Data from Baldwin Locomotive Works, Record of Recent Construction ((1903), No. 39, p.280-281. See also DeGolyer, Volume 25, p. 19. Works number was 20919 in October 1902.
This 38-mile (61 km) narrow-gauge line connected Fredericksburg and Orange in northern Virginia's Spotsylvania County. Established before the Civil War, the PF&P maintained its narrow-gauge right-of-way until 1926.
This little American moved to the Orange & Fredericksburg when the original railroad widened its gauge. A year later the O&F sold the engine to the Virginia Central in November 1927.
Principal Dimensions by Steve Llanso of Middle Run Media | |
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Class | 2 |
Locobase ID | 10789 |
Railroad | Potomac, Fredericksburg & Piedmont |
Country | USA |
Whyte | 4-4-0 |
Number in Class | 1 |
Road Numbers | 2 |
Gauge | 3' |
Number Built | 1 |
Builder | Burnham, Williams & Co |
Year | 1902 |
Valve Gear | Stephenson |
Locomotive Length and Weight | |
Driver Wheelbase (ft / m) | 8.17 / 2.49 |
Engine Wheelbase (ft / m) | 21.67 / 6.61 |
Ratio of driving wheelbase to overall engine wheelbase | 0.38 |
Overall Wheelbase (engine & tender) (ft / m) | 40.58 / 12.37 |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
Weight on Drivers (lbs / kg) | 36,540 / 16,574 |
Engine Weight (lbs / kg) | 57,500 / 26,082 |
Tender Loaded Weight (lbs / kg) | 27,500 / 12,474 |
Total Engine and Tender Weight (lbs / kg) | 85,000 / 38,556 |
Tender Water Capacity (gals / ML) | 1400 / 5.30 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 30 / 15 |
Geometry Relating to Tractive Effort | |
Driver Diameter (in / mm) | 44 / 1118 |
Boiler Pressure (psi / kPa) | 150 / 1030 |
High Pressure Cylinders (dia x stroke) (in / mm) | 13" x 18" / 330x457 |
Tractive Effort (lbs / kg) | 8815 / 3998.42 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.15 |
Heating Ability | |
Tubes (number - dia) (in / mm) | 148 - 1.75" / 44 |
Flues (number - dia) (in / mm) | |
Flue/Tube length (ft / m) | 10.92 / 3.33 |
Firebox Area (sq ft / m2) | 70.20 / 6.52 |
Grate Area (sq ft / m2) | 10 / 0.93 |
Evaporative Heating Surface (sq ft / m2) | 803 / 74.63 |
Superheating Surface (sq ft / m2) | |
Combined Heating Surface (sq ft / m2) | 803 / 74.63 |
Evaporative Heating Surface/Cylinder Volume | 289.89 |
Computations Relating to Power Output (More Information) | |
Robert LeMassena's Power Computation | 1500 |
Same as above plus superheater percentage | 1500 |
Same as above but substitute firebox area for grate area | 10,530 |
Power L1 | 4583 |
Power MT | 553.03 |