High-boilered simple-expansion Prairie Mallets shown on narrowmind.railfan.net. Works numbers were 72220-72226 .
Firebox heating surface includes 46 sq ft in the combustion chamber and 22 sq ft of firebrick tubes.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 1101 |
| Locobase ID | 10695 |
| Railroad | Rede de Viacao Parana Santa Catarina |
| Country | Brazil |
| Whyte | 2-6-6-2 |
| Number in Class | 7 |
| Road Numbers | 1101-1107 |
| Gauge | metre |
| Number Built | 7 |
| Builder | Baldwin |
| Year | 1945 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 7.67 / 2.34 |
| Engine Wheelbase (ft / m) | 38.17 / 11.63 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.20 |
| Overall Wheelbase (engine & tender) (ft / m) | 63.80 / 19.45 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 133,264 / 60,448 |
| Engine Weight (lbs / kg) | 154,150 / 69,921 |
| Tender Loaded Weight (lbs / kg) | 80,326 / 36,435 |
| Total Engine and Tender Weight (lbs / kg) | 234,476 / 106,356 |
| Tender Water Capacity (gals / ML) | 3700 / 14.02 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 6 / 6 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 37 / 18.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 43 / 1092 |
| Boiler Pressure (psi / kPa) | 162.40 / 1120 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 14" x 22" / 356x560 (4) |
| Tractive Effort (lbs / kg) | 27,685 / 12557.72 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.81 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 87 - 2" / 51 |
| Flues (number - dia) (in / mm) | 18 - 5.5" / 140 |
| Flue/Tube length (ft / m) | 18 / 5.49 |
| Firebox Area (sq ft / m2) | 178 / 16.54 |
| Grate Area (sq ft / m2) | 47 / 4.37 |
| Evaporative Heating Surface (sq ft / m2) | 1453 / 135.04 |
| Superheating Surface (sq ft / m2) | 378 / 35.13 |
| Combined Heating Surface (sq ft / m2) | 1831 / 170.17 |
| Evaporative Heating Surface/Cylinder Volume | 185.34 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 7633 |
| Same as above plus superheater percentage | 9236 |
| Same as above but substitute firebox area for grate area | 34,978 |
| Power L1 | 8529 |
| Power MT | 846.58 |