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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Liverpool-class lifeboat ： ウィキペディア英語版 Liverpool-class lifeboat The ''Liverpool''-class lifeboat was a non self-righting boat operated by the Royal National Lifeboat Institution (RNLI) from its stations around the coast of the United Kingdom and Ireland. The boats were designed for carriage launching and there were two types built, single and twin engined. ==History== The ''Liverpool''-class, designed by James Barnett, was derived from the and had many similarities with it. Lifeboatmen at many stations preferred non self-righting boats due to their better stability and the Liverpool was designed to be light enough for carriage launching at these stations. The single engined version entered service in 1932 and was powered by an RNLI designed, Weyburn Engineering built AE6 six cylinder 35 hp petrol engine mounted in a watertight compartment. Like all early motor lifeboats, the Liverpool class carried an auxiliary sailing rig and had a drop keel just forward of the engine room. 28 boats were built between 1931 and 1941. The introduction of tractors to assist with carriage launching enabled the RNLI to consider a heavier, twin engined version of the Liverpool and a prototype was ordered but was destroyed in an air raid at the builder's yard at Cowes in May 1942. Production got underway early in 1945 and the boat was powered by two 18hp Weyburn AE4 four cylinder petrol engines mounted in a watertight compartment. The extra redundancy of twin engines reduced the need for auxiliary sails. 31 boats were built between 1945 and 1954, the last 21 of which were powered by 20hp Ferry Kadenacy FKR3 diesels. 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「Liverpool-class lifeboat」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.