The ALCO S-2 and S-4 are 1,000-horsepower (746 kW) diesel electric switcher locomotives produced by ALCO and Canadian licensee Montreal Locomotive Works (MLW). [1] Powered …

The ALCO S2 and S4 were 1,000 horsepower diesel electric switchers produced by ALCO and Canadian licensee Montreal Locomotive Works (MLW). The two locomotives differed only in …

Click on a locomotive to view pictures Roster Options: Main Roster Group by model Show All thumbs All S4s PRR Rolling Stock

The 4-6-4 arrangement was seen on the PRR only on electric locomotives. As a steam locomotive arrangement, it was poorly suited to the PRR's mountainous terrain, wasting much potential …

This roster outlines the dieselization of the Pennsylvania Railroad, from 1937 through 1968. It is presented in two parts: First and Second Generation Locomotives. Photo: PRR U25B #2530 …

PPR管分为S3.2、S4、S5、S6.3这个是表示PPR水管的管系列，管系列是区分PPR水管承压能力的一个参数，由此可以判断PPR水管的承压能力。 每一种管径规格的的PPR水管都会对应不 …

Photo Caption: "Alco S-4 #8434, 1000-hp, at Detroit, Mich." Shown here is Pennsylvania Railroad engine #8434, an AS-10 switcher built by the American Locomotive Company in February of …

Since the ICC had mandated PRR control of the New Haven, the Lehigh & Hudson River was included to provide for a direct PRR New Haven freight connection via Maybrook, ny and the …

There are numerous individual ALCO locomotives that are preserved in museums or heritage railways. In particular please see sublists List of preserved locomotives in the United States …

2022年3月10日 · PP-R管材有S5、S4、S3.2、S2.5等4个管系列，通常热水管道有S3.2、S2.5两个管系列，冷水管道系统用S5、S4、S3.2 三个管系列。 在管道系统设计中，按不同使用要求， …