RSC-2 Diesel Locomotive

Prototype Information

Alco produced the RSC-2 diesel-electric locomotive between 1946 and 1950. This model adapted the popular RS-2 road switcher for specific track needs. It featured a unique A1A-A1A wheel arrangement with three-axle trucks. Only the outer two axles on each truck provided power. This design spread the locomotive’s weight across six axles. This lower axle load allowed the engine to travel on light rail and over fragile bridges.

The 12-cylinder Model 244 engine gave the RSC-2 its 1,500 horsepower. Alco built only 91 units, making it a relatively rare machine. The Milwaukee Road and the Seaboard Air Line became its primary operators in North America. Some units also went to railroads in Portugal and Algeria. However, the Model 244 engine often required more maintenance than competing EMD models. Most railroads retired their units by the 1960s, and only a few remain in museums today.