The reference for locomotives and railcars
Nickel Plate Road classes S to S-3
United States | 1934 | 80 produced
S-3 No. 775 in August 1956 at Cleveland, Ohio
S-3 No. 775 in August 1956 at Cleveland, Ohio
Len Hillyard / collection Taylor Rush
S-2 No. 765 in May 2013
S-2 No. 765 in May 2013
Ron Shawley

The C&O T-1 class with the 2-10-4 wheel arrangement was developed from the Erie 2-8-4. Lima reduced this again by one driving axle and thus created the class S of the NKP. In the years between 1934 and 1949, a total of 80 class S, S-1, S-2 and S-3 locomotives were built, which shone with exceptional performance and pulled fast freight trains. They produced around 4,500 hp and were designed for speeds of 70 mph. They were scrapped between 1957 and 1964. Today there are still six preserved. The best known is the 765, which runs fully booked special trips on a regular basis. The 779, which still exists today, was Lima's last steam locomotive built in 1949.

VariantS, S-1S-2S-3
Built1934, 1942-194319441949
ManufacturerALCO, Lima
Axle config2-8-4 (Berkshire) 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Length100 ft 8 11/16 in
Wheelbase42 ft
Fixed wheelbase18 ft 3 in
Total wheelbase87 ft 8 1/4 in
Service weight428,500 lbs440,800 lbs444,300 lbs
Adhesive weight251,100 lbs254,300 lbs266,000 lbs
Total weight784,500 lbs802,500 lbs808,820 lbs
Axle load62,775 lbs63,575 lbs66,500 lbs
Water capacity22,000 us gal
Fuel capacity44,000 lbs (coal)
Power sourcesteam
Indicated power4,500 hp (3,356 kW)
Optimal speed45 mph
Top speed70 mph
Starting effort64,135 lbf
Power Plant
Driver diameter69 in
Boiler pressure245 psi
Expansion typesimple
Cylinderstwo, 25 x 34 in
Grate area90.3 sq ft
Firebox area460 sq ft
Tube heating area4,314 sq ft
Evaporative heating area4,774 sq ft
Superheater area1,993 sq ft1,992 sq ft1,993 sq ft
Total heating area6,767 sq ft6,766 sq ft6,767 sq ft
Calculated Values
steam locomotive
last changed: 07/2023

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