The sole K29s, PRR 3395, was constructed by the American Locomotive Company's Schenectady works in 1911 as a demonstrator engine for the Pennsylvania Railroad. The success of the single experimental K29s lead to the development of the equally successful K4s class Pacific and L1s class Mikado locomotives. [ 4 ]

In 1929, the PRR performed tests and research to see if a larger Pacific then the K4s would be economical. These tests culminated in the construction of two prototype locomotives, classed K5. They were both fitted with a much wider boiler than the K4s, but one dimensionally similar to those of the I1s class 2-10-0 decapods.

The PRR inherited twelve "Pacific" locomotives when the railroad absorbed the Vandalia Line, in 1917. These ALCO built 4-6-2 locomotives weighed 263,000 pounds and had 80" drivers, 24 x 26 cylinders, a 200 psi boiler pressure and they exerted 31,824 lbs of tractive effort.

72 blt by Alco and by PRR Altoona 1911-1913. Same as K2 except higher firing deck (77" vs 66") Pittsburgh, PA. Notes for classes K2, K2s, K2a and K2sa: all had 24" x 26" cylinders, 80" drivers, fabricated trailing trucks, Belpaire fireboxes with 55.4 square feet of grate area, piston valves and Walschaerts valve gear. 2 blt Altoona in 1911.

The sole K29s, PRR 3395, was constructed by the American Locomotive Company's Schenectady works in 1911 as a demonstrator engine for the Pennsylvania Railroad. The success of the single experimental K29s lead to the development of the equally successful K4s class Pacific and L1s class Mikado locomotives.

PRR Class K29. 4-6-2 Pacific of 1911. They were built in both the PRR's own Shops in Altoona, Pa and at The Baldwin Locomotive Works in Philadelphia, Pa. Through out their years of service, they were basically the same Locomotives they were when built.

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.

The lone example spent most of its life on the PRR's Pittsburgh division main line and was retired around 1929. [4]

Feb 2, 2003 · The PRR snapped up eight of its 1926-1929 built locomotives at bargain-basement prices, putting seven in service and using one for spares. They didn't last more than ten years in service, but for the price, they were a bargain.

The performance of the de Glehn, as measured on the Test Plant, was used for comparison with later PRR locomotive classes such as the K29 and K2SA. [ 3 ] The de Glehn was found to be too light for use by the PRR [ 4 ] [ page needed ] and saw little service beyond their shops.