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 typeSteam
BuilderAlco-Schenectady
Build dateJanuary 1914
Specifications
Configuration:
​
 • Whyte0-6-0
Gauge4 ft 8 1⁄2 in (1,435 mm)
Driver dia.51 in (1,295 mm)
Loco weight153,800 lb (69.8 t)
Fuel typeOil
Boiler pressure165 lbf/in2 (1.14 MPa)
CylindersTwo
Cylinder size20 in × 26 in (508 mm × 660 mm)
Performance figures
Tractive effort31,200 lbf (138.78 kN)
Career
OperatorsSpokane, Portland and Seattle Railway
ClassA-3
LocaleUnited States
Retired1952
sources: [1]

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