Data from Baldwin Locomotive Works Specification for Engines, as digitized by the DeGolyer Library of Southern Methodist University, Volume 20, p. 262. See also Lionel Wiener, "Locomotives of the Rio Grande do Sul", Volume 19 (15 April 1913), p. 215. Works numbers were 15242-15243 in March 1897.
Wiener contended that these were practically duplicates of the Porto Alegre Moguls of 1896 described in Locobase 12210. In fact, this pair was bigger and used longer cylinder strokes. They were later operated by the Rio Grande do Sul.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 9/216 |
| Locobase ID | 12234 |
| Railroad | Sud Ouest Bresilien/Compagnie Auxiliare |
| Country | Brazil |
| Whyte | 2-6-0 |
| Number in Class | 2 |
| Road Numbers | 9-10/216-217 |
| Gauge | Metre |
| Number Built | 2 |
| Builder | Burnham, Williams & Co |
| Year | 1897 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 10 / 3.05 |
| Engine Wheelbase (ft / m) | 16.67 / 5.08 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.60 |
| Overall Wheelbase (engine & tender) (ft / m) | 37.87 / 11.54 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 53,000 / 24,040 |
| Engine Weight (lbs / kg) | |
| Tender Loaded Weight (lbs / kg) | 32,000 / 14,515 |
| Total Engine and Tender Weight (lbs / kg) | 32,000 / 14,515 |
| Tender Water Capacity (gals / ML) | 1800 / 6.82 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 29 / 14.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 42 / 1067 |
| Boiler Pressure (psi / kPa) | 150 / 1030 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 15" x 20" / 381x508 |
| Tractive Effort (lbs / kg) | 13,661 / 6196.53 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.88 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 159 - 1.75" / 44 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 9.04 / 2.76 |
| Firebox Area (sq ft / m2) | 80.50 / 7.48 |
| Grate Area (sq ft / m2) | 15 / 1.39 |
| Evaporative Heating Surface (sq ft / m2) | 739 / 68.68 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 739 / 68.68 |
| Evaporative Heating Surface/Cylinder Volume | 180.66 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 2250 |
| Same as above plus superheater percentage | 2250 |
| Same as above but substitute firebox area for grate area | 12,075 |
| Power L1 | 2930 |
| Power MT | 365.63 |