Baldwin 2-4-2 "Columbian" Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class Columbia (Locobase 368)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 18, p. 176. Built by Baldwin as an experiment. Works number was 13350 in April 1893.

Named in honor of the 1893 Columbian Exposition at Chicago, this was intended to be the prototype of a new type of express passenger engine. The 2-4-2 or "Columbia" wheel arrangement met with little success in the US because of its uneasy riding qualities. Most passenger locomotives of the time were 4-4-0-s, 4-6-0s or 4-4-2s.

In 1898, the Columbia was donated to Columbia University, where it was set up in the vault between Havemeyer Hall and the Engineering Building.

Specifications by Steve Llanso of Sweat House Media
Locobase ID368
Number in Class1
Road Numbers13350
Number Built1
BuilderBurnham, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase 7.33'
Engine Wheelbase24.58'
Ratio of driving wheelbase to overall engine wheebase 0.30
Overall Wheelbase (engine & tender)45'
Axle Loading (Maximum Weight per Axle)
Weight on Drivers83100 lbs
Engine Weight126600 lbs
Tender Light Weight78400 lbs
Total Engine and Tender Weight205000 lbs
Tender Water Capacity3600 gals
Tender Fuel Capacity (oil/coal)
Minimum weight of rail (calculated)69 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter84.25"
Boiler Pressure200 psi
High Pressure Cylinders (dia x stroke)13" x 26"
Low Pressure Cylinders (dia x stroke)22" x 26" (2)
Tractive Effort13143 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 6.32
Heating Ability
Firebox Area128.30 sq. ft
Grate Area24.80 sq. ft
Evaporative Heating Surface1478 sq. ft
Superheating Surface
Combined Heating Surface1478 sq. ft
Evaporative Heating Surface/Cylinder Volume370.03
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation4960
Same as above plus superheater percentage4960
Same as above but substitute firebox area for grate area25660
Power L15203
Power MT276.07

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