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The Alco S-6 (specification DL 430) was a diesel-electric switcher locomotive constructed by ALCO of Schenectady, New York; a total of 126 locomotives were built between May 1955 and December 1960. The S-6 was an improved version of the earlier S-5.
Design
Visually indistinguishable from the S-5, the S-6 used an ALCO 251A or 251B prime mover rated at 900 horsepower (670 kW). The locomotive rode on two-axle AAR trucks, giving a B-B wheel arrangement. ALCO produced a cow-calf variant for the Oliver Iron Mining Company designated SB-8/SSB-9, two sets were produced of this version.[3]
Original owners
| Railroad | Quantity | Road Number | Notes |
|---|---|---|---|
| Allied Chemical Company | 1 | 110 | |
| ARMCO Steel | 1 | 1202 | |
| B. Perini & Sons Construction Company | 1 | 101 | to Upper Merion and Plymouth Railroad 101 |
| Belt Railway of Chicago | 1 | 420 | |
| Ferrocarril Chihuahua al Pacífico | 1 | 60 | Renumbered 106 |
| Cia Fundidora de Hierro y Acero | 3 | 1–3 | |
| Ferrocarril del Pacífico | 24 | 701–723 | |
| Ferrocarriles Nacionales de México | 1 | 5300 | |
| Northern Pacific Railway | 1 | 750 | to Burlington Northern Railroad 950 |
| Ohio River Company (ORCo) | 1 | 56 | |
| Republic Steel | 3 | 153, 317, 318 | |
| Secretaria de Comunicaciones de Obras Publicas (SCOP) | 3 | 7133-1, 2, 3 | to Ferrocarril del Sureste (same numbers) |
| Sheffield Steel | 2 | 15, 16 | |
| Southern Pacific Railroad | 70 | 1033–1082, 4634–4645 | renumbered 1200–1257, 1270–1281 |
| South Buffalo Railway | 6 | 40–45 | |
| Tennessee Copper | 1 | 107 | |
| Upper Merion and Plymouth Railroad | 1 | 61 | |
| U.S. Pipe and Foundry | 1 | 38 | |
| Columbia Geneva Steel | 1 | 1 | |
| Western Maryland Railway | 2 | 151, 152 | |
| Ferrocarriles Unidos de Yucatán | 1 | 301 |
In popular culture
- In Back to the Future Part III, two double headed S-6 locomotives destroyed the DeLorean time machine, when it returned to 1985.
See also
References
- ↑ Strapac, Joseph A. (March 2013). Southern Pacific Historic Diesels Volume 18: Alco and GE Diesel Switchers. Bellflower, CA: Shade Tree Books. p. 73. ISBN 978-0-930742-44-7.
- ↑ "ALCO S-6 Data Sheet". The Diesel Shop. Retrieved 2006-11-29.
- ↑ Pinkepank, Jerry A. (1973). The Second Diesel Spotter's Guide. Milwaukee, Wisconsin: Kalmbach Publishing. p. 230. ISBN 978-0-89024-026-7.
External links
Wikimedia Commons has media related to ALCO S-6 locomotives.
- Sarberenyi, Robert. Alco S5, S6, and SSB9 Original Owners.
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