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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 LNER Peppercorn Class A2 ： ウィキペディア英語版 LNER Peppercorn Class A2 The London and North Eastern Railway (LNER) Peppercorn Class A2 is a class of steam locomotive designed for express passenger work by Arthur Peppercorn, the chief designer of the LNER after Edward Thompson. All save the first of the 15 built were constructed under British Railways after nationalisation in 1948. == Construction == The first of the Peppercorn A2s No.525 ''A.H.Peppercorn'' was outshopped from Doncaster in December 1947 on the eve of nationalisation. The modernity of the design was immediately apparent. The first two of the class were turned out in LNER apple green livery and this colour was also applied to the next 13 engines delivered between January and August 1948. Repainting in British Railways Brunswick green began the following year. The design was a move towards modernity, with features such as a self-cleaning smoke-box and electric lighting. Initially the Self Cleaning apparatus caused steaming troubles when combined with a single chimney, but changes to the draughting, notably the inclusion of Double Kylchap Blastpipe brought about the free steaming capability along with the convenience of less frequent smoke-box cleaning. Some A2's retained their single chimneys, though the Double Blastpipe did bring about notable free running on the A2's to which it was fitted, as well as am improvement in fuel economy. the 50 sq ft grate of the A2's, a nod to the P2 lineage of both the Thompson and Peppercorn boilers, meant the A2's were capable of high power and endurance, however, with the exception of the Aberdeen road, there was little need for this large grate firebox in the postwar era, and as a result, on comparable duties the A2's were heavier on fuel than the Gresley machines which pre-dated them, but for outright power and haulage capability, they were the logical successor to the P2 class, and finally provided the answer the Edinburgh-Aberdeen route required. As a result, they were amongst the last multi-cylindered express steam locomotive classes to remain in service in the UK. 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「LNER Peppercorn Class A2」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.