| 翻訳と辞書 |
N&W class M
The Norfolk and Western Railway's M, M1 and M2 classes (also known as the "Mastodon-class") were a series of 4-8-0 steam locomotives owned and operated by the Norfolk and Western Railway. These were the last significant deliveries of 4-8-0s in the United States. The N&W needed to get coal shipments over a mountain range, and powerful locomotives were needed. 4-8-0s were chosen over 2-8-2s because the 4-8-0 had better adhesive weight. Thus, in 1906, the first of the most numerous American class of 4-8-0 was contracted and built by Baldwin. The M1 class only differed from the M in valve gear. Because the M1's valve gear was poorly designed, there was excessive wear, making it impossible to keep them in alignment and valves properly set. Unsurprisingly, the M1's were the first to be retired which lead to the M2 class engines with a better designed valve gear with less excessive wear.
==Survivors==
Several locomotives survive. The most well known is No. 475, part of the 1906 order, which is currently operating on the Strasburg Rail Road in Pennsylvania. No. 433, also of the 1906 order, is an outdoors static exhibit in a park Abingdon, Virginia, with a basic roof to protect it from rain. There are also two M2 locomotives, numbers 1118, 1134, and one M2c, 1151, which have resided in the Virginia Scrap Iron & Metal yard since 1950 until 2009. M2c #1151 was moved on 21 August 2009, M2 #1134 moved on 24 August, and M2 #1118 on 26 August. The 1134 has received cosmetic restoration and is now located at the Railroad Museum of Virginia, in Portsmouth Virginia. 1118 was traded for 0-6-0T no. 34 and will remain at NRHS chapter's 9th Street facility. 1151 was moved to the Virginia Museum of Transportation in Roanoke.
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「N&W class M」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.
|
|