Satsop 4-6-0 "Ten-Wheeler" Locomotives in the USA

Class Details by Steve Llanso of Sweat House Media

Class William Shorter (Locobase 11650)

Data from Baldwin Locomotive Works Specification for Engines, 1888, as digitized by the DeGolyer Library of Southern Methodist University Vol 15, p. 232. Works number was 10657 in February 1890.

A diminuitive wood-burning Ten-wheeler, the #3 spent its relatively long career on Washington State's Olympia Peninsula as a logging engine. Not long after it arrived on the Satsop, that railway was absorbed by the Washington Southern. By 1895, the WS was purchased by the Peninsular Railroad, whose name stayed on its tender for the next 40 years.

Finally, in February 1896, the #3 was sold to Simpson Logging of Shelton, Wash, one of the biggest logging companies in the state and one that is still active in 2010. (The 3 expired decades ago ...)

Principal Dimensions by Steve Llanso of Sweat House Media
ClassWilliam Shorter
Locobase ID11,650
Number in Class1
Road Numbers3
Number Built1
BuilderBurnham, Parry, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)12.50 / 3.81
Engine Wheelbase (ft / m)22.65 / 6.90
Ratio of driving wheelbase to overall engine wheebase 0.55
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)48,000 / 21,772
Engine Weight (lbs / kg)70,000 / 31,752
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)
Tender Water Capacity (gals / ML)2500 / 9.47
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)27 / 13.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)54 / 1372
Boiler Pressure (psi / kPa)140 / 9.70
High Pressure Cylinders (dia x stroke) (in / mm)15" x 24" / 381x610
Tractive Effort (lbs / kg)11,900 / 5397.76
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.03
Heating Ability
Firebox Area (sq ft / m2)89.10 / 8.28
Grate Area (sq ft / m2)14.40 / 1.34
Evaporative Heating Surface (sq ft / m2)875 / 81.32
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)875 / 81.32
Evaporative Heating Surface/Cylinder Volume178.25
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2016
Same as above plus superheater percentage2016
Same as above but substitute firebox area for grate area12,474
Power L13390
Power MT467.10

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Wes Barris