Denver & Berkeley Park Rapid Transit 0-4-2 Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class Berkeley (Locobase 11595)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 15, p. 40. Works number was 9895 in March 1889.

This street railway opened in 1888 to provide "noiseless" transport from Berkeley Lake in the newly developing Berkeley Park residential area along a 3 1/4-mile right-of-way to Gallup Ave in downtown Denver. By the time this steam dummy was delivered, traffic had grown to 3,000 passengers.

Specifications by Steve Llanso of Sweat House Media
Locobase ID11595
RailroadDenver & Berkeley Park Rapid Transit
Number in Class1
Road Numbers3
Number Built1
BuilderBurnham, Parry, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase 4.50'
Engine Wheelbase11.67'
Ratio of driving wheelbase to overall engine wheebase 0.39
Overall Wheelbase (engine & tender)11.67'
Axle Loading (Maximum Weight per Axle)14490 lbs
Weight on Drivers26690 lbs
Engine Weight34180 lbs
Tender Light Weight
Total Engine and Tender Weight
Tender Water Capacity450 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) 4.37
Heating Ability
Firebox Area
Grate Area 9.60 sq. ft
Evaporative Heating Surface
Superheating Surface
Combined Heating Surface0
Evaporative Heating Surface/Cylinder Volume
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 area0
Power L10
Power MT0

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