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RMS ''Atrato'' was a UK steamship that was built in 1888 as a Royal Mail Ship and ocean liner for the Royal Mail Steam Packet Company. In 1912 she was sold and became the cruise ship ''The Viking''. Toward the end of 1914 she was requisitioned and converted into the armed merchant cruiser HMS ''Viknor''. She sank in 1915 with all hands, a total of 295 Royal Navy officers and men. ==Building== In the 1880s RMSP introduced a series of larger new ships to improve its scheduled services between Southampton, South America and the Caribbean. The first was the , built by Caird and Company and . She was RMSP's first new ship to have a hull of steel rather than iron. After her success RMSP ordered two more ships to an improved and enlarged version of the design from Robert Napier & Sons of Govan. ''Atrato'' was , followed by . Before these were completed RMSP ordered two more from Napier: the slightly larger in 1889 and . ''Orinoco'' had only a small amount of deck housing and was the last square-rigged sail-steamer to be built for RMSP. The Napier ships were more modern, each with a full superstructure deck and rigged as a three-masted schooner. The smaller sail plan was based on the increasing economy and reliability of their engines. ''Atrato''s boilers had a working pressure of 150 lbf/in2. She had eight of them, supplying steam to one three-cylinder triple expansion steam engine that drove a single screw. This gave her a top speed of on trials and a service speed of . The ship's passenger capacity included 176 in first class state rooms and nearly 400 emigrants in steerage class. Her cargo capacity was 2,524 tons and her coal bunkers 1,109 tons. She had of refrigerated storage space for provisions, using a dry-air refrigeration system with a discharge rate of of air ''per'' hour. She had tanks for of fresh water. ''Atrato'' was launched on 22 September 1888, named after the Atrato River in Colombia. RMSP named all of its ships after rivers; many of them with Hispanic names to reflect its trade with Latin America. 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「RMS Atrato (1888)」の詳細全文を読む スポンサード リンク
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