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EspañolALCO S-1 AND S-3
(Redirected from ALCO S1)
The 'ALCO S1' and 'S3' were 660 hp (490 kW) switcher diesel-electric locomotives produced by ALCO and Canadian licensee 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 540 completed, while the S-3 was constructed between March 1950 and November 1953 (MLW until 1957) with total sales of 292. A modified version, the 'S-10', was built by MLW only; 13 were built between January and June 1958.
The S-1 and S-3 are distinguishable externally from the very similar S-2 and S-4 1,000 hp (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.
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.
★ The Second Diesel Spotter's Guide, Pinkepank, Jerry A., , , Kalmbach Publishing Co., Milwaukee, WI, 1973, ISBN 0-89024-026-4
★ Toppan, Andrew et al. ''Alco/MLW S-1 Roster''. Retrieved on January 12, 2004.
★ Toppan, Andrew et al. ''Alco/MLW S-3 Roster''. Retrieved on January 13, 2004.
The 'ALCO S1' and 'S3' were 660 hp (490 kW) switcher diesel-electric locomotives produced by ALCO and Canadian licensee 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 540 completed, while the S-3 was constructed between March 1950 and November 1953 (MLW until 1957) with total sales of 292. A modified version, the 'S-10', was built by MLW only; 13 were built between January and June 1958.
| Contents |
| Identification |
| Original owners |
| S-1 |
| S-3 |
| S-10 |
| References |
Identification
The S-1 and S-3 are distinguishable externally from the very similar S-2 and S-4 1,000 hp (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
S-3
S-10
| Railroad | Quantity | Road numbers |
|---|---|---|
| Canadian Pacific Railway | 13 | 6601-6613 |
References
★ The Second Diesel Spotter's Guide, Pinkepank, Jerry A., , , Kalmbach Publishing Co., Milwaukee, WI, 1973, ISBN 0-89024-026-4
★ Toppan, Andrew et al. ''Alco/MLW S-1 Roster''. Retrieved on January 12, 2004.
★ Toppan, Andrew et al. ''Alco/MLW S-3 Roster''. Retrieved on January 13, 2004.
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