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Philadelphia & Reading class A-4
United States | 1902 | 19 produced
A-4 of Colorado Fuel & Iron Corporation
A-4 of Colorado Fuel & Iron Corporation

Since the Philadelphia & Reading had access to anthracite culm as cheap fuel, switchers were also built as Camelbacks with Wootten fireboxes. This included the class A-4, which had a 0-4-0 wheel arrangement and was built a total of 19 times in 1902 and 1903. They were modernized between 1905 and 1907 with higher boiler pressure and a larger tender.

Only number 1187 has survived, which was sold to the E&G Brooke Iron Company in 1946 and was in use there until 1962. It was now purchased by the Strasburg Railroad and was used there on short runs in front of passenger trains. However, since the locomotive did not produce enough steam for line service, it was retired in 1967. In 2020 it was purchased by the Age of Steam Roundhouse and is being cosmetically restored there.

General
Built1902-1903
ManufacturerBaldwin
Axle config0-4-0 (Four-coupled) 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Length48 ft 10 in
Service weight104,000 lbs
Adhesive weight104,000 lbs
Axle load52,000 lbs
Water capacity7,300 us gal
Fuel capacity11,000 lbs (coal)
Power
Power sourcesteam
Starting effort20,890 lbf
Power Plant
Driver diameter50 in
Boiler pressure200 psi
Expansion typesimple
Cylinderstwo, 16 x 24 in
Boiler
Calculated Values
steam locomotive
switcher
camelback
last changed: 03/2024
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