See Reder (1974). Data confirmed and supplemented by [], first accessed 14 August 2006; later [], last accessed 14 October 2022; Tomasz Galka, "Os 24" on hs Standard-Gauge Locomotives in Poland (English version) website at
[], last accessed 14 October 2022. Works numbers were 4000-4001 in 1915.
Prototypes for the later Series 113 (Locobase 2469), these engines were tested in 1914 against the 2-8-2 four-cylinder engines introduced a year earlier. They proved capable of pulling 449 tons at 31 mph (50 kph) up a 1% grade, which was more than satisfactory. Galka descirbes their duty as "primarily for passenger traffic over the Semmering Pass between Vienna and Graz" and adds that they showed speed and power, but "prone to snaking, so running above 80 km/h [50 mph] was somehow uneasy."
The onset of World War I prevented further production, but post-war production of the Series 113 showed Austrian satisfaction with the basic 4-8-0 design.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 570/BR 33/OBB 133 |
| Locobase ID | 2470 |
| Railroad | Oesterreichischen Sudbahn |
| Country | Austria |
| Whyte | 4-8-0 |
| Number in Class | 2 |
| Road Numbers | 570.01-570.02/BR 33.001-002/133.001-.002 |
| Gauge | Std |
| Number Built | 2 |
| Builder | StEG |
| Year | 1915 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 18.21 / 5.55 |
| Engine Wheelbase (ft / m) | 31.30 / 9.54 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.58 |
| Overall Wheelbase (engine & tender) (ft / m) | |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 126,104 / 57,200 |
| Engine Weight (lbs / kg) | 184,527 / 83,700 |
| Tender Loaded Weight (lbs / kg) | 96,651 / 43,840 |
| Total Engine and Tender Weight (lbs / kg) | 281,178 / 127,540 |
| Tender Water Capacity (gals / ML) | 7128 / 27 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 53 / 26.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 68.50 / 1740 |
| Boiler Pressure (psi / kPa) | 203.10 / 1400 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 24.02" x 25.59" / 610x650 |
| Tractive Effort (lbs / kg) | 37,210 / 16878.19 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.39 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 17.06 / 5.20 |
| Firebox Area (sq ft / m2) | 173.30 / 16.10 |
| Grate Area (sq ft / m2) | 48.12 / 4.47 |
| Evaporative Heating Surface (sq ft / m2) | 2156 / 200.30 |
| Superheating Surface (sq ft / m2) | 748 / 69.50 |
| Combined Heating Surface (sq ft / m2) | 2904 / 269.80 |
| Evaporative Heating Surface/Cylinder Volume | 160.64 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 9773 |
| Same as above plus superheater percentage | 12,314 |
| Same as above but substitute firebox area for grate area | 44,349 |
| Power L1 | 16,852 |
| Power MT | 1178.46 |