HMCS Nipigon (DDH 266)
[5][note 3] The ships were powered by two Babcock & Wilcox boilers connected to the two-shaft English-Electric geared steam turbines providing 30,000 shaft horsepower (22,000 kW).The two Annapolis-class destroyers were built late enough to incorporate the helicopter hangar retrofitted to the St. Laurent class and the "Beartrap" haul-down device.However, in 1959, the last two repeat Restigouches were altered to incorporate variable depth sonar and a helicopter landing area and became a separate class.[12] Her construction was overseen by Cdr Donald Clark CD, who also oversaw the laying-down and commencement of HMCS Bras d'Or.[17] In 1982, Nipigon was tasked with searching for and recovering any survivors from Ocean Ranger, a semi-submersible oil platform that had sunk in heavy seas.[18] Nipigon's DELEX refit was performed by Davie Shipbuilding at Lauzon, taking place from 27 June 1983 to 22 August 1984[12] and cost $16 million.[19] On 28 April 1985, the warship shelled and sank the fishing trawler Lady Marjorie after it had been abandoned by its crew and became a hazard to navigation.[20] In June 1985, Nipigon, while participating in naval exercises, suffered structural damage after a 15-metre (49 ft)[21] stress crack sheared 215 rivets in the vessel's superstructure.[12] On 27 February 1987, her CH-124 helicopter rescued crewmen from the tug Gulf Gale which had caught fire off Cabo Rojo, Puerto Rico.[12] In June 1995, the destroyer intercepted the Spanish fishing vessel Patricia Nores, and boarded her just outside Canada's exclusive economic zone.
HMCS NipigonNipigon RiverOntarioMarine Industries Ltd.Rimouski, QuebecAnnapolis-classdestroyerCH-124 Sea KingBeartrapRoyal Canadian NavyCanadian ForcesCold Warpaid offartificial reefQuebecMackenzie classSt. Laurent-classdraughtBabcock & Wilcox boilerssteam turbines3-inch (76 mm)/50 caliberturretLimbo mortarBritishRestigoucheSoviettorpedo tubesMark 46Montreal, Quebecvariable depth sonarlaid downlaunchedHMCS Bras d'Orclassification numberGeorges Vanierroyal yachtHMY BritanniaHMCS BonaventureRimouskiMaritime Forces AtlanticHMCS OttawaOcean RangerDavie ShipbuildingLauzonCanadian Coast GuardCabo Rojo, Puerto RicoPort Weller, OntarioSTANAVFORLANTBattle of the AtlanticLiverpoolTurbot Warexclusive economic zoneturbotSt. Lawrence RiverCaliberAnnapolis-class destroyersAnnapolisIroquois classRecreational dive sitesAkumalAliwal Shoal Marine Protected AreaAliwal ShoalAmed (Bali)Apo IslandApo ReefArrecifes de Cozumel National ParkBay of PigsBelize Barrier ReefBiscayne National ParkBohol SeaBowie SeamountBunakenBunaken National ParkCahuita National ParkCalve IslandCapurganáĊirkewwaCliff Villa PeninsulaCozumelDhilba Guuranda-Innes National ParkEdmonds Underwater ParkEl Ikhwa IslandsFalse BayGħar QawqlaGili IslandsGreat Barrier ReefGreat Southern ReefGuadalupe Island Biosphere ReserveHol Chan Marine ReserveiSimangaliso Marine Protected AreaSodwana BayJohn Pennekamp Coral Reef State ParkKadmat IslandKo TaoLighthouse ReefMantanani IslandsMalapascuaMartin's HavenMarsa AlamMolasses ReefMolokiniNeptune IslandsOsprey ReefPalancar ReefPanglao, BoholPescador IslandPetit Saint VincentPoor Knights IslandsPorteau Cove Provincial ParkPuerto GaleraPunta CanaRas Muhammad National ParkRondo IslandRottnest IslandSan Andrés (island)San Pedro Nolasco IslandShaʽb Abu NuħasShadwan IslandSimilan IslandsSipadanSocorro IslandSound of MullSt. Crispin's ReefTable Mountain National Park Marine Protected AreaTagangaTsitsikamma Marine Protected Area