The Pennsylvania Railroad (PRR) class I1s steam locomotives were the largest class of 2-10-0 "Decapods" in the United States. From 1916 to 1923, 598 locomotives were produced (123 at …

It is one of the Pennsylvania Railroad's class I1s steam locomotives, which were the largest of the Decapod type (2-10-0) in the US, weighing 366,500 lbs, 334,500 lbs on their 62” drivers. Five …

Mar 1, 2023 · What followed in quick succession was astounding: the gradual accumulation of 598 Decapods, including 475 from PRR’s stalwart supplier Baldwin. This cemented their status as …

Beginning in 1930, almost all of the I1s engines were redesignated I1sa, which indicated a modification to the valves to permit running at cutoffs of up to 78%, equated to a starting …

The PRR decapod, class I1s, was unlike the Russian decapod; it was huge, taking advantage of the PRR's heavy trackage and high axle loading, with a fat, free-steaming boiler that earned …

Dec 7, 2021 · #4483 was built in May of 1923 by the Baldwin Locomotive Works in Eddystone, Pennsylvania for the Pennsylvania RR, #259 of a lot of 475, c/n 56534. This "Decapod" is the …

PRR #4483 is a 2-10-0 Decapod type steam locomotive that was build by Baldwin Locomotive Works in 1923. The locomotive was built as a Pennsylvania Railroad Class I1s but was …

The Pennsylvania Railroad's class I1s steam locomotives were the largest class of 2-10-0 "Decapods" built in the United States, with 598 built 1916–1923 (Altoona: 123, Baldwin: 475). …

Sep 19, 2019 · Trust me, no locomotive with one of more blind drivers (line PRR I1s) will ever operate over railroads which maintain self guarding switch frogs. We derailed the 4483 three …

The Pennsylvania Railroad's class I1s steam locomotives were the largest class of 2-10-0 "Decapods" in the United States. From 1916 to 1923, 598 locomotives were produced (123 at …