Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 34, p. 371 Works numbers were 34401-34402 in March 1910.
The specs show this pair of Ten-wheelers was bound for a narrow-gauge that was lightly built and somewhat curvy. Rail weight was 20 kg/metre (40 lb/yard), curves as tight as 80 metres (262 feet), and grades as steep as 3%. The steel firebox burned soft coal briquettes; see Locobase 11802 for a description of one form of this composite.
Principal Dimensions by Steve Llanso of Sweat House Media | |
|---|---|
| Class | 41 |
| Locobase ID | 13664 |
| Railroad | Parana |
| Country | Brazil |
| Whyte | 4-6-0 |
| Number in Class | 2 |
| Road Numbers | 41-42 |
| Gauge | Metre |
| Number Built | 2 |
| Builder | Baldwin |
| Year | 1910 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 11 / 3.35 |
| Engine Wheelbase (ft / m) | 20.42 / 6.22 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.54 |
| Overall Wheelbase (engine & tender) (ft / m) | |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 72,000 / 32,659 |
| Engine Weight (lbs / kg) | 92,000 / 41,731 |
| Tender Loaded Weight (lbs / kg) | 50,000 / 22,680 |
| Total Engine and Tender Weight (lbs / kg) | 142,000 / 64,411 |
| Tender Water Capacity (gals / ML) | 2500 / 9.47 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 5 / 5 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 40 / 20 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 48 / 1219 |
| Boiler Pressure (psi / kPa) | 160 / 11 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 17" x 22" / 432x559 |
| Tractive Effort (lbs / kg) | 18,014 / 8171.02 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.00 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 186 - 2" / 51 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 12 / 3.66 |
| Firebox Area (sq ft / m2) | 98 / 9.10 |
| Grate Area (sq ft / m2) | 16.20 / 1.51 |
| Evaporative Heating Surface (sq ft / m2) | 1258 / 116.87 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 1258 / 116.87 |
| Evaporative Heating Surface/Cylinder Volume | 217.66 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 2592 |
| Same as above plus superheater percentage | 2592 |
| Same as above but substitute firebox area for grate area | 15,680 |
| Power L1 | 3871 |
| Power MT | 355.59 |