Tennessee Central 4-6-0 "Ten-wheeler" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class 504 (Locobase 7346)

Data from TC 1941ca Locomotive Diagrams and Miscellaneous Data supplied in May 2005 by Allen Stanley from his extensive Raildata collection.

Locobase knows that these Ten-wheelers were delivered as saturated-steam engines in 1903. At some later date they were superheated as shown here. A note in the diagram says that the superheater area includes the arch tube area, a calculation Locobase hasn't seen before.

Specifications by Steve Llanso of Sweat House Media
Locobase ID7346
RailroadTennessee Central
Number in Class3
Road Numbers504-506
Number Built3
BuilderAlco-Rhode Island
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase14.50'
Engine Wheelbase25.67'
Ratio of driving wheelbase to overall engine wheebase 0.56
Overall Wheelbase (engine & tender)58.02'
Axle Loading (Maximum Weight per Axle)
Weight on Drivers126500 lbs
Engine Weight172500 lbs
Tender Light Weight107200 lbs
Total Engine and Tender Weight279700 lbs
Tender Water Capacity7000 gals
Tender Fuel Capacity (oil/coal)10 tons
Minimum weight of rail (calculated)70 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter63"
Boiler Pressure180 psi
Cylinders (dia x stroke)20" x 26"
Tractive Effort25257 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 5.01
Heating Ability
Firebox Area157 sq. ft
Grate Area32.15 sq. ft
Evaporative Heating Surface2094 sq. ft
Superheating Surface456 sq. ft
Combined Heating Surface2550 sq. ft
Evaporative Heating Surface/Cylinder Volume221.50
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation5787
Same as above plus superheater percentage6829
Same as above but substitute firebox area for grate area33347
Power L113960
Power MT729.88

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