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 ID15007
RailroadMonongahela Connecting
Number in Class3
Road Numbers600-602
Number Built3
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase14'
Engine Wheelbase14'
Ratio of driving wheelbase to overall engine wheebase1
Overall Wheelbase (engine & tender)44'
Axle Loading (Maximum Weight per Axle)
Weight on Drivers195000 lbs
Engine Weight195000 lbs
Tender Light Weight114000 lbs
Total Engine and Tender Weight309000 lbs
Tender Water Capacity5800 gals
Tender Fuel Capacity (oil/coal)8 tons
Minimum weight of rail (calculated)81 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter50"
Boiler Pressure185 psi
Cylinders (dia x stroke)23" x 28"
Tractive Effort46584 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.19
Heating Ability
Firebox Area192 sq. ft
Grate Area42 sq. ft
Evaporative Heating Surface2204 sq. ft
Superheating Surface470 sq. ft
Combined Heating Surface2674 sq. ft
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 area41914
Power L18466
Power MT382.86

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