MLW RS-23

4 ft 8+1⁄2 in (1,435 mm)Prime moverAlco 251DRPM range1025 / 325Engine typeFour-stroke dieselGeneratorDC generatorTraction motors4 x GE 752 DC traction motorsTransmissionElectricLoco brakeAir, optional dynamicTrain brakesAir

Performance figures
Power output	1,000 hp (750 kW)

Career
Locale	Canada and United States

The MLW RS-23 was a 1,000 hp (746 kW) diesel-electric locomotive built by Montreal Locomotive Works between August 1959 and September 1960. Production totaled 40 locomotives.

The largest fleet of these locomotives was operated by Canadian Pacific Railway, which classed them DRS-10c in that company's locomotive classification system.

Original owners

Railway	Quantity	Road number	Notes
Canadian Pacific Railway	34	8013–8046
Sydney and Louisburg Railway	3	200–202	200 & 202 to GWWD, same #'s.
Texas Gulf Sulphur Company	3	3457-01 - 3457-03
Totals	40