Data from Krupp im Dienst der Dampflokomotive (Essen, Germany: Krupp, 1940), p 113. Works numbers were 927-930 in September1925.
This quartet of mixed-traffic Pacifics offered a relatively small evaporative heating surface area eompared to other metre-gauge 4-6-2s found in Locobase. At the other end of the comparison spectrum, the design's grate area was one of the largest. Low-calorie coal most likely demanded such a spacious fireplace. Its tractive effort placed in the top third.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | unknown |
| Locobase ID | 21291 |
| Railroad | Araraquara |
| Country | Brazil |
| Whyte | 4-6-2 |
| Number in Class | 4 |
| Road Numbers | |
| Gauge | metre |
| Number Built | 4 |
| Builder | Krupp |
| Year | 1925 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | |
| Engine Wheelbase (ft / m) | |
| Ratio of driving wheelbase to overall engine wheelbase | |
| Overall Wheelbase (engine & tender) (ft / m) | |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 66,139 / 30,000 |
| Engine Weight (lbs / kg) | 113,317 / 51,400 |
| Tender Loaded Weight (lbs / kg) | 65,036 / 29,500 |
| Total Engine and Tender Weight (lbs / kg) | 178,353 / 80,900 |
| Tender Water Capacity (gals / ML) | 2640 / 10 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 5.50 / 5 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 37 / 18.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 44.90 / 1140 |
| Boiler Pressure (psi / kPa) | 191 / 1300 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 17.32" x 20" / 440x508 |
| Tractive Effort (lbs / kg) | 21,694 / 9840.24 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.05 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | |
| Firebox Area (sq ft / m2) | |
| Grate Area (sq ft / m2) | 37.89 / 3.52 |
| Evaporative Heating Surface (sq ft / m2) | 930 / 86.40 |
| Superheating Surface (sq ft / m2) | 269 / 25 |
| Combined Heating Surface (sq ft / m2) | 1199 / 111.40 |
| Evaporative Heating Surface/Cylinder Volume | 170.52 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 7237 |
| Same as above plus superheater percentage | 8829 |
| Same as above but substitute firebox area for grate area | |
| Power L1 | |
| Power MT | |