The E9 is a , A1A-A1A

passenger train A passenger train is a train used to transport people along a railroad line. These trains may consist of unpowered passenger railroad cars (also known as coaches or carriages) hauled by one or more locomotives, or may be self-propelled; self pr ...

-hauling

diesel locomotive A diesel locomotive is a type of railway locomotive in which the prime mover is a diesel engine. Several types of diesel locomotives have been developed, differing mainly in the means by which mechanical power is conveyed to the driving whee ...

built by

General Motors The General Motors Company (GM) is an American Multinational corporation, multinational Automotive industry, automotive manufacturing company headquartered in Detroit, Michigan, United States. It is the largest automaker in the United States and ...

' Electro-Motive Division of

La Grange, Illinois ''(the barn)'' , nickname = , motto = ''Tradition & Pride – Moving Forward'' , anthem = ''My La Grange'' by Jimmy Dunne , image_map = File:Cook County Illinois Incorporated and Unincorporated areas La Grange Highlighted.svg , mapsize = 26 ...

, between April 1954 and January 1964. 100 cab-equipped

A unit A, or a, is the first letter and the first vowel of the Latin alphabet, used in the modern English alphabet, the alphabets of other western European languages and others worldwide. Its name in English is ''a'' (pronounced ), plural ''aes'' ...

s were produced and 44 cabless booster

B unit B, or b, is the second letter of the Latin-script alphabet, used in the modern English alphabet, the alphabets of other western European languages and others worldwide. Its name in English is '' bee'' (pronounced ), plural ''bees''. It re ...

s, all for service in the United States. The E9 was the tenth and last model of EMD E-unit and differed from the earlier E8 as built only by the newer engines and a different, flusher-fitting mounting for the headlight glass, the latter being the only visible difference. Since some E8s were fitted with this, it is not a reliable way to distinguish the two. The E9 has two ,

V12 V12 or V-12 may refer to: Aircraft * Mil V-12, a Soviet heavy lift helicopter * Pilatus OV-12, a planned American military utility aircraft * Rockwell XFV-12, an American experimental aircraft project * Škoda-Kauba V12, a Czechoslovak experim ...

model 567C engines, each engine driving one

generator Generator may refer to: * Signal generator, electronic devices that generate repeating or non-repeating electronic signals * Electric generator, a device that converts mechanical energy to electrical energy. * Generator (circuit theory), an eleme ...

to power two traction motors.

Engine and powertrain

The E9 uses twin 12 cylinder 567C engines developing a total of at 800

rpm Revolutions per minute (abbreviated rpm, RPM, rev/min, r/min, or with the notation min−1) is a unit of rotational speed or rotational frequency for rotating machines. Standards ISO 80000-3:2019 defines a unit of rotation as the dimensionl ...

. Designed specifically for railroad locomotives, this Roots-blown, mechanically-aspirated 2-stroke 45-degree V-type, with an ,

bore Bore or Bores often refer to: *Boredom * Drill Relating to holes * Boring (manufacturing), a machining process that enlarges a hole ** Bore (engine), the diameter of a cylinder in a piston engine or a steam locomotive ** Bore (wind instruments), ...

stroke A stroke is a medical condition in which poor blood flow to the brain causes cell death. There are two main types of stroke: ischemic, due to lack of blood flow, and hemorrhagic, due to bleeding. Both cause parts of the brain to stop functionin ...

, giving displacement per cylinder, remained in production until 1966. Two D.C. generators, one per engine, provide power to four motors, two on each truck, in an A1A-A1A arrangement. This truck design was used on all E units and on MP 7100 and CB&Q 9908 power cars. EMD has built all of its major components since 1939.

Operation

The E9 powered American passenger and mail trains from the 1950s into the late 1970s. Many of America's finest trains — such as Union Pacific Railroad's "City" fleet,

Burlington Burlington may refer to: Places Canada Geography * Burlington, Newfoundland and Labrador * Burlington, Nova Scotia * Burlington, Ontario, the most populous city with the name "Burlington" * Burlington, Prince Edward Island * Burlington Bay, no ...

's "Zephyr" fleet and

Southern Pacific Railroad The Southern Pacific (or Espee from the railroad initials- SP) was an American Class I railroad network that existed from 1865 to 1996 and operated largely in the Western United States. The system was operated by various companies under the ...

's '' Coast Daylight'' and ''

Sunset Limited The ''Sunset Limited'' is an Amtrak passenger train that for most of its history has operated between New Orleans and Los Angeles, over the nation's second transcontinental route. However, up until Hurricane Katrina in 2005, it operated betwe ...

