ALCO S-1 and S-3: Difference between revisions
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Numerous S-1 and S-3 locomotives remain in use, and several are preserved: |
Numerous S-1 and S-3 locomotives remain in use, and several are preserved: |
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* Ex-U.S. Army S-1 {{Abbr|No.|Number}} 7372 is at the [[Western Pacific Railroad Museum]] and painted in Western Pacific colors.<ref>{{cite web | url=http://www.wplives.org/locomotivepages/wp512.html | title=Western Pacific 512 | work=Western Pacific Railroad Museum | accessdate=28 November 2015}}</ref> |
* Ex-U.S. Army S-1 {{Abbr|No.|Number}} 7372 is at the [[Western Pacific Railroad Museum]] and painted in Western Pacific colors.<ref>{{cite web | url=http://www.wplives.org/locomotivepages/wp512.html | title=Western Pacific 512 | work=Western Pacific Railroad Museum | accessdate=28 November 2015}}</ref> |
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* Ex-Canadian Pacific MLW S-3 {{Abbr|No.|Number}} 6568 is at the [[Saskatchewan Railway Museum]].<ref>{{cite web |
* Ex-Canadian Pacific MLW S-3 {{Abbr|No.|Number}} 6568 is at the [[Saskatchewan Railway Museum]].<ref>{{cite web|url=http://saskrailmuseum.org/index.php/our-collection/rolling-stock/locomotives/ |title=Locomotives |work=Saskatchewan Railway Museum |accessdate=28 November 2015 |deadurl=yes |archiveurl=https://web.archive.org/web/20151208123501/http://saskrailmuseum.org/index.php/our-collection/rolling-stock/locomotives/ |archivedate=8 December 2015 }}</ref> |
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Revision as of 01:15, 24 June 2017
 | This article needs additional citations for verification. (November 2015) |
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 Mid-Continent Railway No. 7, an S-1, rests between trains on October 10, 2004 | |||||||||||||||||||||||||||||||||||||||||||
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The ALCO S-1 and S-3 were 660 horsepower (490 kW) switcher diesel-electric locomotives produced by ALCO and their Canadian subsidiary Montreal Locomotive Works (MLW). Basically, the two locomotives differed only in trucks, with the S-1 using ALCO's own Blunt trucks, and the S-3 riding on standard AAR type A switcher trucks. The S-1 was built between April 1940 and June 1950, with a total of 543 completed, while the S-3 was constructed between February 1950 and November 1953 (MLW until 1957) with total sales of 300. A modified version, the S-10, was built by MLW only; 13 were built between January and June 1958.
Identification
The S-1 and S-3 are distinguishable externally from the very similar S-2 and S-4 1,000 horsepower (750 kW) switchers in that they have a smaller exhaust stack with a round base and a smaller radiator shutter area on the nose sides. The S-1/S-3 radiator shutter area is taller than it is wide, while the S-2/S-4 radiator area is wider. The smaller stack is due to the lack of turbocharging.
The S-10 is not externally distinguishable from later Canadian-built S-3 locomotives; it differed mostly in electrical equipment.
Original owners
The S-1 and S-3 models were sold to an extensive list of railroads and industrial operators, as detailed below. Major owners of the S-1 included the New York Central Railroad (NYC), with 71 locomotives; the New Haven with 65 locomotives; the L&N with 45 locomotives; the C&NW, with 29 locomotives; and the Pennsylvania Railroad (PRR) with 27 locomotives. Major customers for the S-3 included the CP, with 101; the CN, with 49; the NYC, with 43 locomotives; the B&M, with 16; and the PRR, with 13. The MLW S-10 was sold only to the CP.
The totals below include export orders and MLW-built locomotives.
S-1
ALCO constructed approximately 535 S-1s for the US market between 1940–1950.[1][3] In addition, it produced a single S-1 for Canadian Car and Munitions (of Canada), five for Estrada de Ferro Central do Brasil in Brazil, five for Ferrocarriles Nacionales de México in Mexico, and five for the Steel Company of Wales in the United Kingdom.[4]
S-3
ALCO and the Montreal Locomotive Works constructed approximately 300 S-3s for the North American market between 1950–1957.[1][3] ALCO built 137; MLW built 163:[5]
S-10
MLW constructed 13 S-10s, all for the Canadian Pacific Railway:[3]
| Railroad | Quantity | Road numbers |
|---|---|---|
| Canadian Pacific Railway | 13 | 6601–6613 |
Preservation
Numerous S-1 and S-3 locomotives remain in use, and several are preserved:
- Ex-U.S. Army S-1 No. 7372 is at the Western Pacific Railroad Museum and painted in Western Pacific colors.[7]
- Ex-Canadian Pacific MLW S-3 No. 6568 is at the Saskatchewan Railway Museum.[8]
See also
References
- ^ a b c Foster, Gerald L. (1996). A Field Guide to Trains of North America. Boston: Houghton Mifflin. p. 6. ISBN 0-3957-0112-0.
- ^ Dorin, Patrick C. (1972). Chicago and North Western Power. Burbank, California: Superior Publishing. pp. 134–135. ISBN 0-87564-715-4.
- ^ a b c Pinkepank, Jerry A. (1973). The Second Diesel Spotter's Guide. Milwaukee, Wisconsin: Kalmbach Publishing. pp. 221–222. ISBN 978-0-89024-026-7.
- ^ "Alco/MLW S-1 Roster". The Diesel Shop. 18 December 2010. Retrieved 21 November 2015.
- ^ "Alco/MLW S-3 Roster". The Diesel Shop. 18 December 2010. Retrieved 28 November 2015.
- ^ "The Alco S-3". American-Rails.com. Retrieved 28 November 2015.
- ^ "Western Pacific 512". Western Pacific Railroad Museum. Retrieved 28 November 2015.
- ^ "Locomotives". Saskatchewan Railway Museum. Archived from the original on 8 December 2015. Retrieved 28 November 2015.
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External links
- B-B locomotives
- ALCO locomotives
- MLW locomotives
- Railway locomotives introduced in 1950
- Railway locomotives introduced in 1940
- Diesel locomotives of the United States
- Standard gauge locomotives of the United States
- Standard gauge locomotives of Canada
- Standard gauge locomotives of Great Britain
- Standard gauge locomotives of Mexico