The ALCO S-2 and S-4 are 1,000-horsepower (746 kW) diesel electric switcher locomotives produced by ALCO and Canadian licensee Montreal Locomotive Works (MLW). [1] Powered by turbocharged, 6-cylinder ALCO 539 diesel engines, the two locomotives differed mainly in their trucks: the S-2 had ALCO "Blunt" trucks; the S-4, AAR type A switcher trucks ...

2024年12月23日 · The American Locomotive Company (Alco) began production on the S4 directly after the S2 in June, 1950. It was quite apparent that railroads preferred Alco's more powerful small switchers as both the S2 and S4 far outsold …

Sources of information: Extra 2200 South, Diesel Era, The Short Line and The Canadian Trackside Guide. Additional info provided by R. Craig. Model: ?

The ALCO S-2 and S-4 are 1,000-horsepower (746 kW) diesel electric switcher locomotives produced by ALCO and Canadian licensee Montreal Locomotive Works (MLW). Powered by turbocharged, 6-cylinder ALCO 539 diesel engines, the two locomotives differed mainly in their trucks: the S-2 had ALCO "Blunt" trucks; the S-4, AAR type A switcher trucks.

The ALCo S-4 was the post-war version of the ALCo S-2, outwardly very similar to the S-2, it rode on standard AAR 'B' type trucks. Deliveries started in 1951 and went through to 1955.

Alco S-2 (E1540) and S-4 (ME1000) Data Sheet Information Compiled by: JEAN-DENIS BACHAND: New: 3 May 2005: Drawing by: Jean-Denis Bachand-Engine Builder: Dominion Engineering Works

USA Trains R22565 New Haven ALCO S4, Black. Item: R22565. $529.95 $319.99. Inventory: Avaliable ships within 48 hrs. USA Trains R22566 Christmas S4 Diesel Locomotive #1. Item: R22566. $529.95 $319.99. Inventory: In-Stock. USA Trains R72400 Union Pacific S4 Diesel Freight Set w/Lights and Smoke.

Alco introduced the S-4 in 1950. The S-4 like the earlier S-2 was a 1000 horsepower switcher. Some 636 S-4’s were built for North American railroads. The primary quick spotting difference between the S-1/S-2 and the S-3/S-4 can be seen in the trucks. The S-1/S-2 has Blunt trucks, while the S-3/S-4 has AAR-style trucks.

Northern Pacific Alco S4 #918, blt 1953 cn80463, nee NP 718 Charles H. Biel: Western Pacific Alco S4 #563, blt 1951 cn 78777, to TS 746 Frank Behm: Davenport, Rock Island & Northwestern ALCO S-4 #2 R. Hovey: Minnesota Transfer ALCO S-4 #104, blt 1951 cn 78800 KC Henkles c/o JL Hunt: PC S4 #9733

The USA TrainsAlco S4 in distinguishing Pennsylvania line green is the g scale version of a 1,000horsepower switcher diesel locomotive of the golden age of railroading. New Haven Alco S4 Black Train Price: $314.89