| Expressions |
Definition |
| ALCO Century 415 |
The ALCO Century 415 was a diesel locomotive of B-B wheel arrangement produced by the American Locomotive Company (ALCO) as part of their Century Series of locomotives. (references) |
| ALCO Century 628 |
The ALCo Century 628 was a six-axle, 2800 horsepower (2.1 MW) diesel locomotive. 186 were built between 1963 and 1967. Cataloged as a part of ALCo's 'Century' line of locomotives, the C628 was intended to replace the earlier RSD-15 model. (references) |
| ALCO Century 630 |
The ALCO Century 630 was a six-axle, 3000 horsepower (2.2 MW) diesel locomotive built between 1965 and 1967. 77 were built: 3 for Atlantic Coast Line Railroad, 4 for Chesapeake and Ohio Railway, 8 for Louisville and Nashville Railroad, 10 (with high noses) for Norfolk and Western Railway, 15 for Pennsylvania Railroad, 12 for the Reading Railroad, 15 for Southern Pacific Railroad and 10 for Union Pacific Railroad. (references) |
| ALCO Century 636 |
The ALCO Century 636 was the most powerful single-engine diesel locomotive constructed by ALCO. The locomotive had a C-C wheel arrangement and 3600 horsepower (2.7 MW). Visually, it is almost identical to the Century 630. (references) |
| ALCO Century 855 |
The ALCo Century 855 was ALCo's most powerful diesel-electric locomotive ever built. Powered by a pair of ALCo's 251C diesel engines, and rated at 5500 horsepower (4.1 MW), it was ALCo's answer to the EMD DD35/DD35A and the GE U50. Only two cab units and one booster were built, all for Union Pacific Railroad, which had requested double-engine locomotives from EMD and GE in order to replace their aging fleet of gas turbine locomotives. Poor performance led to their early retirement, eventually being scrapped by February of 1972. (references) |
| ALCO Century Series locomotives |
In 1963, the American Locomotive Company (ALCO) announced its new Century Series of diesel locomotives. By the end of the 1950s the dieselization of American railroads was essentially complete. For the first time, the locomotive builders had to persuade railroads to replace diesel locomotives, instead of steam locomotives — and because of the rapid pace of American dieselization, few of these locomotives were life-expired. The case for dieselization had been compellingly made — almost too compellingly for the health of the locomotive builders. (references) |
| ALCO DH643 |
The ALCO DH643, also known as the Century 643DH, was a double-engine diesel-hydraulic locomotive. It had a C-C wheel arrangement and generated 4300 hp (3.2 MW). Only three were built, all for Southern Pacific in 1964. (references) |
| ALCO HH series |
The ALCO HH series were an early series of switcher diesel locomotives built by the American Locomotive Company (ALCO) of Schenectady, New York between 1931 and 1940, when they were replaced by the S series; the 600 hp S-1 and 1,000 hp S-2. They were ALCO's first diesel switchers to enter true series production. (references) |
| ALCO PA |
The ALCO PA was a family of A1A-A1A diesel locomotives built to haul passenger trains built in Schenectady, New York in the United States by the American Locomotive Company (ALCO) between September 1946 and December 1953. They were of a cab unit design, and both cab-equipped lead A unit PA and cabless booster B unit PB models were built. (references) |
| ALCO RS-1 |
The ALCo RS-1 was a 4-axle diesel-electric locomotive built by the American Locomotive Company between 1941 and 1960. It was powered by a 6-cylinder 539T diesel engine, generating 1,000 horsepower. 417 examples of this locomotive were built, the RS-1 having the longest production run of any diesel for the North American market. (references) |
| ALCO RS-11 |
An ALCO RS-11 is a four-axle B-B diesel locomotive built by American Locomotive Company. (references) |
| ALCo RS-2 |
The ALCO RS-2 was a diesel-electric locomotive of the road switcher type rated at 1500 horsepower, that rode on two-axle trucks, having a B-B wheel arrangement. (references) |
| ALCO RS-3 |
The ALCo RS-3 is a 1,600 hp (1.2 MW), B-B road switcher railroad locomotive. It was manufactured from May 1950 to August 1956, and 1370 were produced — 1265 for the U.S., 98 for Canada, and 7 for Mexico. It has a single, 12 cylinder, model 244 engine. (references) |
| ALCO RSC-2 |
The ALCo RSC-2 was a diesel-electric locomotive of the road switcher type initially rated at 1500 horsepower, that rode on three-axle trucks, having an A1A-A1A wheel arrangement. (references) |
| ALCO RSD-4 |
ALCo's RSD-4 was a diesel-electric locomotive of the road switcher type rated at 1600 horsepower, that rode on three-axle trucks, having an C-C wheel arrangement. (references) |
| ALCO S-1 and S-3 |
The ALCO S1 and S3 were 660 hp (490 kW) switcher diesel locomotives produced by ALCO and Canadian licensee Montreal Locomotive Works. 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. (references) |
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Source: compiled by the editor from various references; see credits.
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