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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 Airborne lifeboat ： ウィキペディア英語版 Airborne lifeboat Airborne lifeboats were powered lifeboats that were made to be dropped by fixed-wing aircraft into water to aid in air-sea rescue operations. An airborne lifeboat was to be carried by a heavy bomber specially modified to handle the external load of the lifeboat. The airborne lifeboat was intended to be dropped by parachute to land within reach of the survivors of an accident on the ocean, specifically airmen survivors of an emergency water landing. Airborne lifeboats were used during World War II by the United Kingdom and on Dumbo rescue missions by the United States from 1943 until the mid-1950s.〔Morison, 2007, p. xxvi.〕 ==Development== Air-sea rescue by flying boat or floatplane was a method used by various nations before World War II to pick up aviators or sailors who were struggling in the water.〔''Time'', August 6, 1945. ("World Battlefronts: Battle of the Seas: The Lovely Dumbos", page 1 ) and (page 2 ). Retrieved on September 6, 2009. 〕 Training and weather accidents could require an aircrew to be pulled from the water, and these two types of seaplane were occasionally used for that purpose. The limitation was that if the water's surface were too rough, the aircraft would not be able to land. Though closer to shore (e.g. in the English Channel) the RAF Air Sea Rescue Service operated High Speed Launches but until 1943, the most that could be done was to drop emergency supplies to the survivors, including an inflatable rubber dinghy carried as-standard in RAF aircraft. The airborne lifeboat was developed to provide downed airmen with a more navigable and seaworthy vessel that could be sailed greater distances than the rubber dinghy. One of the reasons necessitating this was that when ditching or abandoning an aircraft near enemy-held territory, often the tides and winds would propel the rubber dinghy toward shore, despite the efforts of the occupants to paddle away, resulting in their eventual capture. 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「Airborne 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.