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HMS ''Calgarian'' was an armed merchant cruiser of the Royal Navy. She was sunk by the U-boat off Rathlin Island, Northern Ireland on 1 March 1918. The initial strike did not sink her and the crew managed to contain the damage. The U-boat torpedoed her again, despite the protection of other ships. She was hit by 4 torpedoes and quickly sank with the loss of two officers and 47 ratings. ==Construction== SS ''Calgarian'' was built for the Allan Line's primary service between Liverpool, England and the Canadian ports of Quebec and Montreal. The passenger and mail steamer was built by Fairfield Shipbuilding and Engineering Company Ltd., Glasgow with propulsion consisting of four Parsons type steam turbines. External appearance was similar to an earlier ship built for the line, ''Alsatian'' constructed by another builder, but the ships differed in engineering design details. ''Calgarian'' was length on waterline, length between perpendiculars, molded beam, with a depth molded to the bridge deck of and a mean designed draft of and gross tonnage〔The cited reference is not the equivalent of today's Gross Tonnage standardized in the 1960s. It is likely, though not specified, one of several measures of Gross Register Tonnage of the registering authority and time.〕 of 18,000 tons. There were eleven watertight bulkheads and a double bottom to the turn of the bilge. Passenger capacity was 200 first class, 500 second class and 1,000 third class with a crew of 500 officers and men. ''Calgarian'' had eight decks: A being the boat deck, B the promenade, C the bridge, D the shelter deck, E upper deck, F main deck, G the lower and H the orlop with passenger accommodations on A through F decks. A somewhat novel feature was provision of a "scouting" motor launch capable of 7 knots with wireless and of steel wire tethering it to the ship for use in fog. The outer port shaft was driven by a high pressure turbine that exhausted into a medium pressure turbine driving the outer starboard shaft. The two middle shafts, capable of reversal, were each driven by a low pressure turbine, which in emergencies could each be driven by exhaust from the high pressure turbine. Each shaft drove a four bladed bronze propeller for a designed sea speed of 19 knots. Steam was provided by six double ended and four single ended forced draft boilers divided between two boiler rooms. On trials in the Clyde ''Calgarian'' attained 21.25 knots and on a double run for contract speed made 20.63 knots, a knot and a half above required service speed. Electrical power was provided by three 250kW steam driven generating sets with an 18kW emergency generator located on the shelter deck above the waterline. 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「HMS Calgarian (1913)」の詳細全文を読む スポンサード リンク
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