Monongahela Connecting 0-8-0 Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class 600 (Locobase 15007)

Data from Roy V Wright (Ed.) 1922 Locomotive Cyclopedia of American Practice, Sixth Edition (New York: Simmons-Boardman Publishing Company, 1922), p. 1000. See also "Switching Locomotives for the Monongahela Connecting RR", Railway and Engineering News, Vol 53 (30 August 1913), p. 830.

This railroad was a subsidiary of the Jones & Laughlin Steel Company and operated in Pittsburgh. At the time of their delivery, these three 8-coupled switchers were the largest locomotives yet built by H K Porter (also of Pittsburgh). The Security sectional brick arch support included arch tubes that contributed to the direct heating surface area.

Specifications by Steve Llanso of Sweat House Media
Locobase ID15,007
RailroadMonongahela Connecting
Number in Class3
Road Numbers600-602
Number Built3
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft)14
Engine Wheelbase (ft)14
Ratio of driving wheelbase to overall engine wheebase1
Overall Wheelbase (engine & tender) (ft)44
Axle Loading (Maximum Weight per Axle) (lbs)
Weight on Drivers (lbs)195,000
Engine Weight (lbs)195,000
Tender Loaded Weight (lbs)114,000
Total Engine and Tender Weight (lbs)309,000
Tender Water Capacity (gals)5800
Tender Fuel Capacity (oil/coal) (gals/tons)8
Minimum weight of rail (calculated) (lb/yd)81
Geometry Relating to Tractive Effort
Driver Diameter (in)50
Boiler Pressure (psi)185
High Pressure Cylinders (dia x stroke) (in)23" x 28"
Tractive Effort (lbs)46,584
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.19
Heating Ability
Firebox Area (sq ft)192
Grate Area (sq ft)42
Evaporative Heating Surface (sq ft)2204
Superheating Surface (sq ft)470
Combined Heating Surface (sq ft)2674
Evaporative Heating Surface/Cylinder Volume163.69
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation7770
Same as above plus superheater percentage9169
Same as above but substitute firebox area for grate area41,914
Power L18466
Power MT382.86

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