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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 McKeen railmotor ： ウィキペディア英語版 McKeen railmotor The McKeen Railmotor was a 6-cylinder self-propelled railcar. When McKeen Company of Omaha, Nebraska, U.S.A. first unveiled the car in 1905, the McKeen was among the first engines with a gasoline-powered motor.〔O'Connell, J. (1954) ''Railroad Album: The Story of American Railroads in Words and Pictures.'' Popular Mechanics Press. p 79.〕 Revisions to the McKeen car led to the modern self-propelled gasoline rail-motor vehicle, and the "contours of the porthole windows, the front-mounted gasoline engines, and other features anticipated the streamline concept."〔Klein (1989) p 298 as cited in Grant, H.R. (2005) ''The Railroad: The Life Story of a Technology.'' Greenwood Press. p 83.〕 ==Background== William R. McKeen was the superintendent of motive power and machinery at Union Pacific Railroad in 1904 when Edward H. Harriman, the head of UP, began encouraging him to develop the machine. The result of his experiments that year was a "knife-nosed" or "windsplitter" unit that slightly resembled a submarine on wheels, having a distinctive pointed nose, a rounded rear end, center-entry doors and porthole windows. Two lengths, , were offered, and both could be configured with either a large mail and express area ahead of the center doors, a smaller mail and express area, or fully fitted with seats, which provided a maximum passenger capacity of 64 or 105 respectively. Cheaper and more powerful than battery-powered vehicles, the McKeen was more flexible than steam locomotives and could operate at competitive speeds.〔Grant, H.R. (2005) ''The Railroad: The Life Story of a Technology.'' Greenwood Press. p 83.〕 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「McKeen railmotor」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.