111.50 L) each
Generator (2) EMD D-15-A
Traction motors (4) GM D-27-B
Cylinders (2) 12
Performance figures
Maximum speed 85 mph (137 km/h)
Power output 2,250 hp (1,678 kW) total
Tractive effort 56,500 lb (25,600 kg) starting, 31,000 lb (14,000 kg) continuous
Career
Locale United States
Disposition most scrapped, several preserved

The E8 was a 2,250-horsepower (1,678 kW), A1A-A1A passenger-train locomotive built by General Motors' Electro-Motive Division (EMD) of La Grange, Illinois. 450 cab versions, or E8As, were built from August 1949 to January 1954, 447 for the U.S. and 3 for Canada. 46 E8Bs were built from December 1949 to January 1954, all for the U.S. The 2,250 hp came from two 12 cylinder model 567B engines, each driving a generator to power the two traction motors on one truck. The E8 was the ninth model in the line of passenger diesels of similar design known as EMD E-units.

In profile the front of the nose of E7, E8, and E9 units is less slanted than earlier EMD units, and E7/8/9s (and their four axle cousins, the F-unit series) have been nicknamed “bulldog nose” units. Earlier E-unit locomotives were nicknamed “slant nose” units. After passenger trains were canceled on the Erie Lackawanna in 1970, the E8s were re-geared for freight and were very reliable for the EL. These units were on freight trains until the early years of Consolidated Railroad Corporation ("Conrail").

Units noted with the designation E8m were rebuilt using components from earlier EMC/EMD locomotives. Externally the units look just like E8s. The difference in horsepower produced in these E8m units is because the older generators are reused.

Original owners[edit]

Railroad Quantity
A units
Quantity
B units
Road numbers
A units
Road numbers
B units
Notes
Electro-Motive Division (demonstrator)
1
5600A
to Southern Pacific 6018
Electro-motive Division (demonstrator)
1
952
to Rock Island 643 1st E8A built
Electro-motive Division (demonstrator)
2
810-811
to Delaware Lackawanna & Western 810-811
Atchison, Topeka and Santa Fe Railway
2
83A–84A
Model E8m
8
3
2, 4, 5, 82, 84–87
4A, 80A, 82A
Model E8m, rebuilt from E1A and E1B
Atlantic Coast Line Railroad
6
532, 544–548
532 rebuilt from E7
1
500
Model E8m, rebuilt from E3A
Boston and Maine Railroad
1
3821
to Missouri Pacific 42 in 1962
Baltimore and Ohio Railroad
16
26,A–32,A, 90,A–96,A
Even numbers only
5
6
51, 53–56
51X–56X
Model E8m, rebuilt from EA and EB
Chicago, Burlington and Quincy Railroad
38
9937B, 9938A,B–9948A,B, 9949A, 9964–9977
Central of Georgia Railway
2
811–812
Chicago and North Western Railway
22
5019B, 5021A,B–5030A,B, 5031A
5019B rebuilt from E7
Chicago, Rock Island and Pacific Railroad
13
644–656
656 is Model E8m
Chesapeake and Ohio Railway
31
4000–4030
Canadian Pacific Railway
3
1800–1802
Bought for joint Boston and Maine service in New England; only E-units purchased new by a Canadian railroad. 1800 and 1802 to VIA Rail.
Delaware, Lackawanna and Western Railroad
9
812–820
EMD Demonstrators 810-811 became DL&W 810-811
Erie Railroad
14
820–833
Fort Worth and Denver Railway
2
9981A,B
Gulf, Mobile and Ohio Railroad,
1
100A
Model E8m, rebuilt from an ex-B&O EA
Illinois Central Railroad
16
2
4018–4033
4104–4105
Kansas City Southern Railway
4
26–29
1
23
Model E8m, rebuilt from E3A
Louisville and Nashville Railroad
4
794–797
Missouri-Kansas-Texas Railroad
9
106A,B, 107A,B, 131–135
Missouri Pacific Railroad
4
7018–7021
renumbered 38–41
New York Central Railroad
62
4036–4095, 4003, 4020
Pennsylvania Railroad
74
5700A–5716A, 5760A–5769A, 5788A–5799A, 5801A–5810A, 5835A–5839A, 5884A–5899A, 5902A–5905A
5762 to New York Central 4097
Richmond, Fredericksburg and Potomac Railroad
15
5
1001–1015
1051—1055
Seaboard Air Line Railroad
11
3049–3059
to Seaboard Coast Line 588-598
St. Louis-San Francisco Railway
17
2006–2022
All named after a Kentucky Derby winner, hence the name of their paint scheme
Southern Railway
7
2923–2929
renumbered 6900-6905, 6916
Southern Railway (New Orleans and North Eastern)
10
6906–6915
Texas and Pacific Railway
8
2010–2017
renumbered 30–37
Union Pacific Railroad
18
24
925–942
926B–949B
4
922B–925B
rebuilt from E2B
Wabash Railroad
14
1003–1015, 1000
Totals 450 46

