Fairfield Traction 2-4-0 "Porter" Locomotives in the USA

Class Details by Steve Llanso of Sweat House Media

Class 1 (Locobase 12474)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 23, p. 205. Works number was 18627 in January 1901.

Locobase 12269 describes the failure of the Baldwin steam railcar design and its rapid conversion to a switcher. The need for traction on this street railway remained, however, and the company bought this small saddle-tank engine. Surviving Fairfield Traction's reorganization as the Lancaster Traction & Power company, the 1 was sold to the locomotive rebuilder/reseller Southern Iron & Equipment in 1907.

Principal Dimensions by Steve Llanso of Sweat House Media
Locobase ID12,474
RailroadFairfield Traction
Number in Class1
Road Numbers1
Number Built1
BuilderBurnham, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 7.50 / 2.29
Engine Wheelbase (ft / m)13.83 / 4.22
Ratio of driving wheelbase to overall engine wheebase 0.54
Overall Wheelbase (engine & tender) (ft / m)13.83 / 4.22
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)73,500 / 33,339
Engine Weight (lbs / kg)78,500 / 35,607
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)78,500
Tender Water Capacity (gals / ML)1000 / 3.79
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)42 / 1067
Boiler Pressure (psi / kPa)180 / 12.40
High Pressure Cylinders (dia x stroke) (in / mm)9.5" x 18" / 241x457
Low Pressure Cylinders (dia x stroke) (in / mm)16" x 18" / 406x457
Tractive Effort (lbs / kg)8751 / 3969.39
Factor of Adhesion (Weight on Drivers/Tractive Effort) 8.40
Heating Ability
Firebox Area (sq ft / m2)49 / 4.55
Grate Area (sq ft / m2)15 / 1.39
Evaporative Heating Surface (sq ft / m2)676 / 62.83
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)676 / 62.83
Evaporative Heating Surface/Cylinder Volume457.77
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2700
Same as above plus superheater percentage2700
Same as above but substitute firebox area for grate area8820
Power L12770
Power MT

All material Copyright © SteamLocomotive.com
Wes Barris