Martha L. Black-class icebreaker
The Martha L. Black-class icebreakers are a class of six light icebreaker and buoy tenders constructed for and operated by the Canadian Coast Guard. Built in the 1980s, the class operates on both coasts of Canada and have been used for operations in the Arctic region, including the search for the ships of Franklin's lost expedition. They are rated as "high endurance multi-tasked vessels" under Canadian Coast Guard naming rules.
Name ship of the class Martha L. Black entering the port of Rimouski
Sir Wilfrid Laurier in Cambridge Bay prior to departing to search for Franklin's lost expedition
The ALCO 251 is a 4-stroke diesel engine that was developed by the American Locomotive Company to replace its 244 and 539 engines. The 251 was developed to be used in diesel locomotives, as a marine power plant in ships, and as a stationary power generator.
ALCO 18-251 V18 engine used as a backup generator at a wastewater plant in Montreal.