Канадский корвет типа «Флавер» HMCS Asbestos во Второй мировой войне

Modified Flower class corvette

HMCS Asbestos was a that served in the Royal Canadian Navy during the Second World War. She fought primarily in the Battle of the Atlantic as a convoy escort. She was named for Asbestos, Quebec.

Flower class corvettes like Asbestos serving with the Royal Canadian Navy during the Second World War were different from earlier and more traditional sail driven corvettes. The "corvette" designation was created by the French as a class of small warships; the Royal Navy borrowed the term for a period but discontinued its use in 1877. During the hurried preparations for war in the late 1930s, Winston Churchill reactivated the corvette class, needing a name for smaller ships used in an escort capacity, in this case based on a whaling ship design. The generic name "flower" was used to designate the class of these ships, which – in the Royal Navy – were named after flowering plants. Corvettes commissioned by the Royal Canadian Navy during the Second World War were named after communities for the most part, to better represent the people who took part in building them. This idea was put forth by Admiral Percy W. Nelles. Sponsors were commonly associated with the community for which the ship was named. Royal Navy corvettes were designed as open sea escorts, while Canadian corvettes were developed for coastal auxiliary roles which was exemplified by their minesweeping gear. Eventually the Canadian corvettes would be modified to allow them to perform better on the open seas.

Asbestos followed the design of the modified Flower class corvettes and was ordered June 1942 as part of the 1943 44 Flower class building program. The only significant difference is that the majority of the 43 44 program replaced the 2 pounder Mk. VIII single "pom pom" anti aircraft gun with 2 twin 20 mm and 2 single 20 mm anti aircraft guns.

Asbestos arrived at Halifax on 9 July before moving on to Bermuda for working up. Following working up she headed for St John's after being assigned to the Mid Ocean Escort Force on 21 August. She joined convoy HXF.307 on 10 September as a member of Escort Group C 2. She continued on as a member of this group on convoy duties until the end of the war in Europe.

She was paid off from the RCN on 8 July 1945 and laid up on Sorel, Quebec. She was transferred to the War Assets Corporation and sold to the Dominican Navy in 1947. She was wrecked off Cuba whilst en route on 13 February 1949. The wreck was salvaged and taken to New Orleans, Louisiana for scrapping in March 1949.