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Pennsylvania class P5
United States | 1931
92 produced
P5a Modified No. 4780 from “Trains Album of Photographs Number 17: Pennsylvania Railroad”
P5a Modified No. 4780 from “Trains Album of Photographs Number 17: Pennsylvania Railroad”
Pennsylvania Railroad
P5a No. 4761
P5a No. 4761
Alvin F. Staufer, „Pennsy Power. Steam and electric locomotives of the Pennsylvania Railroad, 1900–1957”
VariantP5, P5aP5b
General
Built1931-19351937
ManufacturerAltoona, Baldwin-Westinghouse, General Electric
Axle config2-C-2 B-C-B 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Length65 ft 3 3/8 in
Wheelbase49 ft 10 in
Rigid wheelbase20 ft
Service weight392,000 lbs444,700 lbs
Adhesive weight220,000 lbs444,700 lbs
Axle load74,000 lbs77,800 lbs
Boiler
VariantP5, P5aP5b
Power Plant
Power
Power sourceelectric - AC
Electric system11,000 V 25 Hz
Hourly power3,750 hp (2,796 kW)5,250 hp (3,915 kW)
Top speed90 mph70 mph
Calculated Values
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