The Pennsylvania Railroad K4 was a class of 425 4-6-2 steam locomotives built between 1914 and 1928 for the Pennsylvania Railroad (PRR), where they served as the primary mainline …

Here is a steam locomotive portrait of Pennsylvania Railroad engine #5399, a K-4S (4-6-2) "Pacific" built in Juniata during August of 1924, rebuilt with Poppet Valves and a front-end …

2012年3月10日 · This K4 single handled trains normally hauled by double headed K4s. The modifications made to the 5399 was assisted by a front end arrangement to lessen pressure …

2020年9月14日 · 5399 was fitted with Franklin Type A valve gear. This conversion is dealt with in detail in Vernon L Smith’s “One Man’s Locomotives”. The conversion to a front end throttle …

Notes for class K4: all were built with 27" x 28" cylinders, 80" drivers, cast Kiesel trailing trucks, Belpaire fireboxes with 69.9 square feet of grate area, piston valves and Walschaerts valve gear.

Another experimental member of Pennsylvania Railroad's K-4s class, No. 5399, poses in Chicago on December 14, 1947. She has the repositioned headlight and turbogenerator applied to …

1. Was this conversion by Lima in 1939 the only one? 2. Were others modernized by PRR itself. 3. How does a front-end throttle improve performance?

The k4 tests were made in 1939 and reported in Railway Mechanical Engineer as attached. In the cylinder detail it surely appears to have been cast. I was half expecting that it would have been …

Among the many photos I found a pic of K4s 5399( pg. 232). A little reserch found that it was rebuilt by Lima (!) with popet valves operated by osalating(sp) cams and " other modefications" …

Up for auction is a Brass HO NJ Custom Brass PRR K-4s No. 5399 4-6-2 Locomotive No. 856. This model was made in Korea by Daiyoung Models. Overall very nice detail, including nice in …