Mount Hope Mineral 2-6-0 "Mogul" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class 4 (Locobase 14941)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Vol 65, pp. 111+. Works numbers were 53947 in November 1920.

Five years after the Empire Steel and Iron Company bought a smallish Consolidation (Locobase 14345) for its Mount Hope Mineral railway in New Jersey, it returned to Eddystone and bought a larger Mogul. The engine put more weight on three adhesive axles, had more cylinder volume, and slightly larger boiler and grate. Relatively heavy 70 and 80 lb/yard (35 and 40 kg/metre) rails ran on a tight profile that included 30 degree curves and 3% grades.

When the Mount Hope disposed of its locomotives in 1930, it sold the 4 to locomotive rebuilder/reseller Birmingham Rail & Locomotive. BR&L soon found a buyer in the nearby Middletown & Union, which renumbered it 5. In 1935, the M&U sold the 5 to Pittson, Pa's West Pittson Exeter north of Scranton. The 5 moved coal for the Scranton Illuminating Company's generating stations. It was scrapped in 1952.

Specifications by Steve Llanso of Sweat House Media
Locobase ID14,941
RailroadMount Hope Mineral
Number in Class1
Road Numbers4
Number Built1
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft)11.50
Engine Wheelbase (ft)19.75
Ratio of driving wheelbase to overall engine wheebase 0.58
Overall Wheelbase (engine & tender) (ft)49.60
Axle Loading (Maximum Weight per Axle) (lbs)
Weight on Drivers (lbs)144,500
Engine Weight (lbs)166,500
Tender Loaded Weight (lbs)83,500
Total Engine and Tender Weight (lbs)250,000
Tender Water Capacity (gals)4000
Tender Fuel Capacity (oil/coal) (gals/tons)6
Minimum weight of rail (calculated) (lb/yd)80
Geometry Relating to Tractive Effort
Driver Diameter (in)51
Boiler Pressure (psi)190
High Pressure Cylinders (dia x stroke) (in)20" x 26"
Tractive Effort (lbs)32,933
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.39
Heating Ability
Firebox Area (sq ft)177
Grate Area (sq ft)30.20
Evaporative Heating Surface (sq ft)1938
Superheating Surface (sq ft)
Combined Heating Surface (sq ft)1938
Evaporative Heating Surface/Cylinder Volume205.00
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation5738
Same as above plus superheater percentage5738
Same as above but substitute firebox area for grate area33,630
Power L14823
Power MT220.75

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