Since this information comes from a Czech-language website, I can only guess that this was a Henschel & Sohn design that was later enlarged to constitute the U 47 class on the Czech railways.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | unknown |
| Locobase ID | 5851 |
| Railroad | |
| Country | Portugal |
| Whyte | 0-4-4-0T |
| Number in Class | |
| Road Numbers | |
| Gauge | 75 cm |
| Number Built | |
| Builder | Henschel & Sohn |
| Year | |
| Valve Gear | Heusinger |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 3.76 / 1.15 |
| Engine Wheelbase (ft / m) | 13.12 / 4 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.29 |
| Overall Wheelbase (engine & tender) (ft / m) | |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 57,320 / 26,000 |
| Engine Weight (lbs / kg) | 57,320 / 26,000 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | 57,320 / 26,000 |
| Tender Water Capacity (gals / ML) | 660 / 2.50 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 1.10 / 1 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 24 / 12 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 31.50 / 800 |
| Boiler Pressure (psi / kPa) | 203.10 / 1400 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 9.45" x 15.75" / 240x400 |
| Low Pressure Cylinders (dia x stroke) (in / mm) | 14.57" x 15.75" / 370x400 |
| Tractive Effort (lbs / kg) | 10,852 / 4922.39 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.28 |
| 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) | 10.01 / 0.93 |
| Evaporative Heating Surface (sq ft / m2) | 485 / 45.10 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 485 / 45.10 |
| Evaporative Heating Surface/Cylinder Volume | 379.33 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 2033 |
| Same as above plus superheater percentage | 2033 |
| Same as above but substitute firebox area for grate area | |
| Power L1 | |
| Power MT | |