Central of New Jersey 4-4-0 "American" Locomotives in the USA

Class Details by Steve Llanso of Sweat House Media

Class Inspection engine (Locobase 12676)

Data from Baldwin Locomotive Works datacard as digitized by the DeGolyer Library of Southern Methodist University, Volume 25, p. 263. See also "More Recent Baldwin Locomotives," Daily Railway Age, Volume XXXV, No 25a (24 June 1903), pp. 1062-1063. Works number was 22132 in May 1903.

Like several other inspection engines, the 900 had a car body built by Wilmington, Delaware's Jackson & Sharp. Its boiler was set quite low to offer more room to the inspectors riding in the coach-like car body that straddled it. Anthracite coal burned in a long narrow grate reduced smoke. Its cylinder dimensions changed twice, first to 16"x 20", then to 15" x 20" (the latter in February 1920).

Principal Dimensions by Steve Llanso of Sweat House Media
ClassInspection engine
Locobase ID12,676
RailroadCentral of New Jersey
Number in Class1
Road Numbers900
Number Built1
BuilderBurnham, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 7.50 / 2.29
Engine Wheelbase (ft / m)22.50 / 6.86
Ratio of driving wheelbase to overall engine wheebase 0.33
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)64,000 / 29,030
Engine Weight (lbs / kg)98,000 / 44,452
Tender Loaded Weight (lbs / kg)82,000 / 37,195
Total Engine and Tender Weight (lbs / kg)180,000 / 81,647
Tender Water Capacity (gals / ML)3500 / 13.26
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)53 / 26.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)60 / 1524
Boiler Pressure (psi / kPa)200 / 13.80
High Pressure Cylinders (dia x stroke) (in / mm)17" x 20" / 432x508
Tractive Effort (lbs / kg)16,377 / 7428.49
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.91
Heating Ability
Firebox Area (sq ft / m2)88.30 / 8.21
Grate Area (sq ft / m2)24.70 / 2.30
Evaporative Heating Surface (sq ft / m2)999 / 92.84
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)999 / 92.84
Evaporative Heating Surface/Cylinder Volume190.13
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation4940
Same as above plus superheater percentage4940
Same as above but substitute firebox area for grate area17,660
Power L15483
Power MT377.75

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