翻訳と辞書 Words near each other ・ NZR F class ・ NZR FA class ・ NZR FM guards van ・ NZR G class (1874) ・ NZR G class (1928) ・ NZR H class ・ NZR J class ・ NZR J class (1874) ・ NZR J class (1939) ・ NZR JA class ・ NZR JB class ・ NZR K class ・ NZR K class (1877) ・ NZR K class (1932) ・ NZR KA class ・ NZR KB class ・ NZR L class ・ NZR LA class ・ NZR M class ・ NZR N class ・ NZR NA class ・ NZR NC class ・ NZR O class ・ NZR OA class ・ NZR OB class ・ NZR OC class ・ NZR P class ・ NZR P class (1876) ・ NZR P class (1885) ・ NZR Q class (1878) Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク NZR KB class ： ウィキペディア英語版 NZR KB class The NZR KB class of 1939 was a class of mixed traffic steam locomotives that operated on New Zealand's railway network. They were built by the New Zealand Railways Department (NZR) after the success of the K class to meet the increasing traffic demands on the Midland Line in the South Island. The locomotives had a wheel arrangement of 4-8-4 and first appeared with distinctive streamlining, mainly to hide their ACFI feedwater systems. ==History== Following the success of the K class in the North Island, there was a need for similar locomotives to operate the Midland Line, primarily between Springfield and Arthur's Pass. These new locomotives incorporated a number of improvements upon the K class, including a re-designed plate frame to eliminate cracking issues the K class experienced; roller bearings on all wheels; hydrostatic lubrication throughout; and the inclusion of the ACFI feed-water system that had been pioneered on K 919. The ACFI equipment's aesthetic appearance had been criticised, hence the KB and contemporary KA classes were both fitted with shrouding to obscure it. The KB class were technically very similar to the KA class, but were distinguished by the inclusion of a booster on the rear axle of the trailing bogie and Nicholson thermic syphons in the firebox. The use of the booster, first proposed for the K class in 1932, was mainly due to steeper gradients and heavy freight trains on the Midland Line, especially Cass bank. Additional piping and sanding equipment for the booster gave the KB a slightly different appearance to the KA. The booster was intended solely for use at low speed, and some class members ultimately had the booster removed due to problems such as jamming in gear, reducing the locomotive's top speed. Building of the locomotives commenced in 1939. Construction and assembly took place at NZR's Hillside Workshops. The first of the six member class was produced before the first of the KA class then under construction at Hutt Workshops. All of the class were in service by 1940. 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「NZR KB class」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.