ALCO S-6
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| Power type | Diesel-electric |
|---|---|
| Builder | ALCO |
| Model | S-6 |
| Build date | May 1955 – December 1960 |
| Total production | 126 |
| AAR wheel arr. | B-B |
| UIC classification | Bo'Bo' |
| Gauge | 4 ft 8½ in (1435 mm) |
| Length | 45 ft 5 in (13.84 m)[1] |
| Width | 10 ft (3.05 m) |
| Height | 14 ft 8 in (4.47 m) |
| Total weight | 230,000 lb (104,000 kg) |
| Fuel capacity | 635 US gallons (2410 L) |
| Prime mover | ALCO 251A,B |
| Engine type | 4-stroke diesel |
| Generator | GE GT533 |
| Traction motors | 4 × GE 731 |
| Cylinders | straight 6 |
| Top speed | 60 mph (97 km/h) |
| Power output | 900 hp |
The Alco S-6 (spec. DL 430) was a diesel-electric locomotive of the switcher type constructed by ALCO of Schenectady, New York; a total of 126 locomotives were built between May 1955 and December 1960. The S-6 was a development of the earlier S-5; instead of the 800 hp ALCO 251 engine on the previous locomotive, the S-6 used a 251A or 251B engine rated at 900 horsepower. The locomotive rode on two-axle AAR trucks, giving a B-B wheel arrangement. A cow-calf version was produced exclusively for Oliver Iron Mining, who bought two: this was the SSB-9 (DL-441).
Original owners
| Railroad | Quantity | Road Number | Notes |
|---|---|---|---|
| ARMCO Steel | 1 | 1202 | |
| Allied Chemical | 1 | 110 | |
| Belt Railway of Chicago | 1 | 420 | |
| B. Perini & Sons | 1 | 101 | |
| Chihuahua Pacific | 1 | 60 | Renumbered 106 |
| Cia Fundidora de Hierro y Acero | 3 | 1–3 | |
| Ferrocarril del Pacifico | 24 | 701–723 | |
| Nacionales de Mexico | 1 | 5300 | |
| Northern Pacific Railroad | 1 | 750 | |
| Ohio River Company (ORCo) | 1 | 56 | |
| Republic Steel | 3 | 153,317,318 | |
| Secretaria de Comunicaciones de Obras Publicas (SCOP) | 3 | 7133-1,2,3 | |
| Sheffield Steel | 2 | 15,16 | |
| Southern Pacific Railroad | 70 | 1033–1082,4634–4645 | |
| South Buffalo Railroad | 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 Railroad | 2 | 151,152 | |
| Ferrocarriles Unidos de Yucatan | 1 | 301 |
References
- Sarberenyi, Robert. Alco S5, S6, and SSB9 Original Owners.
- ↑ ALCO S-6 Data Sheet. The Diesel Shop. Retrieved on 2006-11-29.
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| Diesel-electric locomotives built by ALCO | |
|---|---|
| Switchers: | HH series, S-1, S-2, S-3, S-4, S-5, S-6, T-6, SSB-9 |
| RS series: | RS-1, RS-2, RS-3, RS-11, RS-27, RS-32, RS-36 |
| RSC series: | RSC-2, RSC-3 |
| RSD series: | RSD-1, RSD-4, RSD-5, RSD-7, RSD-12, RSD-15 |
| Cab units: | DL-103b, DL-105, DL-107, DL-109, DL-110, DL-203, FA, FB, PA, PB |
| Century series: | C415, C420, C424, C425, C430, C628, C630, C636, C855 |
| Diesel-hydraulics: | DH643 |
