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Imperial-Royal Army Railway class VI and Railways of the Kingdom of the Serbs, Croatians and Slovenes class VIc7
In World War I, Henschel designed a Mallet tender locomotive for use by the Austro-Hungarian field railways in Serbia. 20 were to be delivered to Serbia, but by the end of the war only 19 had been completed. In 1930, ...
General
| Property | Imperial-Royal Army Railway class VI and Railways of the Kingdom of the Serbs, Croatians and Slovenes class VIc7Remove |
|---|---|
| Built | 1918, 1922 |
| Manufacturers | Henschel |
| Wheel arrangement | 2-6-6-0 |
| Gauge | 760 mm (Bosnian gauge) |
Dimensions and weights
| Property | Imperial-Royal Army Railway class VI and Railways of the Kingdom of the Serbs, Croatians and Slovenes class VIc7Remove |
|---|---|
| Length | 18.07 m |
| Wheelbase | 7.80 m |
| Rigid wheelbase | 2.00 m |
| Empty weight | 50 t |
| Service weight | 55 t |
| Adhesive weight | 48 t |
| Axle load | 8 t |
| Total weight | 88 t |
| Water capacity | 15,000 l |
| Fuel capacity | 5 t (coal) |
Boiler
| Property | Imperial-Royal Army Railway class VI and Railways of the Kingdom of the Serbs, Croatians and Slovenes class VIc7Remove |
|---|---|
| Grate area | 3 m² |
| Firebox surface | 9.7 m² |
| Tube heating surface | 90.04 m² |
| Evaporative heating surface | 99.74 m² |
| Superheater surface | 27.01 m² |
| Total heating surface | 126.8 m² |
Power plant
| Property | Imperial-Royal Army Railway class VI and Railways of the Kingdom of the Serbs, Croatians and Slovenes class VIc7Remove |
|---|---|
| Driver diameter | 800 mm |
| Boiler pressure | 14 bar |
| Expansion type | compound |
| Cylinders | four, HP: 360 x 400 mm and LP: 560 x 400 mm |
Power
| Property | Imperial-Royal Army Railway class VI and Railways of the Kingdom of the Serbs, Croatians and Slovenes class VIc7Remove |
|---|---|
| Power source | steam |
| Estimated power | 750 kW (1,020 PS) |
| Top speed | 30 km/h |
| Starting effort | 109.1 kN |
| Starting effort simple | 131.0 kN |
Calculated values
| Property | Imperial-Royal Army Railway class VI and Railways of the Kingdom of the Serbs, Croatians and Slovenes class VIc7Remove |
|---|---|
| Factor of adhesion | 1 : 4.31 |
| Optimal speed | 42 km/h |
| Power-to-weight ratio | 13.6 kW/t |
| Heating Surface Equivalent | 202.3 m² |
| Cylinder volume/HSE | 1 : 889.70 |
| Adhesive weight/Total | 1 : 1.15 |
| Tractive force/Heating surface | 1 : 17.98 |
| Grate area/Heating surface | 1 : 42.25 |
| Firebox/Tube surface | 1 : 9.28 |
| Total/Superheater | 1 : 3.69 |
