Data from DeGolyer, Volume 66, pp. 311+. Works numbers were 55358-55369 in April 1922.
Although owned and lettered for the "Inspectoria Federal de Obras Contra As Seccas [sic]" , these dozen wood-burning saddle tanks operated on the RVC. (Alco supplied several of similar design to the RVC in 1912.)
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 500 |
| Locobase ID | 15184 |
| Railroad | |
| Country | Brazil |
| Whyte | 0-4-0ST |
| Number in Class | 12 |
| Road Numbers | 500-511 |
| Gauge | Metre |
| Number Built | 12 |
| Builder | Baldwin |
| Year | 1922 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 4.50 / 1.37 |
| Engine Wheelbase (ft / m) | 4.50 / 1.37 |
| Ratio of driving wheelbase to overall engine wheelbase | 1 |
| Overall Wheelbase (engine & tender) (ft / m) | 4.50 / 1.37 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 41,000 / 18,597 |
| Engine Weight (lbs / kg) | 41,000 / 18,597 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | 41,000 / 18,597 |
| Tender Water Capacity (gals / ML) | 450 / 1.70 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 34 / 17 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 33 / 838 |
| Boiler Pressure (psi / kPa) | 150 / 1030 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 11" x 16" / 279x406 |
| Tractive Effort (lbs / kg) | 7480 / 3392.87 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.48 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 67 - 2" / 51 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 7.67 / 2.34 |
| Firebox Area (sq ft / m2) | 35 / 3.25 |
| Grate Area (sq ft / m2) | 7.10 / 0.66 |
| Evaporative Heating Surface (sq ft / m2) | 301 / 27.96 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 301 / 27.96 |
| Evaporative Heating Surface/Cylinder Volume | 171.04 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 1065 |
| Same as above plus superheater percentage | 1065 |
| Same as above but substitute firebox area for grate area | 5250 |
| Power L1 | 2231 |
| Power MT | 239.93 |