'' — had E9s pulling them. E9s and their E7 and E8 kin ran throughout the country on lesser-known passenger trains, Chicago's network of commuter trains and many mail and express trains. As America's passenger train network shrank due to unprofitability, Union Pacific, Rock Island and

Illinois Central The Illinois Central Railroad , sometimes called the Main Line of Mid-America, was a railroad in the Central United States, with its primary routes connecting Chicago, Illinois, with New Orleans, Louisiana, and Mobile, Alabama. A line also co ...

began using E9s on freight trains while Burlington Northern and

Chicago and North Western The Chicago and North Western was a Class I railroad in the Midwestern United States. It was also known as the "North Western". The railroad operated more than of track at the turn of the 20th century, and over of track in seven states befor ...

began upgrading their fleets of E9's with Head-end power and EMD 645 power assemblies for commuter operations in the Chicago metropolitan area into the early 1990's. Amtrak, founded in 1971, bought 36 E9As and 23 E9Bs from the Union Pacific, Milwaukee Road, B&O and SCL. Amtrak used the E9s until 1979 and converted some E9B units to steam generator and head end power cars.

Original owners

Surviving examples

42 E9 locomotives survive today, donated to several museums and tourist railroads. A number of railroads keep a small number in service for hauling inspection specials, charter passenger trains, investor tours and other special trains. *Five E9s are owned by the

Illinois Railway Museum The Illinois Railway Museum (IRM, reporting mark IRMX) is the largest railroad museum in the United States. It is located in the Chicago metropolitan area at 7000 Olson Road in Union, Illinois, northwest of downtown Chicago. Overview Histo ...

, in Union, Illinois. The operating units are often used pulling trains within museum grounds. *The Union Pacific Railroad rosters three E9s: two A units, 951 and 949, and a B unit, 963B (built as UP E9B 970B), in their heritage fleet. They were rebuilt in 1993 with a single 2000 hp EMD 16-645E engine and upgraded electrical and control equipment for compatibility with more modern locomotives. *

Southern Pacific 6051 Southern Pacific 6051 is an EMD E9 diesel locomotive. It was one of nine E9s built for SP by EMD in December 1954 for the Southern Pacific (SP). It entered service on January 4, 1955 at Los Angeles. These nine locomotives allowed the dieselizati ...

, the last surviving SP E9, is preserved at the

California State Railroad Museum The California State Railroad Museum is a museum in the state park system of California, United States, interpreting the role of the "iron horse" in connecting California to the rest of the nation. It is located in Old Sacramento State Historic ...

and operates excursions hosted by the museum. * CN owns and operates ex- Chicago, Burlington & Quincy E9A 9986A for its business train, painted in CN's heritage livery and numbered 103. *

Milwaukee Road The Chicago, Milwaukee, St. Paul and Pacific Railroad (CMStP&P), often referred to as the "Milwaukee Road" , was a Class I railroad that operated in the Midwestern United States, Midwest and Pacific Northwest, Northwest of the United States fr ...

32A is owned and operated by the Friends of the 261, who acquired it in 2019. This unit was previously used on the

Wisconsin and Southern Railroad The Wisconsin and Southern Railroad is a Class II regional railroad in Southern Wisconsin and Northeastern Illinois currently operated by Watco. It operates former Chicago, Milwaukee, St. Paul and Pacific Railroad (Milwaukee Road) and Chicago ...

as their 101.

References

Notes

Bibliography

* * * * * Reich, Sy (1973). ''Diesel Locomotive Rosters – The Railroad Magazine Series''. Wayner Publications. No Library of Congress or ISBN. * * * * * * * * *

Extra 2200 South This tabulation is for periodicals which do not have their own articles. Magazines ''Australian Railway'' * * Published Trade News Corporation * Feb-Mar 1988 is Vol. 2 No. 1. * Last issue about #23 in approximately Aug 1992. * Size = ~A4 ''A ...

#43 November December 1973 Amtrak Roster by Dick Will p. 13 * Extra 2200 South #43 November December 1973 E8/E9 Roster and article by Dan Dover and Win Cuisinier (Preston Cook) pp. 14–24

External links

*
Illinois Railway Museum's Equipment roster
(type "E9" and search the collection)

The Union Pacific's trio of re-engined E9s
{{EMD cab and cowl A1A-A1A locomotives E9 Passenger locomotives Diesel locomotives of the United States Railway locomotives introduced in 1954 Locomotives with cabless variants Standard gauge locomotives of the United States Streamlined diesel locomotives