Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 29, p. 118. Works number was 28441 in June 1906.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | Lauro Muller |
| Locobase ID | 12986 |
| Railroad | Dona Thereza Christina |
| Country | Brazil |
| Whyte | 2-4-2T |
| Number in Class | 1 |
| Road Numbers | |
| Gauge | Metre |
| Number Built | 1 |
| Builder | Baldwin |
| Year | 1912 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 5 / 1.52 |
| Engine Wheelbase (ft / m) | 18.50 / 5.64 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.27 |
| Overall Wheelbase (engine & tender) (ft / m) | 18.50 / 5.64 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 29,000 / 13,154 |
| Engine Weight (lbs / kg) | 45,000 / 20,412 |
| 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) | 24 / 12 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 41 / 1041 |
| Boiler Pressure (psi / kPa) | 180 / 1240 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 11" x 16" / 279x406 |
| Tractive Effort (lbs / kg) | 7225 / 3277.21 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.01 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 91 - 1.5" / 38 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 8.12 / 2.47 |
| Firebox Area (sq ft / m2) | 51.50 / 4.79 |
| Grate Area (sq ft / m2) | 8.72 / 0.81 |
| Evaporative Heating Surface (sq ft / m2) | 340 / 31.60 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 340 / 31.60 |
| Evaporative Heating Surface/Cylinder Volume | 193.20 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 1570 |
| Same as above plus superheater percentage | 1570 |
| Same as above but substitute firebox area for grate area | 9270 |
| Power L1 | 4176 |
| Power MT | 634.93 |