Columbus, Hocking Valley & Toledo 2-6-0 "Mogul" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class 7 / 156 / M-16 (Locobase 7244)

Data from the SA&AP 6 - 1917 Locomotive Diagram book supplied in May 2005 by Allen Stanley from his extensive Raildata collection. (See Locobase 7235 for a description of this SouthEast Texas railroad.) Works numbers were 1372-1375 in October 1892, 1451 in April 1893, 1489-1490 in November

Like the Rome-built Moguls that were built in the same year to very nearly identical specs,

In their second careers, these 2-6-0s came onto the SA & AP years after their first service with the Hocking Valley. 156-162 arrived in 1910, 165-166 a year later. Seven survived to be renumbered as Texas & New Orleans engines in the Southern Pacific systems.

Specifications by Steve Llanso of Sweat House Media
Class7 / 156 / M-16
Locobase ID7244
RailroadColumbus, Hocking Valley & Toledo
Number in Class7
Road Numbers156-162, 165-166 / 488-94
Number Built7
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft)15.42
Engine Wheelbase (ft)23.42
Ratio of driving wheelbase to overall engine wheebase 0.66
Overall Wheelbase (engine & tender) (ft)54.37
Axle Loading (Maximum Weight per Axle) (lbs)
Weight on Drivers (lbs)101,850
Engine Weight (lbs)119,670
Tender Loaded Weight (lbs)102,920
Total Engine and Tender Weight (lbs)222,590
Tender Water Capacity (gals)3800
Tender Fuel Capacity (oil/coal) (gals/tons)1430
Minimum weight of rail (calculated) (lb/yd)57
Geometry Relating to Tractive Effort
Driver Diameter (in)55
Boiler Pressure (psi)150
High Pressure Cylinders (dia x stroke) (in)19" x 24"
Tractive Effort (lbs)20,085
Factor of Adhesion (Weight on Drivers/Tractive Effort) 5.07
Heating Ability
Firebox Area (sq ft)134
Grate Area (sq ft)18
Evaporative Heating Surface (sq ft)1532
Superheating Surface (sq ft)
Combined Heating Surface (sq ft)1532
Evaporative Heating Surface/Cylinder Volume194.52
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2700
Same as above plus superheater percentage2700
Same as above but substitute firebox area for grate area20,100
Power L13844
Power MT249.62

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.