Wisconsin Central 2-4-4 Locomotives in the USA

Class Details by Steve Llanso of Sweat House Media

Class 93 (Locobase 2099)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 13, p 146. Works numbers were 8261and 8266 in November 1886.

Although owned by the "Chicago & Great Western", according to the specifications page, this pair of suburban tanks operated in Wisconsin. In 1890, they were taken into the Northern Pacific and renumbered, but two years later they were redirected to the terminal railroad Chicago & Northern Pacific which became the Chicago Terminal & Transfer. At that point they fell into class B-2 and were numbered 4 & 5.

On the latter's absorption by the B & O as the Baltimore & Ohio Chicago Terminal in 1907, these were put in the R class until 5's retirement in 1913 and 4's departure in 1917.

Principal Dimensions by Steve Llanso of Sweat House Media

Locobase ID2099
RailroadWisconsin Central
Number in Class2
Road Numbers93-94/623-624
Number Built2
BuilderBurnham, Parry, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 7.50 / 2.29
Engine Wheelbase (ft / m)30.08 / 9.17
Ratio of driving wheelbase to overall engine wheelbase 0.25
Overall Wheelbase (engine & tender) (ft / m)30.08 / 9.17
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)60,000 / 27,216
Engine Weight (lbs / kg)104,000 / 47,174
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)104,000
Tender Water Capacity (gals / ML)1350 / 5.11
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)50 / 25
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)63 / 1600
Boiler Pressure (psi / kPa)130 / 9
High Pressure Cylinders (dia x stroke) (in / mm)17" x 24" / 432x610
Tractive Effort (lbs / kg)12,166 / 5518.41
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.93
Heating Ability
Tubes (number - dia) (in / mm)187 - 2" / 51
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)12 / 3.66
Firebox Area (sq ft / m2)109.60 / 10.19
Grate Area (sq ft / m2)17.10 / 1.59
Evaporative Heating Surface (sq ft / m2)1285 / 119.42
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1285 / 119.42
Evaporative Heating Surface/Cylinder Volume203.65
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2223
Same as above plus superheater percentage2223
Same as above but substitute firebox area for grate area14,248
Power L13965
Power MT291.38

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