Commissioned at Quebec City on May 18, 1941, Baddeck arrived at Halifax on May 29. She again left Quebec City late in June for Halifax, escorting SS Lady Rodney, but had to return to her builder's at Lauzon owing to an engine breakdown. In September the two set out from Halifax for Jamaica, but again Baddeck's engine failed, and she reached her destination only with difficulty. When further repairs had been completed, she was assigned to Newfoundland Command, leaving Sydney on October 5 for Iceland as ocean escort to convoy SC.48, which lost nine ships to U-boats. Engine repairs kept her at Hvalfjord, Iceland, until mid-December but failed to cure the problem and she was in dock at Halifax for the first sic months of 1942. She worked up at Pictou in July, 1942, then joined WLEF until allocated to duties in connection with the invasion of North Africa, arriving at Londonderry on November 1. For the next four months she escorted U.K.-Mediterranean convoys, returning to Halifax on April 4, 1943. Later that month Baddeck was assigned to ERG C-4 for two round trips to Londonderry, then in mid-July went to EG W-2, WLEF. In August she underwent a major refit at Liverpool, N.S., including fo'c's'le extension and, after working up in St. Margaret's Bay in January, 1944, sailed in March to join EG 9, Londonderry. In April she transferred to Western Approaches Command for invasion escort duties, based at Portsmouth, and on June 13 beat off an attack by motor torpedo boats while so employed. In September she was transferred to Nore Command, based at Sheerness, escorting local convoys until her departure for home on May 24, 1945. She was paid off at Sorel on July 4 and sold for mercantile purposes in 1946, and renamed Efthalia. After a number of name-changes, she was lost ashore near Jeddah as the Greek-flag Evi on March 11, 1966.
Focsle Extended, Liverpool, NS, 15 Nov 43