Blacksher Company 2-8-0 "Consolidation" Locomotives of the USA


Class Details by Steve Llanso of Sweat House Media

Class Agnes (Locobase 12352)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Vol 22, p. 114. Works number was 16854 in June 1899.

The Blacksher Company operated a private logging railroad system of 35 miles in Georgia.


Class David W (Locobase 12584)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Vol 24, p. 132. Works number was 20304 in April 1902.

Locobase 12352 shows the first of the Consolidations bought by this Georgia lumber company. Three years later, Blacksher returned for a slightly larger locomotive with the same power dimensions, but a bigger boiler with shorter tubes.

Specifications by Steve Llanso of Sweat House Media
ClassAgnesDavid W
Locobase ID12352 12584
RailroadBlacksher CompanyBlacksher Company
CountryUSAUSA
Whyte2-8-02-8-0
Number in Class11
Road Numbers24
GaugeStdStd
Number Built11
BuilderBurnham, Williams & CoBurnham, Williams & Co
Year18991902
Valve GearStephensonStephenson
Locomotive Length and Weight
Driver Wheelbase12.17'11'
Engine Wheelbase19'17.67'
Ratio of driving wheelbase to overall engine wheebase 0.64 0.62
Overall Wheelbase (engine & tender)39.99'
Axle Loading (Maximum Weight per Axle)
Weight on Drivers54000 lbs60000 lbs
Engine Weight62000 lbs70000 lbs
Tender Light Weight47000 lbs42000 lbs
Total Engine and Tender Weight109000 lbs112000 lbs
Tender Water Capacity2000 gals2000 gals
Tender Fuel Capacity (oil/coal)
Minimum weight of rail (calculated)23 lb/yard25 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter40"40"
Boiler Pressure160 psi150 psi
Cylinders (dia x stroke)14" x 20"14" x 20"
Tractive Effort13328 lbs12495 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.05 4.80
Heating Ability
Firebox Area74.60 sq. ft76.25 sq. ft
Grate Area12.68 sq. ft14.50 sq. ft
Evaporative Heating Surface685 sq. ft777 sq. ft
Superheating Surface
Combined Heating Surface685 sq. ft777 sq. ft
Evaporative Heating Surface/Cylinder Volume192.23218.05
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation20292175
Same as above plus superheater percentage20292175
Same as above but substitute firebox area for grate area1193611438
Power L131673250
Power MT517.19477.67


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