Pennsylvania Railroad class J28
Class of American 2-6-2 locomotives
From Wikipedia, the free encyclopedia
The Pennsylvania Railroad's class J28 comprised two experimental 2-6-2 "Prairie" type steam locomotives.
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PRR J28 #7453 | |||||||||||||||||||||||||||||||||
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History
In 1905, the Pennsylvania Railroad needed a better steam locomotive than the class E 4-4-2 "Atlantic" type, which were increasingly becoming obsolescent in the face of heavier traffic and locomotive design development.[1] Therefore, the railroad ordered six experimental locomotives, with two 2-6-2s from Alco-Schenectady being among the lot. With one each being allocated to the Fort Wayne and Pittsburgh divisions, they were tested extensively and failed in railroad service. However, they were still on the roster by 1924.[2]
Specifications
The two J28s had 80 in (2.0 m) drivers and a 34.25 ft (10.44 m) engine wheelbase. Engine #7453 had inboard piston valves and Stephenson valve gear, while #2761 had outside piston valves and Walschaerts valve gear.[2] They each weighed 377,500 lb (171,200 kg) with the tender, able to hold 7,000 US gal (26,000 L; 5,800 imp gal) of water and 13.5 short tons (12.2 t; 12.1 long tons) of coal. They had 27,504 lbf (122.34 kN) of tractive effort, had a 89 square feet (8.3 m2) of firebox space and a grate area of 54 square feet (5.0 m2) [2]. Despite these specifications and more, the J28 proved insufficient for the Pennsylvania Railroad.[citation needed]
