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Download or read book The German Battlecruiser SMS Derfflinger written by Marsden Samuel and published by . This book was released on 2021-01-31 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: Quite correctly the Derfflinger class was considered to be the best battle cruisers completed up until the end of the First World War. Aesthetically they were also the most handsome. Design work was begun in October 1910 and continued until October 1912. Derfflinger had the sisterships Lützow and the near sister Hindenburg. The design represented the change to a new generation of German Großen Kreuzer. After the final design of cruiser J there were still outstanding issues for the following design. In April 1910 the General Navy Department was asked to prepare the requirements for the cruiser of 1911. The issues were primarily the number of shafts, machinery and armament. A three shaft arrangement would allow the employment of a diesel engine on the center shaft. The advantages of this were better thermal efficiency, easier transfer of fuel, saving in personnel and the price. The General Department thought the change to 30.5cm caliber was essential. The weight increase of 8 30.5cm guns over 10 28cm guns was just 36 tons and the latest English battleships were fitted with 300mm armor. If the cruisers were expected to fight in the line, the increase was mandatory. However, von Tirpitz disagreed and the matter remained unresolved.