Live steam entered all four cylinders through 12" (305 mm) piston valves. These were set for a maximum cutoff of 50% and a long 2" (50.8 mm) lap. The Railway Review added that an …

Unlike most Pennsylvania Railroad steam locomotives, it had a wagon-top boiler. It was built by the American Locomotive Company (ALCO) in 1911. For 17 years, the single HH1s served as …

Here is a steam locomotive portrait of Pennsylvania Railroad engine #3700, the HC-1S (2-8-8-0) steam locomotive built in Juniata during June of 1919 and retired in August of 1929 after just …

ONE OF the most interesting articulated locomotives ever built was this single-expansion type, the most powerful steam engine the Pennsylvania has ever had.

2003年2月2日 · HC1s: One built by the PRR at Altoona Works in 1919 for road service. Proved to be wrongly proportioned and badly designed; its failure turned the PRR off from articulated …

The PRR only owned one type of Decapod, class I1s, but they owned 598 of them, one of the largest classes of identical power in the United States. I1s/I1sa - heavy freight hauler.

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H21a, H22, H22a, and H25 Hopper Cars PRR, 1 through 9999 Chart. Locomotive Classes and Ownership, Lines West of Pittsburgh. 1918 Track Plan East Altoona (Part 2 of 3).

PRR 3700, HC-1S, c. 1925 New Portage. Here is an original photo by Bruce D. Fales. Shown here is Pennsylvania Railroad engine #3700, an HC-1S (2-8-8-0)

PRR 3700, HC-1S, 1920 Curve. Here is a photo via the Smithsonian Institution that was taken at the Horseshoe Curve near Altoona, Pennsylvania, on 28 November 1920. Shown here is …