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HMCS ''Nipigon'' was an that served in the Royal Canadian Navy and later the Canadian Forces. She was the second Canadian naval unit to carry this name. Entering service in 1964, she was named for the Nipigon River that flows through Ontario. ''Nipigon'' served throughout the Cold War on the Atlantic coast of Canada. She was paid off in 1998 and sold for use as an artificial reef off the coast of Quebec. ==Design and description== The Royal Canadian Navy had intended to place a six ship order under the of destroyer escorts; however, during the design phase, the last two vessels ordered were altered to the DDH design and were classed under the new ''Annapolis'' designation.〔Hadley, p.141〕 The ships measured in length, with a beam of and a draught of .〔Gardiner and Chumbley, p.44〕〔Macpherson and Barrie have the ships at 371 feet long, and a draught of 13 feet 8 inches.〕 Initially, the ships displaced 〔Macpherson and Barrie, p.260〕〔Macpherson and Barrie states that the displacement was 2,400 tons, while Conway's claims it was the same as the ''St. Laurent'' class, which was 2,000 tons.〕 and had a complement of 228.〔Gardiner and Chumbley, p.46〕〔Macpherson and Barrie have the complement at 246. (12 officers and 234 enlisted)〕 The ships were powered by two Babcock and Wilcox boilers providing to the two-shaft English-Electric geared steam turbines.〔 This gave the ships a maximum speed of .〔 The ships were initially armed with two 〔Caliber denotes the length of the barrel. In this case, 50 caliber means that the gun barrel is 50 times as long as it is in diameter〕 dual-purpose guns mounted in a single turret forward. The extra topweight of the helicopter required the return of the American Mk 33 3-inch gun over the heavier 3-inch/70 caliber guns used on the preceding class.〔 The guns could fire 45 - 50 rounds per minute with a lifespan of 2,050 rounds. The guns were placed in a Mk 33 mount. The mounting allowed the guns to elevate from -15° to 85°. The elevation rate was 30° per second and train rate was 24° per second. The mounts could train 360°.〔 For anti-submarine warfare, the ships were armed with a Mk 10 Limbo mortar.〔 The Limbo was a British-designed three-barrel mortar capable of launching a projectile shell between . Placed on stabilized mountings, the projectiles always entered the water at the same angle. The total weight of the shell was . They also had a Mk.4 thrower with homing torpedoes.〔 Initially the ships were outfitted with one SPS-12 air search radar, one SPS-10B surface search radar, and one Sperry Mk.2 navigation radar.〔 For sensing below the surface, the class was given one SQS-501 high frequency bottom profiler sonar, one SQS-502 high frequency mortar control sonar, one SQS-503 hull mounted active search sonar and one SQS-504 VDS medium frequency active search sonar.〔 For fire control purposes they were given one Mk 64 GFCS fire control with SPG-48 tracker (GUNAR). 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.〔 This allowed the destroyer escorts to deploy with one CH-124 Sea King helicopter.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「HMCS Nipigon (DDH 266)」の詳細全文を読む スポンサード リンク
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