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The Zeppelin LZ 1 was the first truly successful experimental rigid airship. It was first flown from a floating hangar on Lake Constance, near Friedrichshafen in southern Germany on 2 July 1900.〔Lueger, Otto: Lexikon der gesamten Technik und ihrer Hilfswissenschaften, Bd. 1 Stuttgart, Leipzig 1920., S. 404-412. (Luftschiff )〕 "LZ" stood for ''Luftschiff Zeppelin'', or "Airship Zeppelin" == Design and development == Count Zeppelin had been devoting his energies to the design of large rigid-framed airships since his retirement from the Army in 1890. In 1898 he established the Gesellschaft zur Förderung der Luftschifffahrt. The company had a subscribed capital of 800,000 marks, of which Zeppelin contributed 300,000 marks: the remainder was provided by various industrialists, including 100,000 marks contributed by Carl Berg, whose company provided the aluminium framework of the airship. The company first constructed a large floating shed to contain the airship. This arrangement was decide on firstly because Zeppelin believed that landing the ship over water would be safer and secondly because the floating shed, moored only at one end, would turn so that it was always facing into the wind.〔Robinson 1973 p.23〕 The LZ 1 was constructed using a cylindrical framework with 16 wire-braced polygonal transverse frames and 24 longitudinal members covered with smooth surfaced cotton cloth. Inside was a row of 17 gas cells made from rubberized cotton. The airship was steered by forward and aft rudders and propulsion was provided by two 14.2 hp Daimler internal-combustion engines, each driving two propellers mounted on the envelope. Pitch control was by use of a 100 kg (220 lb) weight suspended beneath the hull which could be winched forward or aft to control its attitude. Passengers and crew were carried in two 6.2 metre long aluminium gondolas suspended forward and aft.〔Robinson 1973, p.23〕 Construction of the airship began on 17 June 1898, when the first sections of the framework were delivered from Berg's factory in The framework was completed by 27 January 1900. Inflation of the gasbags took place during June and the airship was first taken out of the shed on the evening of 2 July, with Hauptmann Hans Bartsch von Sigsfeld of the Prussian Airship Battalion at the controls.〔Robinson 1973 p.25〕 The first flight revealed serious structural deficiencies in the framework, and an attempt to remedy this was made by incorporating the walkway between the gondolas into a rigid keel structure. At the same time the moveable weight was increased to 150 kg (330 lb), the aft rudders moved from either side of the envelope to below it, and an elevator fitted below the nose.〔Robinson 1973, pp.27-8〕 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「Zeppelin LZ 1」の詳細全文を読む スポンサード リンク
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