Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 27, p. 18. Works numbers were 23987-23998, 24017 in March 1903; 24047 in April.
Locobase 11787 shows the earlier batch of Moguls delivered to Brazil's Rio Grande in the 1880s. More than 20 years later, a new batch of very similar locomotives arrived, possibly to replace the earlier set. Almost all of the dimensions were unchanged, but the boiler now operated at 20% greater pressure.
Names included: Roxo de Rodrigues, Fabic Rego, Barose e Vasconcellos, Simces Correa, and Roberto Hilling.
Baldwin would add four larger Moguls two years later.
NB: see Locobase 13987 for an overview of the RG do Sul as described by Lionel Wiener in 1912.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | Roxo de Rodrigues |
| Locobase ID | 12702 |
| Railroad | Sao Paulo a Rio Grande |
| Country | Brazil |
| Whyte | 2-6-0 |
| Number in Class | 5 |
| Road Numbers | 9-13 |
| Gauge | Metre |
| Number Built | 5 |
| Builder | Burnham, Williams & Co |
| Year | 1904 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 9.67 / 2.95 |
| Engine Wheelbase (ft / m) | 15.92 / 4.85 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.61 |
| Overall Wheelbase (engine & tender) (ft / m) | 37.50 / 11.43 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 48,000 / 21,772 |
| Engine Weight (lbs / kg) | 56,000 / 25,401 |
| Tender Loaded Weight (lbs / kg) | 46,000 / 20,865 |
| Total Engine and Tender Weight (lbs / kg) | 102,000 / 46,266 |
| Tender Water Capacity (gals / ML) | 2200 / 8.33 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 27 / 13.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 42 / 1067 |
| Boiler Pressure (psi / kPa) | 160 / 1100 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 14" x 18" / 356x457 |
| Tractive Effort (lbs / kg) | 11,424 / 5181.85 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.20 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 142 - 1.75" / 44 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 8.62 / 2.63 |
| Firebox Area (sq ft / m2) | 72 / 6.69 |
| Grate Area (sq ft / m2) | 12.60 / 1.17 |
| Evaporative Heating Surface (sq ft / m2) | 626 / 58.18 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 626 / 58.18 |
| Evaporative Heating Surface/Cylinder Volume | 195.20 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 2016 |
| Same as above plus superheater percentage | 2016 |
| Same as above but substitute firebox area for grate area | 11,520 |
| Power L1 | 3443 |
| Power MT | 474.41 |