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 Numbers13,350
Number Built1
BuilderBurnham, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft) 7.33
Engine Wheelbase (ft)24.58
Ratio of driving wheelbase to overall engine wheebase 0.30
Overall Wheelbase (engine & tender) (ft)45
Axle Loading (Maximum Weight per Axle) (lbs)
Weight on Drivers (lbs)83,100
Engine Weight (lbs)126,600
Tender Loaded Weight (lbs)78,400
Total Engine and Tender Weight (lbs)205,000
Tender Water Capacity (gals)3600
Tender Fuel Capacity (oil/coal) (gals/tons)
Minimum weight of rail (calculated) (lb/yd)69
Geometry Relating to Tractive Effort
Driver Diameter (in)84.25
Boiler Pressure (psi)200
High Pressure Cylinders (dia x stroke) (in)13" x 26"
Low Pressure Cylinders (dia x stroke) (in)22" x 26"
Tractive Effort (lbs)13,143
Factor of Adhesion (Weight on Drivers/Tractive Effort) 6.32
Heating Ability
Firebox Area (sq ft)128.30
Grate Area (sq ft)24.80
Evaporative Heating Surface (sq ft)1478
Superheating Surface (sq ft)
Combined Heating Surface (sq ft)1478
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 area25,660
Power L15203
Power MT276.07

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