Chesapeake & Ohio 0-10-0 Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class C-12 (Locobase 12634)

Data from C&O 9-1936 Locomotive Diagrams supplied in May 2005 by Allen Stanley from his extensive Raildata collection. Works numbers were 59980-59989 in January 1919 and 62197-62201 in February 1921.

These enormous switchers came to the C&O in two batches: 130-139 in 1919, 140-144 in 1921. The only difference between the two was the coal capacity of the tender, which came to 15 tons in the later tenders.

They were well-suited to the job of assembling the long coal trains that would be hauled by the big articulateds in which the railroad specialized. The last wasn't retired until 1956.

Specifications by Steve Llanso of Sweat House Media
Locobase ID12634
RailroadChesapeake & Ohio (C&O)
Number in Class15
Road Numbers50-64/130-144
Number Built15
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase19'
Engine Wheelbase19'
Ratio of driving wheelbase to overall engine wheebase1
Overall Wheelbase (engine & tender)60.27'
Axle Loading (Maximum Weight per Axle)59400 lbs
Weight on Drivers295000 lbs
Engine Weight295000 lbs
Tender Light Weight193000 lbs
Total Engine and Tender Weight488000 lbs
Tender Water Capacity10000 gals
Tender Fuel Capacity (oil/coal)20 tons
Minimum weight of rail (calculated)98 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter51"
Boiler Pressure185 psi
Cylinders (dia x stroke)27" x 28"
Tractive Effort62937 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.69
Heating Ability
Firebox Area256 sq. ft
Grate Area72.80 sq. ft
Evaporative Heating Surface3715 sq. ft
Superheating Surface545 sq. ft
Combined Heating Surface4260 sq. ft
Evaporative Heating Surface/Cylinder Volume200.22
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation13468
Same as above plus superheater percentage15219
Same as above but substitute firebox area for grate area53517
Power L18390
Power MT313.50


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.