Blount-Decker Lumber Company 2-6-2 "Prairie" Locomotives of the USA


Class Details by Steve Llanso of Sweat House Media

Class 3 (Locobase 14322)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 53 p. 17. See the Texas Forestry Museum Sawmill database's entry on the B-D mill at http://www.treetexas.com/sawmilldb/display.asp?alpha=CK&num=11. Works number was 44501 in December 1916.

B-D was formed by E M Decker and E A Blount to operate a sawmill in Cherokee County north of Alto, Texas (southeast of Dallas, north of Houston). From 1908 to 1922, the mill processsed cut and finished pine, gum, hickory, and white and red oak. The small logging Prairie served the 8-mile (12.9-km), 35 lb/yard (17.5 kg/metre) tram road. In 1917 the company was reported to have 125,000,000 feet of timber available for harvest. At the rate of 75,000 feet a day, the reserve would be depleted in 5 2/3 years.

Specifications by Steve Llanso of Sweat House Media
Class3
Locobase ID14322
RailroadBlount-Decker Lumber Company
CountryUSA
Whyte2-6-2
Number in Class1
Road Numbers3
GaugeStd
Number Built1
BuilderBaldwin
Year1916
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase 9.17'
Engine Wheelbase23.75'
Ratio of driving wheelbase to overall engine wheebase 0.39
Overall Wheelbase (engine & tender)45.56'
Axle Loading (Maximum Weight per Axle)
Weight on Drivers70200 lbs
Engine Weight94000 lbs
Tender Light Weight60000 lbs
Total Engine and Tender Weight154000 lbs
Tender Water Capacity3000 gals
Tender Fuel Capacity (oil/coal)6 tons
Minimum weight of rail (calculated)39 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter44"
Boiler Pressure180 psi
Cylinders (dia x stroke)15" x 24"
Tractive Effort18777 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.74
Heating Ability
Firebox Area86 sq. ft
Grate Area14.10 sq. ft
Evaporative Heating Surface1074 sq. ft
Superheating Surface
Combined Heating Surface1074 sq. ft
Evaporative Heating Surface/Cylinder Volume218.79
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2538
Same as above plus superheater percentage2538
Same as above but substitute firebox area for grate area15480
Power L14044
Power MT381.00


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