The EMD SW7 was a
diesel switcher
A switcher, shunter, yard pilot, switch engine, yard goat, or shifter is a small railroad locomotive used for manoeuvring railroad cars inside a rail yard in a process known as ''switching'' (US) or ''shunting'' (UK). Switchers are not inte ...
locomotive built by
General Motors Electro-Motive Division between October 1949 and January 1951.
It was powered by a
12-567A engine.
The SW7 replaced the earlier 1,000 horsepower NW2 switcher in EMD's catalog.
A total of 489 SW7 locomotives were produced. The majority of the SW7s were built by EMD Plant #3 in Cleveland, Ohio. In addition, 15 TR4
cow-calf
In rail transport, a cow-calf (also cow and calf) locomotive is a set of switcher-type diesel locomotives. The set usually is a pair; some 3-unit sets (with two calves, also known as herds) were built, but this was rare. A cow is equipped with a ...
paired sets were produced.
SW7 production was discontinued in 1951 in favor of the new
SW9.
Original buyers
External links
*
See also
*
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 locomotives ...
References
* * Kristopans, Andre J. http://utahrails.net/ajkristopans/SWITCHERS201Aand567.php Retrieved October 7, 2014.This is a compilation of EMD Product Reference Data
* General Motors Electro-Motive Division Service Department "Locomotive Reference Data" published January 1, 1959, 286 pages.
B-B locomotives
SW0007
Diesel-electric locomotives of the United States
Railway locomotives introduced in 1949
Locomotives with cabless variants
Standard gauge locomotives of the United States
{{diesel-loco-stub
Shunting locomotives