Tuscarora Valley 4-4-0 "American" Locomotives in the USA
Class Details by Steve Llanso of Sweat House Media
Class 3 (Locobase 14339)
Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Volume 53, pp. 320. See also a brief account of the TVRR at [
] . Works number was 43570 in June 1916.
Baldwin produced two 3-foot gauge locomotives for the TVRR; see Locobase 14340 for the 4-6-0. Both were rated as "passenger & freight" engines. Although both had the same driver diameters and virtually the same tube lengths, this Eight-wheeler used a slightly small grate to burn coal in a larger firebox.
Like the 2 shown in Locobase 14340, this narrow-gauge Eight-wheeler remained with the TVRR throughout its career and was scrapped once this Pennsylvania road closed in 1934.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 3 |
| Locobase ID | 14339 |
| Railroad | Tuscarora Valley |
| Country | USA |
| Whyte | 4-4-0 |
| Number in Class | 1 |
| Road Numbers | 3 |
| Gauge | 3' |
| Number Built | 1 |
| Builder | Baldwin |
| Year | 1916 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 8.17 / 2.49 |
| Engine Wheelbase (ft / m) | 21.17 / 6.45 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.39 |
| Overall Wheelbase (engine & tender) (ft / m) | 40.50 / 12.34 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 36,500 / 16,556 |
| Engine Weight (lbs / kg) | 59,500 / 26,989 |
| Tender Loaded Weight (lbs / kg) | 30,000 / 13,608 |
| Total Engine and Tender Weight (lbs / kg) | 89,500 / 40,597 |
| Tender Water Capacity (gals / ML) | 1500 / 5.68 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 3 / 3 |
| 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) | 160 / 1100 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 13" x 18" / 330x457 |
| Tractive Effort (lbs / kg) | 9403 / 4265.13 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.88 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 121 - 2" / 51 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 10.50 / 3.20 |
| Firebox Area (sq ft / m2) | 73 / 6.78 |
| Grate Area (sq ft / m2) | 10.10 / 0.94 |
| Evaporative Heating Surface (sq ft / m2) | 733 / 68.10 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 733 / 68.10 |
| Evaporative Heating Surface/Cylinder Volume | 264.62 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 1616 |
| Same as above plus superheater percentage | 1616 |
| Same as above but substitute firebox area for grate area | 11,680 |
| Power L1 | 4651 |
| Power MT | 561.85 |