Blanchard & Twitchell 2-4-2 "Columbian" Locomotives of the USA


Class Details by Steve Llanso of Sweat House Media

Class Success (Locobase 12072)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Vol 18, p. 236,. Works number was 13610 in July 1893.

This was either a relatively large tank or a standard 4-4-0 with its auxiliary trucks relocated to allow easier movement in either direction. The railroad -- also known as the Success Pond Railroad -- was based in Mason, Maine, but remianed open for only 5 years. When the B & T closed in 1900, the 2 went to Buffalo Union Furnace Company of Buffalo, New York.

Specifications by Steve Llanso of Sweat House Media
ClassSuccess
Locobase ID12072
RailroadBlanchard & Twitchell
CountryUSA
Whyte2-4-2T
Number in Class1
Road Numbers2
GaugeStd
Number Built1
BuilderBurnham, Williams & Co
Year1893
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase 7.50'
Engine Wheelbase24.67'
Ratio of driving wheelbase to overall engine wheebase 0.30
Overall Wheelbase (engine & tender)24.67'
Axle Loading (Maximum Weight per Axle)
Weight on Drivers68000 lbs
Engine Weight100000 lbs
Tender Light Weight
Total Engine and Tender Weight100000 lbs
Tender Water Capacity1800 gals
Tender Fuel Capacity (oil/coal)
Minimum weight of rail (calculated)57 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter46"
Boiler Pressure140 psi
Cylinders (dia x stroke)17" x 24"
Tractive Effort17943 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.79
Heating Ability
Firebox Area104.60 sq. ft
Grate Area17.10 sq. ft
Evaporative Heating Surface1271 sq. ft
Superheating Surface
Combined Heating Surface1271 sq. ft
Evaporative Heating Surface/Cylinder Volume201.59
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2394
Same as above plus superheater percentage2394
Same as above but substitute firebox area for grate area14644
Power L13054
Power MT198.03


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