[19] [20] The PRR reclassified their Y3's as HH1's, renumbered them as Nos. 373-378, and assigned them to operate out of their mainline terminal in Enola, Pennsylvania and on their Harrisburg—Hagerstown branch.

Postcard depiction of Pennsylvania Railroad #3396. The Pennsylvania Railroad 's class HH1s comprised a single 2-8-8-2 type steam locomotive. [2] . Unlike most Pennsylvania Railroad steam locomotives, it had a wagon-top boiler. It was built by the …

The Pennsylvania Railroad class HH1s/Y3s are four-cylinder compound articulated locomotives that consist of six examples of ex- Norfolk and Western Railway Y3 class 2-8-8-2 (Whyte notation) wheel arrangement.

HH1 – 2-8-8-2 – In 1943 the PRR aquired six Norfolk & Western Y3, 2-8-8-2, locomotives all built in 1919. They were used in Columbus for transfer and hump service. They could also be used on the Sandusky Branch as helpers.

Feb 2, 2003 · HH1: Nicknamed 'Big Liz' by PRR men, this astoundingly powerful electric locomotive was the first heavy-duty, main-line electric locomotive the PRR built. It proved, in fact, too powerful for 1917 technology; after pulling out one too many couplers it …

PRR constructed 90 for use in commuter service and then built 30 for their subsidiary the Long Island RR. The 2-10-0 "Decapod" type was assigned class I. 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.

The Pennsylvania Railroad class HH1s/Y3s are four-cylinder compound articulated locomotives that consisted of only just six examples of ex- Norfolk and Western Railway Y3 class 2-8-8-2 (Whyte notation) wheel arrangement.

Faced with motive power shortages during World War II, the Pennsylvania Railroad purchased six Alco-built Y3s from N&W in 1943. The Pennsy gave them the designation HH1 and used them in freight service until the late 1940s.

As Locobases 67, 5153, and 15921 show, the PRR found its superheavyweight freight hauler answer in the I1 series of 2-10-0s that premiered in 1916. Their boilers were worked hard, but contained much higher percentages of superheater area in their combined heating surface totals and their boilers were pressed a full 90 psi (6.2 bar) higher.

Do you have any PRR diagrams that are not on this site? If so please e-mail me so we can arrange to scan and add them to the site! Go to the PRR freight car index!