Data from [] (visited December 2002)
This class was supplied to the Reichenberg-Gablonz-Tannwalder Eisenbahn, an 7.4-km (4.6 mile) Abt-system double-rack railway built from 1899-1902. In addition to their road numbers, the trio also had names:Dessendorf, Ignaz Ginzkey, and Polaun.
This line had four tunnels and gradients pitched at up to 5.8%. To tackle such a profile, the locomotive had the characteristic 420 mm x 450 mm (16.54 x 17.72") cylinders driving the 688-mm (27.09") double-rack gearing. Using its conventional drivers, the locomotive could reach 30km/h; on the rack, top speed was 15 km/h.
Like all of Austria's loks, this class cycled through several identities beginning with the Abt rack railway that ordered it originally. The Austrian part of the Austro-Hungarian empires' own kkStB classed as a 169.50-52 In 1925, they were reclassed by the nascent Czechoslovakian CSD as 404.001-003. During the German occupation period (1938-1945)they were the DRB's BR 97.601 1-3. In 1946, they regained their CSD class 404 ID.
404.103 was the only engine to be preserved, eventually going on display in non-operating condition at the Jaromerban a Vas+ti M+zeumban.
Principal Dimensions by Steve Llanso of Middle Run Media | |
---|---|
Class | 21 G/169/404 |
Locobase ID | 4662 |
Railroad | Reichenberg-Gablonz-Tannwalder |
Country | Austria |
Whyte | 0-8-2RT |
Number in Class | 3 |
Road Numbers | 21-23 |
Gauge | Std |
Number Built | 3 |
Builder | Floridsdorf |
Year | 1901 |
Valve Gear | Walschaert |
Locomotive Length and Weight | |
Driver Wheelbase (ft / m) | 10.33 / 3.15 |
Engine Wheelbase (ft / m) | 21.82 / 6.65 |
Ratio of driving wheelbase to overall engine wheelbase | 0.47 |
Overall Wheelbase (engine & tender) (ft / m) | 21.82 / 6.65 |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
Weight on Drivers (lbs / kg) | 119,049 / 54,000 |
Engine Weight (lbs / kg) | 146,607 / 66,500 |
Tender Loaded Weight (lbs / kg) | |
Total Engine and Tender Weight (lbs / kg) | |
Tender Water Capacity (gals / ML) | 1320 / 5 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 1.90 / 2 |
Minimum weight of rail (calculated) (lb/yd / kg/m) | |
Geometry Relating to Tractive Effort | |
Driver Diameter (in / mm) | 41.30 / 1049 |
Boiler Pressure (psi / kPa) | 174 / 1200 |
High Pressure Cylinders (dia x stroke) (in / mm) | 19.69" x 19.69" / 500x500 |
Tractive Effort (lbs / kg) | 27,337 / 12399.87 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.35 |
Heating Ability | |
Tubes (number - dia) (in / mm) | |
Flues (number - dia) (in / mm) | |
Flue/Tube length (ft / m) | |
Firebox Area (sq ft / m2) | 118.40 / 11 |
Grate Area (sq ft / m2) | 25.73 / 2.39 |
Evaporative Heating Surface (sq ft / m2) | 1785 / 165.80 |
Superheating Surface (sq ft / m2) | |
Combined Heating Surface (sq ft / m2) | 1785 / 165.80 |
Evaporative Heating Surface/Cylinder Volume | 257.23 |
Computations Relating to Power Output (More Information) | |
Robert LeMassena's Power Computation | 4477 |
Same as above plus superheater percentage | 4477 |
Same as above but substitute firebox area for grate area | 20,602 |
Power L1 | 4103 |
Power MT |