Data from [], accessed 16 August 2006.
Although obliged to use the same layout as the Wien II because of the factory's inability to forge a crank axle, the Weilburg was substantially larger. One can see that the haystack firebox was already proving to be a limiting factor as the direct heating surface percentage dropped considerably.
Taken into the Sndlichen Staatsbahn in 1853, the Weilburg was scrapped in 1858 while the Brandhof took the Sndbahn's number (SB 860) before its retirement in 1860.
Data from [], accessed 16 August 2006.
These were among the very first locomotives to run in Austria and possibly the largest class up to the time. Their names were Wien II, Hietzing, Schoenbrunn, Belvedere, Lichtenstein, and Altmannsdorf. The Wikipedia entry notes that the 4-2-0 layout with outside cylinders and drive was chosen because the builder couldn't yet provide a crank axle. The profile shows a haystack firebox and tall, flaring, smoke-arresting stack.
An earlier locomotive named Wien was renamed Pressburg. Schonbrunn suffered a boiler explosion in 1847 while the other five wound up on the Sndlichen Staatsbahn in 1853 from which they were retired in 1857.
Principal Dimensions by Steve Llanso of Middle Run Media | ||
---|---|---|
Class | Weilburg | Wien II |
Locobase ID | 7784 | 7783 |
Railroad | Wien-Raaber Bahn | Wien-Raaber Bahn |
Country | Austria | Austria |
Whyte | 4-2-0 | 4-2-0 |
Number in Class | 2 | 6 |
Road Numbers | ||
Gauge | Std | Std |
Number Built | 2 | 6 |
Builder | StEG | StEG |
Year | 1842 | 1840 |
Valve Gear | ||
Locomotive Length and Weight | ||
Driver Wheelbase (ft / m) | ||
Engine Wheelbase (ft / m) | 9.06 / 2.76 | 9.33 / 2.84 |
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) | 27,756 / 12,590 | 23,325 / 10,580 |
Engine Weight (lbs / kg) | 44,423 / 20,150 | 37,038 / 16,800 |
Tender Loaded Weight (lbs / kg) | ||
Total Engine and Tender Weight (lbs / kg) | ||
Tender Water Capacity (gals / ML) | ||
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | ||
Minimum weight of rail (calculated) (lb/yd / kg/m) | 46 / 23 | 39 / 19.50 |
Geometry Relating to Tractive Effort | ||
Driver Diameter (in / mm) | 58.10 / 1475 | 49.80 / 1265 |
Boiler Pressure (psi / kPa) | 78.30 / 540 | 78.20 / 540 |
High Pressure Cylinders (dia x stroke) (in / mm) | 13" x 20.75" / 330x527 | 10.63" x 17.64" / 270x448 |
Tractive Effort (lbs / kg) | 4017 / 1822.08 | 2660 / 1206.56 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 6.91 | 8.77 |
Heating Ability | ||
Tubes (number - dia) (in / mm) | ||
Flues (number - dia) (in / mm) | ||
Flue/Tube length (ft / m) | ||
Firebox Area (sq ft / m2) | 50.57 / 4.70 | 33.36 / 3.10 |
Grate Area (sq ft / m2) | 9.36 / 0.87 | 8.50 / 0.79 |
Evaporative Heating Surface (sq ft / m2) | 576 / 53.50 | 360 / 33.46 |
Superheating Surface (sq ft / m2) | ||
Combined Heating Surface (sq ft / m2) | 576 / 53.50 | 360 / 33.46 |
Evaporative Heating Surface/Cylinder Volume | 180.69 | 198.68 |
Computations Relating to Power Output (More Information) | ||
Robert LeMassena's Power Computation | 733 | 665 |
Same as above plus superheater percentage | 733 | 665 |
Same as above but substitute firebox area for grate area | 3960 | 2609 |
Power L1 | 1971 | 1887 |
Power MT | 156.55 | 178.35 |