Alabama & Vicksburg 4-6-0 "Ten-wheeler" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class D (Locobase 6081)

Data from the 1926 Alabama & Vicksburg locomotive diagram book supplied in March 2004 by Allen Stanley from his extensive Raildata collection. See also DeGolyer, Volume 28, p. 148; Works numbers were 27011, 27055 in December 1905; 29328, 29346 in October 1906; 30003-30004, 30022 in January 1907; 30075 in May; 32099-32100 in October; and 35954-35955 in January 1911.

This is the Alabama & Vicksburg freight Ten-wheeler class equivalent to the Vicksburg, Shreveport & Pacific's D1s and the New Orleans & North Eastern A-3. The spec sheet for the 450-451 specified a change in the whistle: "Omit chime whistle and use whistle of coarser sound" than on earlier engines.

Only 5 of this group were superheated; the D1 entry (Locobase 6080) shows the result.

The rest were saturated-steam at least until 1926. Three -- 443, 445-446 -- were sold to the Louisiana & NorthWestern in March 1922 as 29-31. Illinois Central took 6 of the others, 3 of which went to the Yazoo & Mississippi Valley.

Specifications by Steve Llanso of Sweat House Media
Locobase ID6081
RailroadAlabama & Vicksburg
Number in Class12
Road Numbers442-453
Number Built12
BuilderBurnham, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft)13.50
Engine Wheelbase (ft)23.83
Ratio of driving wheelbase to overall engine wheebase 0.57
Overall Wheelbase (engine & tender) (ft)56.42
Axle Loading (Maximum Weight per Axle) (lbs)
Weight on Drivers (lbs)121,000
Engine Weight (lbs)145,000
Tender Loaded Weight (lbs)113,900
Total Engine and Tender Weight (lbs)258,900
Tender Water Capacity (gals)5500
Tender Fuel Capacity (oil/coal) (gals/tons)11
Minimum weight of rail (calculated) (lb/yd)67
Geometry Relating to Tractive Effort
Driver Diameter (in)58
Boiler Pressure (psi)200
High Pressure Cylinders (dia x stroke) (in)19" x 26"
Tractive Effort (lbs)27,511
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.40
Heating Ability
Firebox Area (sq ft)154.20
Grate Area (sq ft)31.50
Evaporative Heating Surface (sq ft)2172
Superheating Surface (sq ft)
Combined Heating Surface (sq ft)2172
Evaporative Heating Surface/Cylinder Volume254.57
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation6300
Same as above plus superheater percentage6300
Same as above but substitute firebox area for grate area30,840
Power L16669
Power MT364.53

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