Altoona & Phillipsburg Connecting 4-4-0 "American" Locomotives in the USA

Class Details by Steve Llanso of Sweat House Media

Class 1 (Locobase 12081)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Vol 19, p. 30. Works number was 13804 in October 1893..

Medium-sized, well-traveled Vauclain compound Eight-wheeler with a small grate that soon was rebuilt with 18" x 24" simple-expansion cylinders. In 1902, #1 went to the Pittsburgh, Johnstown, Ebensburg & Eastern, the Buffalo & Susquehanna in 1903, where it operated for 14 years before being disposed of to the locomotive rebuilder/reseller Southern Iron & Equipment, which sold it to the Bonlee & Western.

In 1924, the B & W sold it to Georgia Car & Locomotive, which scrapped it in October 1924.

Principal Dimensions by Steve Llanso of Sweat House Media
Locobase ID12,081
RailroadAltoona & Phillipsburg Connecting
Number in Class1
Road Numbers1
Number Built1
BuilderBurnham, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m) 8.50 / 2.59
Engine Wheelbase (ft / m)23.33 / 7.11
Ratio of driving wheelbase to overall engine wheebase 0.36
Overall Wheelbase (engine & tender) (ft / m)46.50 / 14.17
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)66,000 / 29,937
Engine Weight (lbs / kg)105,000 / 47,627
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)
Tender Water Capacity (gals / ML)3600 / 13.64
Tender Fuel Capacity (oil/coal) (gals/tons / ML/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)55 / 27.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)68 / 1727
Boiler Pressure (psi / kPa)180 / 12.40
High Pressure Cylinders (dia x stroke) (in / mm)12" x 24" / 305x610
Low Pressure Cylinders (dia x stroke) (in / mm)20" x 24" / 508x610
Tractive Effort (lbs / kg)11,435 / 5186.83
Factor of Adhesion (Weight on Drivers/Tractive Effort) 5.77
Heating Ability
Firebox Area (sq ft / m2)137.30 / 12.76
Grate Area (sq ft / m2)17 / 1.58
Evaporative Heating Surface (sq ft / m2)1550 / 144.05
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1550 / 144.05
Evaporative Heating Surface/Cylinder Volume493.38
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation3060
Same as above plus superheater percentage3060
Same as above but substitute firebox area for grate area24,714
Power L15228
Power MT349.27

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