Duluth, South Shore, & Atlantic 4-6-0 "Ten-wheeler" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class E (Locobase 1329)

Data from (http:/fp-www.wwnet.net/`dulong/dssa/locomot.thm) and from

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 31, p 111.

Passenger locomotives originally delivered with 64" drivers, but diameter was soon increased to 67". 500 pressed 180 lb and had a slightly lower TE. All sold for scrap in 1933.

Specifications by Steve Llanso of Sweat House Media
Locobase ID1329
RailroadDuluth, South Shore, & Atlantic
Number in Class4
Road Numbers500-503
Number Built4
BuilderBurnham, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft)14
Engine Wheelbase (ft)24.17
Ratio of driving wheelbase to overall engine wheebase 0.58
Overall Wheelbase (engine & tender) (ft)54.50
Axle Loading (Maximum Weight per Axle) (lbs)
Weight on Drivers (lbs)112,000
Engine Weight (lbs)145,000
Tender Loaded Weight (lbs)100,000
Total Engine and Tender Weight (lbs)245,000
Tender Water Capacity (gals)5000
Tender Fuel Capacity (oil/coal) (gals/tons)9
Minimum weight of rail (calculated) (lb/yd)62
Geometry Relating to Tractive Effort
Driver Diameter (in)64
Boiler Pressure (psi)190
High Pressure Cylinders (dia x stroke) (in)19" x 26"
Tractive Effort (lbs)23,685
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.73
Heating Ability
Firebox Area (sq ft)162
Grate Area (sq ft)28.30
Evaporative Heating Surface (sq ft)2294
Superheating Surface (sq ft)
Combined Heating Surface (sq ft)2294
Evaporative Heating Surface/Cylinder Volume268.87
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation5377
Same as above plus superheater percentage5377
Same as above but substitute firebox area for grate area30,780
Power L17373
Power MT435.39