Class A was the 0-4-0 type, an arrangement best suited to small switcher locomotives (known as "shifters" in PRR parlance). Most railroads abandoned the 0-4-0 after the 1920s, but the PRR …

The A4s were a class of 0-4-0 switcher steam locomotives built by Altoona Works for the Pennsylvania Railroad from 1906 to 1913. They had a Belpaire firebox and 50" drivers.

The PRR's original locomotive classification system was in force between 1867 and 1895. Under this system, each significant locomotive type was assigned a different class letter even if the …

The Pennsylvania Railroad 's class A5s was the most powerful class of 0-4-0 steam locomotives. The Pennsylvania Railroad built 47 in its Juniata Shops between 1916–1924. They were all …

Feb 2, 2003 · Equipped with the PRR's trademark Belpaire firebox. Some converted to Class A3a tank locomotives, some surviving into the 1930s in this form. A4: 64 of these were built at …

Feb 16, 2003 · Like most PRR designs, these burned fuel in Belpaire fireboxes that were scarcely visible in the large cabs. Virtually all were converted to A-3a saddle tank engines, which saw …

PRR Class A; Altoona Machine Shops, 1869-1891.

The PRR classified articulated locomotives and joined locomotive units by using multiples of the previous classifications. Non-Articulated steam: 1320 - 2-2-2-0 locomotive, based on the …

Class: Wheel Arr. Dr. Dia. Cylinders Diameter x Stroke: Boiler Press. Ad. Wt. EW WO: Grate Area: Evap. Surface: Sup. Surface: Remarks: A1: 0-4-0T: 44in: 15x22in ...

Jul 5, 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 …