Data from Lionel Wiener, "Locomotives of the Rio Grande do Sul", Locomotive Magazine, Volume 18 (15 July 1912), pp. 257-258. Works number was 3368 in 1896.
This Eight-wheeled tank featured some changes from the earlier PA&NH locomotives. Most notable was the adoption of the external radial valve gear.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | Navegantes |
| Locobase ID | 20102 |
| Railroad | Porto Alegre a Novo Hamburgo |
| Country | Brazil |
| Whyte | 4-4-0T |
| Number in Class | 1 |
| Road Numbers | 7 |
| Gauge | Metre |
| Number Built | 1 |
| Builder | Dubs & Co |
| Year | 1896 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 5 / 1.68 |
| Engine Wheelbase (ft / m) | 15.31 / 2.95 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.33 |
| Overall Wheelbase (engine & tender) (ft / m) | 15.31 / 2.95 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | |
| Engine Weight (lbs / kg) | 40,320 / 14,225 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | 40,320 / 14,225 |
| Tender Water Capacity (gals / ML) | |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 60 / 1524 |
| Boiler Pressure (psi / kPa) | 160 / 1100 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 12" x 18" / 305x457 |
| Tractive Effort (lbs / kg) | 5875 / 2664.86 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | / 32 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | / 2.54 |
| Firebox Area (sq ft / m2) | 134 / 12.45 |
| Grate Area (sq ft / m2) | |
| Evaporative Heating Surface (sq ft / m2) | 546 / 50.72 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 546 / 50.72 |
| Evaporative Heating Surface/Cylinder Volume | 231.73 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | |
| Same as above plus superheater percentage | |
| Same as above but substitute firebox area for grate area | 21,440 |
| Power L1 | 8257 |
| Power MT | |