The Rapido Trains HO Scale MLW RS23 is based on units introduced by Montreal Locomotive Works in 1959. Canadian Pacific was the largest owner of the RS-23 locomotives with a total of 34 built between August and September of 1959. These were classified in CP nomenclature as "Diesel Road Switcher, 1,000hp" (DRS-10c). Initially assigned to Ontario, the RS-23s were reassigned to the Atlantic Region and Saskatchewan. It was not uncommon to see them working in sets of four or five units in northern Saskatchewan on branchline freights. Out in the Maritimes, the RS-23s could be seen in the same capacity, albeit in smaller sets of two to three units. As road switchers, CP's RS-23s often ran in multiple with larger 4-axle and 6-axle freight locomotives. During CP's motive power shortage in the late 1980s and early 1990s, the RS-23s worked hard in mainline freight duty. By the late-1990s, CP retired its fleet but many continue to survive on short lines throughout North America. This Rapido model features railroad-specific details, appropriate lighting packages and Rapido semi-scale knuckle couplers on both ends. The smooth-running drive features a five-pole motor with dual flywheels, backed up with the MoPower capacitor system for uninterrupted operation. This locomotive-slug set is equipped with a full-featured ESU LokSound and DCC decoder for realistic sound and control. The MLW RS23 is part of the line of Rapido Trains HO Scale locomotives.