Surry, Sussex & Southampton 4-6-0 "Ten-wheeler" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class 16 (Locobase 14349)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Vol 53, pp. 371+. Works number was 45714 in June 1917.

A narrow-gauge, mixed-train Ten-wheeler, the 16 unusually operated its slide valves with Southern valve gear. It was one of the smallest locomotives to use the mechanism. Track conditions included a roadbed with oak ties spaced 18 for every 30 feet (about 21"/53.3 cm apart) and bearing rail weighing anywhere from 25-40 lb/yard (12.5-20 kg/metre). As usual with logging engines, the specs included several different references to stronger components, including the requirement that the spring plates be cast 1/16" (1.6 mm) thicker "than standard for this type of locomotive.".

After the SS&S closed its southeastern Virginia business in 1930, locomotive rebuilder/reseller Southern Iron & Equipment bought the 16 and soon sold it to International Agricultural Company.

Specifications by Steve Llanso of Sweat House Media
Locobase ID14,349
RailroadSurry, Sussex & Southampton
Number in Class1
Road Numbers16
Number Built1
Valve GearSouthern
Locomotive Length and Weight
Driver Wheelbase (ft)10.92
Engine Wheelbase (ft)19.42
Ratio of driving wheelbase to overall engine wheebase 0.56
Overall Wheelbase (engine & tender) (ft)41.54
Axle Loading (Maximum Weight per Axle) (lbs)
Weight on Drivers (lbs)55,000
Engine Weight (lbs)70,000
Tender Loaded Weight (lbs)36,000
Total Engine and Tender Weight (lbs)106,000
Tender Water Capacity (gals)1800
Tender Fuel Capacity (oil/coal) (gals/tons)4
Minimum weight of rail (calculated) (lb/yd)31
Geometry Relating to Tractive Effort
Driver Diameter (in)45
Boiler Pressure (psi)175
High Pressure Cylinders (dia x stroke) (in)14" x 20"
Tractive Effort (lbs)12,958
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.24
Heating Ability
Firebox Area (sq ft)71
Grate Area (sq ft)11.60
Evaporative Heating Surface (sq ft)804
Superheating Surface (sq ft)
Combined Heating Surface (sq ft)804
Evaporative Heating Surface/Cylinder Volume225.63
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2030
Same as above plus superheater percentage2030
Same as above but substitute firebox area for grate area12,425
Power L14269
Power MT513.36

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