These 4-8-4s, built with 75" drivers, were designed as dual-purpose locomotives. However, they were used continuously for 25 years on night passenger trains between Toronto and Montreal. In keeping with CPR practice they were later converted to burn oil.
CPR favored its fleet of Hudsons for passenger service and rejected the Northerns because it concluded that they were too heavy and too slow for main line passenger trains.
Both of these step-children from CPR's steam era survive today and are on display, one at IPSCO Inc. in Regina, SK and the other at the National Museum of Science and Technology in Ottawa, ON.
|Specifications for Class K-1a|
|Length:||97' - 4"|
|Weight on Drivers:||250,000 lbs|
|Total Locomotive Weight:||423,000 lbs|
|Locomotive & Tender Weight:||709,000 lbs|
|Grate Area:||93.5 sq ft|
|Cylinders (dia. x stroke):||(2) 25.5" x 30"|
|Boiler Pressure:||275 psi|
|Tractive Effort:||60,800 lbs|