Roaring Fork 2-8-0 "Consolidation" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class 102 (Locobase 11177)

Data from Interstate diagram published on (visited 26 Dec 2004)., supplemented by DeGolyer, Vol 41, pp. 166+. Works number was 36275 in March 1911.

This was very similar to the Interstate Consolidations shown in Locobase 6440 and joined them in 1920. It differed from them in that the Interstates had Southern valve gear.

The RF operated out of Blackwood, Va, connecting Blackwood and the Roaring Fork Mine.

Specifications by Steve Llanso of Sweat House Media
Locobase ID11177
RailroadRoaring Fork
Number in Class1
Road Numbers102
Number Built1
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase14.25'
Engine Wheelbase22.33'
Ratio of driving wheelbase to overall engine wheebase 0.64
Overall Wheelbase (engine & tender)52.96'
Axle Loading (Maximum Weight per Axle)
Weight on Drivers128900 lbs
Engine Weight145500 lbs
Tender Light Weight130000 lbs
Total Engine and Tender Weight275500 lbs
Tender Water Capacity6500 gals
Tender Fuel Capacity (oil/coal)9 tons
Minimum weight of rail (calculated)54 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter50"
Boiler Pressure180 psi
Cylinders (dia x stroke)21" x 26"
Tractive Effort35086 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.67
Heating Ability
Firebox Area160 sq. ft
Grate Area33.20 sq. ft
Evaporative Heating Surface2005 sq. ft
Superheating Surface
Combined Heating Surface2005 sq. ft
Evaporative Heating Surface/Cylinder Volume192.37
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation5976
Same as above plus superheater percentage5976
Same as above but substitute firebox area for grate area28800
Power L14037
Power MT276.18

If you have any railroad data such as diagram books, rail station plans or anything else that you would be willing to share, please contact us.