Data from [], accessed 24 June 2007. Tube and flue heating surface was measured on the fire side; water-side areas (as calculated in US and British locomotives, e.g.) calculated to be approximately 10% more.
Principal Dimensions by Steve Llanso of Sweat House Media | |
---|---|
Class | 81 / 58.70 |
Locobase ID | 4668 |
Railroad | Öesterreichische Bundesbahnen |
Country | Austria |
Whyte | 2-10-0 |
Number in Class | 73 |
Road Numbers | 81.01-055, 400-415, 450-451 |
Gauge | Std |
Number Built | 73 |
Builder | several |
Year | 1920 |
Valve Gear | Heusinger |
Locomotive Length and Weight | |
Driver Wheelbase (ft / m) | 14.76 / 4.50 |
Engine Wheelbase (ft / m) | 27.89 / 8.50 |
Ratio of driving wheelbase to overall engine wheelbase | 0.53 |
Overall Wheelbase (engine & tender) (ft / m) | 48.82 / 14.88 |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
Weight on Drivers (lbs / kg) | 156,528 / 71,000 |
Engine Weight (lbs / kg) | 178,574 / 81,000 |
Tender Loaded Weight (lbs / kg) | 85,980 / 39,000 |
Total Engine and Tender Weight (lbs / kg) | 264,554 / 120,000 |
Tender Water Capacity (gals / ML) | 4224 / 16 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 7.50 / 7 |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 52 / 26 |
Geometry Relating to Tractive Effort | |
Driver Diameter (in / mm) | 51.10 / 1298 |
Boiler Pressure (psi / kPa) | 217.60 / 15 |
High Pressure Cylinders (dia x stroke) (in / mm) | 23.23" x 24.8" / 590x630 |
Tractive Effort (lbs / kg) | 48,440 / 21972.04 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.23 |
Heating Ability | |
Tubes (number - dia) (in / mm) | |
Flues (number - dia) (in / mm) | |
Flue/Tube length (ft / m) | 15.42 / 4.70 |
Firebox Area (sq ft / m2) | 166.78 / 15.50 |
Grate Area (sq ft / m2) | 44.55 / 4.14 |
Evaporative Heating Surface (sq ft / m2) | 2043 / 189.90 |
Superheating Surface (sq ft / m2) | 540 / 50.20 |
Combined Heating Surface (sq ft / m2) | 2583 / 240.10 |
Evaporative Heating Surface/Cylinder Volume | 167.94 |
Computations Relating to Power Output (More Information) | |
Robert LeMassena's Power Computation | 9694 |
Same as above plus superheater percentage | 11,730 |
Same as above but substitute firebox area for grate area | 43,913 |
Power L1 | 11,786 |
Power MT | 830.00 |