Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 17, p. 208. works number was 12466 in February 1892.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 3 |
| Locobase ID | 12018 |
| Railroad | Minas de Sao Jeronymo |
| Country | Brazil |
| Whyte | 0-6-2T |
| Number in Class | 1 |
| Road Numbers | 3 |
| Gauge | 3'6" |
| Number Built | 1 |
| Builder | Burnham, Williams & Co |
| Year | 1892 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 7.83 / 2.39 |
| Engine Wheelbase (ft / m) | 15.50 / 4.72 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.51 |
| Overall Wheelbase (engine & tender) (ft / m) | 15.50 / 4.72 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 39,000 / 17,690 |
| Engine Weight (lbs / kg) | 44,000 / 19,958 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | 550 / 2.08 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 22 / 11 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 36 / 914 |
| Boiler Pressure (psi / kPa) | 130 / 900 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 12" x 18" / 305x457 |
| Tractive Effort (lbs / kg) | 7956 / 3608.79 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.90 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 59 - 2" / 51 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 11.33 / 3.45 |
| Firebox Area (sq ft / m2) | 43.50 / 4.04 |
| Grate Area (sq ft / m2) | 7.20 / 0.67 |
| Evaporative Heating Surface (sq ft / m2) | 477 / 44.33 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 477 / 44.33 |
| Evaporative Heating Surface/Cylinder Volume | 202.45 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 936 |
| Same as above plus superheater percentage | 936 |
| Same as above but substitute firebox area for grate area | 5655 |
| Power L1 | 2299 |
| Power MT | 389.88 |