Warschau-Wiener 2-4-0 Locomotives in Poland


Class Details by Steve Llanso of Sweat House Media

Class 501 (Locobase 21053)

Data from "2/3 gek. Schnellzug-lokomotive fur Russiche Spurweite", Locomotiven, A Borsig (Tegel bei Berlin, 1898), archived on Historical Railway Images, Flickr, at [link], p. 11, last accessed 11 July 2022. Works numbers were 3707-3710 in October 1879 and 3719-3722 in May 1880. Fourteen more locomotives (509-522) appear on the list as engines for the "Warschau-Wiener und Warschau-Bromberger Eisenbahn". Their continuity suggests, but does not by itself confirm similarity in sepcifications. Works numbers were 3824-3827 in March 1882, 4091-4093 in December 1884, 4094-4098 in January 1885 and 4099-4100 in February.

The country that built its first rail line in its territory was known as the Kingdom of Poland and the railway ran from one official capital to another. But the practical effect of the Congress of Vienna's grant of the former Poland to Russia in 1815 was to preserve full control of affairs in Moscow.

Even so, the railway's gauge matched that of most of Western Europe and the builder was German. A look at the Borsig photo shows a tall stack, cylindrical steam dome topped by a safety valve and Belpaire firebox bearing a second safety valve stand.

The octet's relatively tall drivers reflect its passenger duties between Warsaw and the Austro-Hungarian border.

Principal Dimensions by Steve Llanso of Middle Run Media
Class501
Locobase ID21053
RailroadWarschau-Wiener
CountryPoland
Whyte2-4-0
Number in Class22
Road Numbers501-508
GaugeStd
Number Built22
BuilderBorsig
Year1879
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)
Engine Wheelbase (ft / m)
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)
Engine Weight (lbs / kg)83,070 / 37,680
Tender Loaded Weight (lbs / kg)59,966 / 27,200
Total Engine and Tender Weight (lbs / kg)143,036 / 64,880
Tender Water Capacity (gals / ML)2640 / 10
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 5.50 / 5
Minimum weight of rail (calculated) (lb/yd / kg/m)
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)72 / 1829
Boiler Pressure (psi / kPa)130.50 / 900
High Pressure Cylinders (dia x stroke) (in / mm)17.01" x 22.01" / 432x559
Tractive Effort (lbs / kg)9811 / 4450.20
Factor of Adhesion (Weight on Drivers/Tractive Effort)
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)18.41 / 1.71
Evaporative Heating Surface (sq ft / m2)1194 / 110.94
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1194 / 110.94
Evaporative Heating Surface/Cylinder Volume206.25
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2403
Same as above plus superheater percentage2403
Same as above but substitute firebox area for grate area
Power L1
Power MT

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