SP&S Class A3

Spokane, Portland and Seattle Railway's Class A-3 was a class of 0-6-0 steam locomotive switchers.

A-3
Type and origin Power type Steam Builder Alco-Schenectady Build date January 1914
Specifications Configuration: ​  • Whyte 0-6-0 Gauge 4 ft 8 ^1⁄2 in (1,435 mm) Driver dia. 51 in (1,295 mm) Loco weight 153,800 lb (69.8 t) Fuel type Oil Boiler pressure 165 lbf/in^2 (1.14 MPa) Cylinders Two Cylinder size 20 in × 26 in (508 mm × 660 mm)
Performance figures Tractive effort 31,200 lbf (138.78 kN)
Career Operators Spokane, Portland and Seattle Railway Class A-3 Locale United States Retired 1952
sources: [1]

References

1. Gartner, John T. (1990). North Bank Road, The Spokane, Portland and Seattle Railway. WSU Press. p. 206.