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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 Victorian Railways J class ： ウィキペディア英語版 Victorian Railways J class The J class was a branch line steam locomotive that ran on Victorian Railways from 1954 to 1972. A development of the successful Victorian Railways K class 2-8-0, it was the last new class of steam locomotive introduced on the VR. Introduced almost concurrently with the diesel-electric locomotives that ultimately superseded them, these locomotives were only in service on the VR for a relatively short time. == History == During the early 1950s, Victorian Railways embarked on a massive upgrading of its ageing locomotive fleet as part of 'Operation Phoenix', an £80 million program to rebuild a network badly run down by years of Depression-era underinvestment and wartime overutilisation.〔(【引用サイトリンク】title=ARHS Railway Museum: History 1950 - 2000 )〕 Victoria's branch line railway network, laid with rail and featuring gradients of up to 1 in 30 (3.33%), was still largely served by the D1, D2 and D3 variants of the once 261-strong 1902-era Dd class 4-6-0, which by the early 1950s was at the end of its life.〔(【引用サイトリンク】title=Victorian Goldfields Railway Steam Locomotives )〕 These were supplemented by 53 K class 2-8-0 locomotives, some of which had been built as recently as 1946. Although highly successful, the K was unsuitable for potential conversion from to in the event of the Victorian network being standardised, and VR policy was for all new locomotives to be engineered for easy conversion. As such, the building of further K class was not a desirable option. With mainline electric and diesel-electric locomotives already on order, Victorian Railways' design team opted for an updated, gauge-convertible K class as what would turn out to be their final steam locomotive design. 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「Victorian Railways J 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.