South Florida 4-6-0 "Ten-wheeler" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class 10 (Locobase 16258)

Data from DeGolyer, Volume 11, p. 254. Works numbers were 6978, 6991, in October 1883 and 7047-7048 in November.

A quartet of wood-burning Ten-wheelers constituted a large class of locomotives on this central Florida skinny gauge. 11 suffered a premature demise in an SF roundhouse fire on 4 January 1886. Unlike earlier SF engines, the other three were big enough to be converted to the standard gauge in 1891.

The 10 later went to the Savannah & Statesboro. By 1906 it served the logging industry on the Porter-Wadley Lumber Company (sold, apparently, through a Baldwin extra order on 15 February 1906) and later on the Alexander Lumber Company's rails as their #4. 12 had a second career with the Charleston Mining and Manufacturing Company. 13's sale through a Baldwin extra order on 1 March 1905 was concluded with the Dutton Phosphate Company of Clark, Fla.

Specifications by Steve Llanso of Sweat House Media
Locobase ID16,258
RailroadSouth Florida
Number in Class4
Road Numbers10-13
Number Built4
BuilderBurnham, Parry, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft)11.67
Engine Wheelbase (ft)20.50
Ratio of driving wheelbase to overall engine wheebase 0.57
Overall Wheelbase (engine & tender) (ft)35.12
Axle Loading (Maximum Weight per Axle) (lbs)
Weight on Drivers (lbs)
Engine Weight (lbs)58,000
Tender Loaded Weight (lbs)27,600
Total Engine and Tender Weight (lbs)85,600
Tender Water Capacity (gals)1200
Tender Fuel Capacity (oil/coal) (gals/tons)
Minimum weight of rail (calculated) (lb/yd)
Geometry Relating to Tractive Effort
Driver Diameter (in)45
Boiler Pressure (psi)135
High Pressure Cylinders (dia x stroke) (in)14" x 20"
Tractive Effort (lbs)9996
Factor of Adhesion (Weight on Drivers/Tractive Effort)
Heating Ability
Firebox Area (sq ft)
Grate Area (sq ft)12.50
Evaporative Heating Surface (sq ft)
Superheating Surface (sq ft)
Combined Heating Surface (sq ft)
Evaporative Heating Surface/Cylinder Volume
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1688
Same as above plus superheater percentage1688
Same as above but substitute firebox area for grate area
Power L1
Power MT

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