The GP40 is a 4-axle
diesel-electric locomotive
A locomotive or engine is a rail transport vehicle that provides the Power (physics), motive power for a train. If a locomotive is capable of carrying a payload, it is usually rather referred to as a multiple unit, Motor coach (rail), motor ...
built by
General Motors' Electro-Motive Division between November 1965 and December 1971. It has an
EMD 645E3
The EMD 645 is a family of diesel engines that was designed and manufactured by the Electro-Motive Division of General Motors. While the 645 series was intended primarily for locomotive, marine and stationary engine use, one 16-cylinder versi ...
16-
cylinder
A cylinder (from ) has traditionally been a three-dimensional solid, one of the most basic of curvilinear geometric shapes. In elementary geometry, it is considered a prism with a circle as its base.
A cylinder may also be defined as an infin ...
engine generating .
The GP40 is longer than its
EMD 567D3A
The EMD 567 is a line of large medium-speed diesel engines built by General Motors' Electro-Motive Division. This engine, which succeeded Winton's 201A, was used in EMD's locomotives from 1938 until its replacement in 1966 by the EMD 645. It h ...
-engined predecessor, the
GP35, and distinguished visually by its three 48-inch radiator fans at the rear of the long hood, while the GP35 has two large fans and a smaller one in between. It was built on a frame; the GP35 was built on a frame - as was the GP7, 9, 18, and 30. The difference in length can be seen in the GP40's ten handrail stanchions compared to the GP35's nine.
1,187 GP40s were built for 28
U.S. railroads; 16 were built for one
Canadian carrier,
Canadian National
The Canadian National Railway Company (french: Compagnie des chemins de fer nationaux du Canada) is a Canadian Class I railroad, Class I freight railway headquartered in Montreal, Quebec, which serves Canada and the Midwestern United States, M ...
; and 18 were built for two
Mexican carriers,
Ferrocarril Chihuahua al Pacífico
The Ferrocarril Chihuahua al Pacífico (Chihuahua-Pacific Railway), also known as El Chepe from its reporting mark CHP, is a major rail line in northwest Mexico, linking Chihuahua City, to Los Mochis and its port, Topolobampo, Sinaloa, Topoloba ...
and
Ferrocarriles Nacionales de México
Ferrocarriles Nacionales de México (better known as N de M and especially in its final years as FNM) was Mexico's state owned railroad company from 1938 to 1998, and prior to 1938 (dating from the regime of Porfirio Díaz), a major railroad con ...
. 60 units were built with high-short-hoods and dual control stands for
Norfolk & Western Railway
The Norfolk and Western Railway , commonly called the N&W, was a US class I railroad, formed by more than 200 railroad mergers between 1838 and 1982. It was headquartered in Roanoke, Virginia, for most of its existence. Its motto was "Precisio ...
. Two
passenger versions, the
GP40P
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 compone ...
and
GP40TC
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 componen ...
, were also built, but on longer frames to accommodate
steam generators
A steam generator is a form of low water-content boiler, similar to a flash steam boiler. The usual construction is as a spiral coil of water-tube, arranged as a single, or monotube, coil. Circulation is once-through and pumped under pressure, ...
and
HEP equipment.
On January 1, 1972, the GP40 was discontinued and replaced by the
GP40-2
The EMD GP40-2 is a 4-axle diesel locomotive built by General Motors Electro-Motive Division as part of its Dash 2 line between April 1972 and December 1986. The locomotive's power is provided by an EMD 645E3 16-cylinder engine which generates ...
, which has a modular electrical system and a few minor exterior changes.
GP22ECO
The
GP22ECO is a locomotive built from recycled GP40/GP40-2 parts. The frame, trucks, and carbody are refurbished, while the 16-645 engine is replaced with a new 8-710-ECO engine. The electrical system is replaced with a modern microprocessor-based system. Horsepower is reduced to 2,150 due to the smaller engine.
Images
File:DME loco.jpg, A Dakota, Minnesota and Eastern Railroad
The Dakota, Minnesota and Eastern Railroad is a wholly owned U.S. subsidiary of the Canadian Pacific Railway. Before its purchase, it was the largest Class II railroad in the United States, operating across South Dakota and southern Minnesota in ...
GP40 running long hood forward
The long hood of a hood unit-style diesel locomotive is, as the name implies, the longer of the two hoods (narrower sections of the locomotive body in front and behind of the cab) on a locomotive, particularly American-type freight locomotives ...
File:WAMX_4037.jpg, A GP40 of Union Pacific Railroad
The Union Pacific Railroad , legally Union Pacific Railroad Company and often called simply Union Pacific, is a freight-hauling railroad that operates 8,300 locomotives over routes in 23 U.S. states west of Chicago and New Orleans. Union Paci ...
heritage, now owned by Webb Asset Management
File:HATX 519 EMD GP40.jpg, A GP40 owned by Helm Locomotive Leasing
File:Sulphur Springs January 2016 5 (LTEX GP40 No. 3000).jpg, A GP40 owned by Larry's Truck & Electric (LTEX)
File:BNSF 3004 Lincoln, NE 3-21-11.JPG, Ex-Burlington Northern GP40M no. 3004 at Lincoln, Nebraska in 2011
Original Owners
See also
*
EMD GP40-based passenger locomotives
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 componen ...
*
List of GM-EMD locomotives
The following is a list of locomotives produced by the Electro-Motive Corporation (EMC), and its successors General Motors Electro-Motive Division (GM-EMD) and Electro-Motive Diesel (EMD).
Streamlined power cars and early experimental locomotive ...
*
List of GMD Locomotives
The following is a list of locomotives produced by General Motors Diesel (GMD), and its corporate successor Electro-Motive Diesel, Electro-Motive Canada (EMC).
The NF-110 and NF-210 locomotive models were narrow gauge railway, narrow gauge locomot ...
References
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GP40
The GP40 is a 4-axle Diesel-electric locomotive, diesel-electric locomotive built by Electro-Motive Diesel, General Motors' Electro-Motive Division between November 1965 and December 1971. It has an EMD 645E3 16-cylinder (engine), cylinder engin ...
GP40
The GP40 is a 4-axle Diesel-electric locomotive, diesel-electric locomotive built by Electro-Motive Diesel, General Motors' Electro-Motive Division between November 1965 and December 1971. It has an EMD 645E3 16-cylinder (engine), cylinder engin ...
B-B locomotives
Diesel-electric locomotives of the United States
Railway locomotives introduced in 1965
Standard gauge locomotives of the United States
Standard gauge locomotives of Canada
Standard gauge locomotives of Mexico
Diesel-electric locomotives of Canada
Diesel-electric locomotives of Mexico
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