North Park Street Railway 0-4-2 Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class 1 (Locobase 11695)

Data from Baldwin Locomotive Works Specification for Engines, 1890, as digitized by the DeGolyer Library of Southern Methodist University Vol 16, p. 50. Works numbers were 10922 and 10935 May 1890..

This Grand Rapids, Mich street railway purchased these two steam dummies to service the line that had just opened. Like many street railways, the NPSR operated between the downtown and an amusement area it owned in more salubrious surroundings.

After the system was electrified in the late 1890s, the 1 went to Empire Lumber and the 2 was sold to H AS Batchelor & Company.

Specifications by Steve Llanso of Sweat House Media
Locobase ID11695
RailroadNorth Park Street Railway
Number in Class2
Road Numbers1-2
Number Built2
BuilderBurnham, Parry, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase 4.92'
Engine Wheelbase10.42'
Ratio of driving wheelbase to overall engine wheebase 0.47
Overall Wheelbase (engine & tender)10.42'
Axle Loading (Maximum Weight per Axle)
Weight on Drivers26000 lbs
Engine Weight35000 lbs
Tender Light Weight
Total Engine and Tender Weight
Tender Water Capacity400 gals
Tender Fuel Capacity (oil/coal)
Minimum weight of rail (calculated)22 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter35"
Boiler Pressure130 psi
Cylinders (dia x stroke)11" x 16"
Tractive Effort6112 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.25
Heating Ability
Firebox Area42 sq. ft
Grate Area 9.60 sq. ft
Evaporative Heating Surface300 sq. ft
Superheating Surface
Combined Heating Surface300 sq. ft
Evaporative Heating Surface/Cylinder Volume170.47
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1248
Same as above plus superheater percentage1248
Same as above but substitute firebox area for grate area5460
Power L12198
Power MT372.75

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