Lancaster, Oxford & Southern 4-4-0 "American" Locomotives in the USA

Class Details by Steve Llanso of Sweat House Media

Class 5 (Locobase 12800)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 27, p.304. See George Woodman Hilton, American narrow gauge railroads (Stanford University Press, 1990), pp.488-490. Works numbers were 26002-26003 in July 1905.

This narrow-gauge line operated near Peach Bottom, Penna. It was originally projected to form part of the Peach Bottom Railway, which was to extend from Orbisonia on the East Broad Top all the way to the Delaware River. The Eastern Division actually ran only about 20 miles from Peach Bottom on the Susquehanna to Oxford.

This pair of Eight-wheelers operated the passenger service on the LO & S until its closing in 1919. The 6 was scrapped in 1919 and the 5 was sold in 1920.

Principal Dimensions by Steve Llanso of Sweat House Media

Locobase ID12800
RailroadLancaster, Oxford & Southern
Number in Class2
Road Numbers5-6
Number Built2
BuilderBurnham, Parry, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 7.83 / 2.39
Engine Wheelbase (ft / m)18.92 / 5.77
Ratio of driving wheelbase to overall engine wheelbase 0.41
Overall Wheelbase (engine & tender) (ft / m)37.79 / 11.52
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)30,000 / 13,608
Engine Weight (lbs / kg)45,000 / 20,412
Tender Loaded Weight (lbs / kg)38,000 / 17,237
Total Engine and Tender Weight (lbs / kg)83,000 / 37,649
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)25 / 12.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)45 / 1143
Boiler Pressure (psi / kPa)160 / 11
High Pressure Cylinders (dia x stroke) (in / mm)12" x 18" / 305x457
Tractive Effort (lbs / kg)7834 / 3553.45
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.83
Heating Ability
Tubes (number - dia) (in / mm)131 - 1.75" / 44
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m) 8.81 / 2.69
Firebox Area (sq ft / m2)62.40 / 5.80
Grate Area (sq ft / m2) 8.97 / 0.83
Evaporative Heating Surface (sq ft / m2)586 / 54.46
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)586 / 54.46
Evaporative Heating Surface/Cylinder Volume248.31
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1435
Same as above plus superheater percentage1435
Same as above but substitute firebox area for grate area9984
Power L14566
Power MT671.09

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Wes Barris