Pittsburg, Shawmut & Northern 2-10-2 "Santafe" Locomotives in the USA

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Class Details by Steve Llanso of Sweat House Media

Class 98 (Locobase 5365)

Data from table in June 1907 AERJ. See also DeGolyer, Vol 29, p. 248. Works number was 30000 in January 1907.

Simple-expansion version of the Atchison, Topeka & Santa Fe tandem compound that used exactly the same boiler and firebox.

The PS & N (using Pittsburg without the "H") was a Western New York railroad that ran down into Pennsylvania.

The engine had a relatively short career before being scrapped in April 1930.

Specifications by Steve Llanso of Sweat House Media
Locobase ID5365
RailroadPittsburg, Shawmut & Northern
Number in Class1
Road Numbers98
Number Built1
BuilderBurnham, Williams & Co
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)19.75 / 6.02
Engine Wheelbase (ft / m)35.92 / 10.95
Ratio of driving wheelbase to overall engine wheebase 0.55
Overall Wheelbase (engine & tender) (ft / m)67.37 / 20.53
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)235,000 / 106,594
Engine Weight (lbs / kg)288,000 / 130,635
Tender Loaded Weight (lbs / kg)162,000 / 73,482
Total Engine and Tender Weight (lbs / kg)450,000 / 204,117
Tender Water Capacity (gals / ML)8500 / 32.20
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)14 / 12.70
Minimum weight of rail (calculated) (lb/yd / kg/m)78 / 39
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)57 / 1448
Boiler Pressure (psi / kPa)210 / 14.50
High Pressure Cylinders (dia x stroke) (in / mm)28" x 32" / 711x813
Tractive Effort (lbs / kg)78,565 / 35636.53
Factor of Adhesion (Weight on Drivers/Tractive Effort) 2.99
Heating Ability
Firebox Area (sq ft / m2)210 / 19.52
Grate Area (sq ft / m2)58.50 / 5.44
Evaporative Heating Surface (sq ft / m2)4796 / 445.72
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)4796 / 445.72
Evaporative Heating Surface/Cylinder Volume210.30
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation12,285
Same as above plus superheater percentage12,285
Same as above but substitute firebox area for grate area44,100
Power L15114
Power MT239.88