High Quality Content by WIKIPEDIA articles! HMCS Chambly was a Flower-class corvette serving in the Royal Canadian Navy. She was ordered from Canadian Vickers Ltd. in Montreal, laid down on 20 February 1940, launched on 29 July, and commissioned on 18 December 1940, named after the city of Chambly, Quebec. Chambly escorted trade convoys between Halifax Harbour and the Western Approaches through the battle of the Atlantic and, together with HMCS Moosejaw, achieved the RCN`s first U-boat kill of the war.