Jul 5, 2018 · The new locomotive was designated as the S1 class, and PRR collaborated with the American Locomotive Company, the Baldwin Locomotive Works, and the Lima Locomotive …

Nov 17, 2020 · The first experimental duplex on the PRR was the S1, a huge rigid frame duplex locomotive of the 6-4-4-6 wheel arrangement. This engine was over 146' long! This locomotive …

Dec 24, 2023 · This O scale model of the S1 was built from plans submitted to Ed Alexander whilst the 12" to the foot model was being built . Both model and real engine were on display …

Jan 10, 2025 · PRR 6100, S-1, 1939 : Description: WB. Here is an image of an official photo that was taken in Altoona, Pennsylvania, in 1939. Shown here in the Pennsylvania Railroad's …

The PRR S1 class steam locomotive (nicknamed "The Big Engine") was a single experimental duplex locomotive of the Pennsylvania Railroad. It was designed to demonstrate the …

The Pennsylvania Railroad Class S1 steam locomotive (nicknamed "The Big Engine") was a single experimental locomotive, the longest and heaviest rigid frame reciprocating steam …

The PRR S1 class steam locomotive was a single experimental duplex locomotive of the Pennsylvania Railroad. It was designed to demonstrate the advantages of dup...

Sep 11, 2018 · The PRR S1 was a unique duplex locomotive that utilized a 6-4-4-6 wheel arrangement. A six-wheel leading truck with 36 in (.91 m) wheels was positioned at the front of …

Since they no longer fitted on the turntables, the PRR built special track triangles (wyes) for turning. Despite the bogies that could be moved laterally by 2.25 inches, it soon became clear …

Mar 20, 2023 · The PRR S1 is a most impressive locomotive, in either prototype or model form. In both cases it presents problems on where it can be operated. As a model it requires a very …