Chestnut Ridge Railway Company 2-6-0 "Mogul" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class 6 (Locobase 15298)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Vol 73, pp. 19+. See also a short history of the CRRR in an article from the 29 July 2001 Pocono Record and archived at Works number was 56725 in July 1923.

This powerful Mogul was bought by the New Jersey Zinc Company of Pennsylvania, a later owner of the CRRR. When the road was originally financed in the late 1800s, it supported white-brick making operation in Palmerton, Pa, which lies north of Allentown. Investors such as J.P. Morgan, Howard Gould, Chauncey Depew and John Jacob Astor bought 4,000 acres in Eldred Township to encourage development of both the brick-making business and to draw tourists to eastern Pennsylvania.

It all failed and in 1901 (or 1902) the railroad was reorganized to haul local passenger traffic at the rate of up to 200 passengers a day. Its line measured 12 miles long from Lehigh Gap to Kunkletown. NJZC bought the railroad in 1907 and its zinc-processing mill added revenue to the railroad.

Business was brisk and the NJZC bought this powerful Mogul to help with traffic. It was similar in size and power to an 0-6-0, but had the leading truck. Rolling on relatively hefty 80 lb/yard (40 kg/metre) rail, the 6 served the CRRR for twenty-three years before being retired in 1946.

Passenger service closed in 1935, but freight service continued at high levels (hauling 4 million tons in 1947-1948). It remained in service into the 21st century.

Specifications by Steve Llanso of Sweat House Media
Locobase ID15,298
RailroadChestnut Ridge Railway Company
Number in Class1
Road Numbers6
Number Built1
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft)11
Engine Wheelbase (ft)19.33
Ratio of driving wheelbase to overall engine wheebase 0.57
Overall Wheelbase (engine & tender) (ft)52.23
Axle Loading (Maximum Weight per Axle) (lbs)
Weight on Drivers (lbs)140,000
Engine Weight (lbs)156,500
Tender Loaded Weight (lbs)124,000
Total Engine and Tender Weight (lbs)280,500
Tender Water Capacity (gals)6000
Tender Fuel Capacity (oil/coal) (gals/tons)10
Minimum weight of rail (calculated) (lb/yd)78
Geometry Relating to Tractive Effort
Driver Diameter (in)51
Boiler Pressure (psi)185
High Pressure Cylinders (dia x stroke) (in)21" x 26"
Tractive Effort (lbs)35,354
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.96
Heating Ability
Firebox Area (sq ft)171
Grate Area (sq ft)75
Evaporative Heating Surface (sq ft)1920
Superheating Surface (sq ft)
Combined Heating Surface (sq ft)1920
Evaporative Heating Surface/Cylinder Volume184.21
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation13,875
Same as above plus superheater percentage13,875
Same as above but substitute firebox area for grate area31,635
Power L14187
Power MT197.80

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