Pioneer Mining 0-4-2 Locomotives in the USA

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Class Details by Steve Llanso of Sweat House Media

Class Sam (Locobase 11660)

Data from Baldwin Locomotive Works Specification for Engines, 1888, as digitized by the DeGolyer Library of Southern Methodist University Volume 14, p. 73. Works number was 9039 in February 1888.

Specifications by Steve Llanso of Sweat House Media
ClassSam
Locobase ID11,660
RailroadPioneer Mining
CountryUSA
Whyte0-4-2T
Number in Class1
Road Numbers2
Gauge2'6""
Number Built1
BuilderBurnham, Parry, Williams & Co
Year1888
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 4.50 / 1.37
Engine Wheelbase (ft / m)10.75 / 3.28
Ratio of driving wheelbase to overall engine wheebase 0.42
Overall Wheelbase (engine & tender) (ft / m)10.75 / 3.28
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)20,000 / 9072
Engine Weight (lbs / kg)27,000 / 12,247
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)27,000
Tender Water Capacity (gals / ML)400 / 1.52
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)17 / 8.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)35 / 889
Boiler Pressure (psi / kPa)130 / 9
High Pressure Cylinders (dia x stroke) (in / mm)9" x 16" / 229x406
Tractive Effort (lbs / kg)4092 / 1856.10
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.89
Heating Ability
Firebox Area (sq ft / m2)33.30 / 3.09
Grate Area (sq ft / m2)8 / 0.74
Evaporative Heating Surface (sq ft / m2)295 / 27.42
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)295 / 27.42
Evaporative Heating Surface/Cylinder Volume250.40
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1040
Same as above plus superheater percentage1040
Same as above but substitute firebox area for grate area4329
Power L12971
Power MT654.99

Reference