Pittsburgh, Cincinnati, Chicago & St Louis 2-4-0 "Porter" Locomotives in the USA

Class Details by Steve Llanso of Sweat House Media

Class 2 (Locobase 12295)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 21, p.254. Works number was 16240 in October 1898. See also John H White, The American Railroad Passenger Car, Volume 2 (Baltimore, MD: Johns Hopkins University Press, 1978), pp. 585-587

Locobase 12237 outlines the history of this very short-lived type - the steam coach (steam rail motor in England) in which the front section held the vertical boiler and the running gear underneath while the after section held passengers. Like the two others delivered by Baldwin (see also Locobase 12269), this Vauclain compound proved a failure on the Pan Handle Route and was quickly sold to the Cincinnati, Lebanon & Northern.

Principal Dimensions by Steve Llanso of Middle Run Media

Locobase ID12295
RailroadPittsburgh, Cincinnati, Chicago & St Louis
Number in Class1
Road Numbers2
Number Built1
BuilderBurnham, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 7.50 / 2.29
Engine Wheelbase (ft / m)48.50 / 14.78
Ratio of driving wheelbase to overall engine wheelbase 0.15
Overall Wheelbase (engine & tender) (ft / m)48.50 / 14.78
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)57,000 / 25,855
Engine Weight (lbs / kg)100,000 / 45,359
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)
Tender Water Capacity (gals / ML)1000 / 3.79
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)44 / 1118
Boiler Pressure (psi / kPa)140 / 9.70
High Pressure Cylinders (dia x stroke) (in / mm)9.5" x 18" / 241x457
Low Pressure Cylinders (dia x stroke) (in / mm)15" x 18" / 381x457
Tractive Effort (lbs / kg)6271 / 2844.48
Factor of Adhesion (Weight on Drivers/Tractive Effort) 9.09
Heating Ability
Tubes (number - dia) (in / mm)380 - 1.5" / 38
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m) 3.33 / 1.01
Firebox Area (sq ft / m2)46.77 / 4.35
Grate Area (sq ft / m2)15 / 1.39
Evaporative Heating Surface (sq ft / m2)535 / 49.72
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)535 / 49.72
Evaporative Heating Surface/Cylinder Volume361.87
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2100
Same as above plus superheater percentage2100
Same as above but substitute firebox area for grate area6548
Power L12144
Power MT

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