Data from DeGolyer, Volume 17, p. 53. Works number was 12203 in December 1891.
Locomotives of nearly every kind would use Vauclain's four-cylinder compound design. The narrow gauge necessarily reduced overall dimensions so the piston valves (7"/179 mm) piston valves to supply steam to each pair of 1 HP and 1 LP cylinders measured 7" (177 mm) in diameter. The drivers were quite tall in relation to the gauge; for standard gauge (56 1/2"/1,435 mm) engines an equivalent ratio would yield a 79" (2,007 mm) driver.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | Leopoldo Leite |
| Locobase ID | 20705 |
| Railroad | Leopoldina |
| Country | Brazil |
| Whyte | 4-4-0 |
| Number in Class | 2 |
| Road Numbers | 1-2 |
| Gauge | Metre |
| Number Built | 2 |
| Builder | Burnham, Williams & Co |
| Year | 1891 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 8.17 / 2.49 |
| Engine Wheelbase (ft / m) | 20.42 / 6.22 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.40 |
| Overall Wheelbase (engine & tender) (ft / m) | |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 36,000 / 16,329 |
| Engine Weight (lbs / kg) | 50,000 / 22,680 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | 2000 / 7.58 |
| 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) | 55.50 / 1410 |
| Boiler Pressure (psi / kPa) | 175 / 1210 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 9" x 20" / 229x508 |
| Low Pressure Cylinders (dia x stroke) (in / mm) | 15" x 20" / 381x508 |
| Tractive Effort (lbs / kg) | 6385 / 2896.19 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.64 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 140 - 2" / 51 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 9.83 / 3 |
| Firebox Area (sq ft / m2) | 73 / 6.78 |
| Grate Area (sq ft / m2) | 10 / 0.93 |
| Evaporative Heating Surface (sq ft / m2) | 794 / 73.77 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 794 / 73.77 |
| Evaporative Heating Surface/Cylinder Volume | 539.17 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 1750 |
| Same as above plus superheater percentage | 1750 |
| Same as above but substitute firebox area for grate area | 12,775 |
| Power L1 | 4586 |
| Power MT | 561.69 |