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Zeppelin R Class : ウィキペディア英語版 | Zeppelin R Class
The Zeppelin R Class was a type of rigid airship developed by Zeppelin Luftschiffbau in 1916 for use by the Imperial German Navy and the German Army for bombing and naval patrol work. Introduced in July 1916 at a time when British air defences were becoming increasingly capable, several were lost in the first months of operation, leading the Germans to reconsider their technical requirements and eventually to develop airships capable of bombing from a greater height. Most surviving examples were modified to meet these requirements, by reducing weight at the expense of performance. A total of 17 were built. ==Background== Work on the R class started in March 1915, when the German Navy asked both Zeppelin and Schütte-Lanz to prepare studies for a new class of airship which would be limited in size by the existing sheds. The proposals were rejected by the Navy's aviation department, and a decision was made to design a new class of six-engined airships regardless of size. Double sheds at Tondern and Seddin were to be lengthened and six new double hangars would be constructed, four of them at a new base at Ahlhorn. A new large assembly shed was built at Friedrichshafen, and a second Zeppelin factory at Staaken near Berlin was established.〔Robinson 1971, pp.153-4〕
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