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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 A-3 lifeboat ： ウィキペディア英語版 A-3 lifeboat The A-3 lifeboat was an airborne lifeboat developed by the EDO Corporation in 1947 for the United States Air Force (USAF) as a successor to the Higgins Industries A-1 lifeboat. The A-3 lifeboat was a key element of "Dumbo" rescue flights of the 1950s. ==Specifications== EDO built the lifeboat of aluminum alloy to be carried by the SB-29 Super Dumbo performing air-sea rescue duties during the Pacific War. Approximately 100 of these lifeboats were built—their serial numbers began at 501 and continued in sequence. The A-3 lifeboat was long and it weighed when fully loaded and ready for attachment to the aircraft. The A-3 lifeboat could rescue 15 people. It was powered by a four-cylinder four-stroke Meteor 20 gasoline engine made by the Red Wing Motor Company. With an Ailsa Craig propeller it was expected to give a speed of under calm water conditions. Nearly of fuel were on board. The airborne lifeboat was dropped from the SB-29 on a single parachute. Like previous airborne lifeboat designs, it was self-righting. The boat had a boarding ladder, and carried food and water for the rescued people. In March 1951, ''Time'' magazine reported that the USAF was testing a radio controlled steering device for the A-3 lifeboat. After the boat dropped into the sea, a radio operator aboard the rescue aircraft would start the lifeboat's engine remotely, then direct the boat toward the survivors to make it easier for them to reach. After climbing aboard, the survivors could talk to the circling aircraft by two-way radio. A gyrocompass aboard the lifeboat would be set toward the nearest safe land, and the supply of fuel would allow for of range, with further range possible if additional water, food and fuel supplies were dropped along the way. The USAF expected all their A-3 lifeboats to be equipped with radio control by early 1952.〔''Time'', March 5, 1951. ("Science: Trained Lifeboat." ) Retrieved on September 21, 2009.〕 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「A-3 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.