Conway Company 2-4-2 "Columbian" Locomotives in the USA


Class Details by Steve Llanso of Sweat House Media

Class 1 (Locobase 12991)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Vol 29, p. 138,. Works number was 30449 in March 1907.

Locobase isn't sure if the Conway Company owned the Berlin Mills Railway, but the use of a double-ended saddle tank was typical of that line. Conway later sold out to Brown Company.

Principal Dimensions by Steve Llanso of Middle Run Media

Class1
Locobase ID12991
RailroadConway Company
CountryUSA
Whyte2-4-2ST
Number in Class1
Road Numbers1
GaugeStd
Number Built1
BuilderBurnham, Williams & Co
Year1906
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 7.50 / 2.29
Engine Wheelbase (ft / m)24.17 / 7.37
Ratio of driving wheelbase to overall engine wheelbase 0.31
Overall Wheelbase (engine & tender) (ft / m)24.17 / 7.37
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)70,000 / 31,752
Engine Weight (lbs / kg)105,000 / 47,627
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)105,000
Tender Water Capacity (gals / ML)1500 / 5.68
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)58 / 29
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)48 / 1219
Boiler Pressure (psi / kPa)160 / 11
High Pressure Cylinders (dia x stroke) (in / mm)15" x 24" / 381x610
Tractive Effort (lbs / kg)15,300 / 6939.97
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.58
Heating Ability
Tubes (number - dia) (in / mm)145 - 2" / 51
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)12 / 3.66
Firebox Area (sq ft / m2)90.80 / 8.44
Grate Area (sq ft / m2)15 / 1.39
Evaporative Heating Surface (sq ft / m2)996 / 92.57
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)996 / 92.57
Evaporative Heating Surface/Cylinder Volume202.85
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2400
Same as above plus superheater percentage2400
Same as above but substitute firebox area for grate area14,528
Power L13780
Power MT238.10

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