Surviving examples[edit]

Inside Cab view. The Engineer / Operator position of an E8A

It is estimated that 58 E8s have survived into preservation.[1] The former NYC 4085, preserved at the New York Central Railroad Museum, was the lead locomotive on the final eastbound 20th Century Limited.[2] Another surviving E8 is operated by the Midland Railway, in Baldwin City, Kansas. Privately owned, this unit is ex-Chicago, Rock Island & Pacific Railroad E8A #652 and is used for special events. NYC 4096, recently restored, is also on display. New York Central 4097, privately owned, is on display at Merli Manufacturing Company in Duanesburg, New York.

Southern Railway E8A unit #6900 is operational at the North Carolina Transportation Museum in Spencer, North Carolina. It pulled the Southern Crescent. Southern #6901 is on display in Duluth, GA, at the Southeastern Railway Museum. Another Southern Railway E8 #6913 is being restored at the Southern Appalachia Railway Museum in Oak Ridge, TN for their Southern excursion train. Yet another, Southern #6914, is under restoration at Tennessee Valley Railroad Museum.

Of the units owned by Conrail, three were saved after their freight-service retirement and went on to be refurbished by the Juniata Locomotive Shops in Altoona, PA for use as Conrail's Office Car Special (OCS) until the merger of 1999. One unit went to CSX, and two were sold off to Bennett Levin, CEO of the Juniata Terminal Company, where they have been overhauled and painted as twin Pennsylvania Railroad E8's. Another, the former EL 833, was purchased by the New York and Greenwood Lake Railroad. The unit was repainted in its original livery as Erie 833, and was on display for a while on the turntable at Port Jervis, NY. In June 2008, two authentic New York Central E8's units (4080 & 4068) were brought to the Medina Railroad Museum in Western New York.[3]

See also[edit]

References[edit]

Notes[edit]

  1. ^ "Surviving E Units List". Andrew Toppan. Retrieved 2007-08-05. 
  2. ^ "National New York Central Railroad Museum - Tour". nycrrmuseum.org. Retrieved 2007-08-05. 
  3. ^ "New York Central System Historical Society". Nick Wilson. 

Bibliography[edit]

  • Dorin, Patrick C. (1972). Chicago and North Western Power. Superior Publishing. p. 132. ISBN 0-87564-715-4. 
  • Lamb, J. Parker (2007). Evolution of the American Diesel Locomotive. Railroads Past and Present. Bloomington, IN, USA: Indiana University Press. ISBN 9780253348630. 
  • Marre, Louis A. (1982). Rock Island Diesel Locomotives - 1930-1980. Railfax, Inc. ISBN 0-942192-00-1.
  • Marre, Louis A. (1995). Diesel Locomotives: The First 50 Years: A Guide to Diesels Built Before 1972. Railroad Reference Series (Book 10). Waukesha, WI, USA: Kalmbach Publishing. ISBN 0890242585. 
  • Pinkepank, Jerry A. (1973). The Second Diesel Spotter’s Guide. Milwaukee, WI: Kalmbach Publishing Company. pp. EMD–124. ISBN 0-89024-026-4. 
  • Reich, Sy (1973). Diesel Locomotive Rosters – The Railroad Magazine Series. Wayner Publications. No Library of Congress or ISBN.
  • Schafer, Mike (1998). Vintage Diesel Locomotives. Enthusiast Color Series. Osceola, WI, USA: MBI Publishing. ISBN 0760305072. 
  • Solomon, Brian (2000). The American Diesel Locomotive. Osceola, WI, USA: MBI Publishing. ISBN 0760306664. 
  • Solomon, Brian (2006). EMD Locomotives. St. Paul, MN, USA: Voyageur Press. ISBN 9780760323960. 
  • Solomon, Brian (2010). Vintage Diesel Power. Minneapolis, MN, USA: MBI Publishing. ISBN 9780760337950. 
  • Solomon, Brian (2011). Electro-Motive E-Units and F-Units: The Illustrated History of North America's Favorite Locomotives. Minneapolis, MN, USA: Voyageur Press. ISBN 9780760340073. 
  • Solomon, Brian (2012). North American Locomotives: A Railroad-by-Railroad Photohistory. Minneapolis, MN, USA: Voyageur Press. ISBN 9780760343708. 
  • Wilson, Jeff (2002). E Units: Electro-Motive's Classic Streamliners. Classic Trains / Golden Years of Railroading series. Waukesha, WI, USA: Kalmbach Publishing. ISBN 0890246068. 

External links[edit]