The Pennsylvania Railroad (PRR) A3 was a class of 0-4-0 steam locomotives built at Altoona Works between 1895 until 1905. The A3s were used as switchers for railroad cars at various PRR yards. Later, some A3s were converted to A3a, which had saddle tanks instead of tenders. [1]

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 the removal of the double-bogie slopeback tender.

Mar 19, 2000 · 85 of these A3 switchers were built through 1905 by the Altoona, Pa. Machine Shops. 20 of the A3's were converted to tank engines , classified as A3a and tenders removed. The A2 class looks almost the same as A3.

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 kept it for use on small industrial branches, especially those with street trackage and tight turns. A1; A2; A3; A4; A5s; A6

The Pennsylvania Rail Road (PRR) A3 Switcher is an 0-4-0 tender switching (shunting) locomotive designed by Kenzo Hiraoka. He has covered 3 1/2" gauge, and 7 1/2 & 7 1/4 inch gauges in a single...

Locomotives of the Pennsylvania Railroad. See also PRR locomotive classification. The following 120 pages are in this category, out of 120 total. This list may not reflect recent changes.

Feb 27, 2019 · I've been quite happy with my A3, though I did redesign it to be one of the saddle tank versions the PRR built. That adds a few pounds of tank and water for traction. It will pull two adults around the St.Croix track with a 1% ruling grade.

Pennsylvania Railroad's class A3 were a class of 81 0-4-0 steam locomotives. They were built by the Pennsylvania Railroad's Altoona Shops from 1895 until 1905. Designed in 1895, this class had 50" drivers with a slope back tender, the boiler was of …

Oct 19, 2018 · It is a 3.5” gauge, 1:16 scale (3/4” to a foot) model of an 0-4-0 Pennsylvania Switcher Type A3. The drivers are 3.25” diameter and the cylinder bore is 7/8” with a stroke of 1-1/4". It will have Walshaerts type valve gear, will be coal-fired with a running pressure of 100psi.

Feb 2, 2003 · A3: Formerly class U; 81 were built at Altoona between 1887-1891. 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 Altoona, 1906-1913. The drivers were 50" and a Belpaire firebox was used.