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Saxon XX HV
At the time they went into service, the class XX HV locomotives were the heaviest and most powerful express locomotives in Europe. In addition, they were the first and only express locomotives in Germany with the whee...
General
| Property | Saxon XX HV as built |
|---|---|
| Built | 1918-1923 |
| Manufacturers | Hartmann |
| Wheel arrangement | 2-8-2 (Mikado) |
| Gauge | 1,435 mm (Standard gauge) |
Dimensions and weights
| Property | Saxon XX HV as built |
|---|---|
| Length | 22.63 m |
| Length loco | 14.28 m |
| Wheelbase | 11.96 m |
| Rigid wheelbase | 4.00 m |
| Empty weight | 90.3 t |
| Service weight | 99.9 t |
| Adhesive weight | 68.6 t |
| Axle load | 17.2 t |
| Total weight | 162.7 t |
| Water capacity | 31,000 l |
| Fuel capacity | 7 t (coal) |
Boiler
| Property | Saxon XX HV as built |
|---|---|
| Grate area | 4.5 m² |
| Firebox surface | 15.6 m² |
| Tube heating surface | 211 m² |
| Evaporative heating surface | 226.6 m² |
| Superheater surface | 74 m² |
| Total heating surface | 300.6 m² |
Power plant
| Property | Saxon XX HV as built |
|---|---|
| Driver diameter | 1,905 mm |
| Boiler pressure | 15 bar |
| Expansion type | compound |
| Cylinders | four, HP: 480 x 630 mm and LP: 720 x 630 mm |
Power
| Property | Saxon XX HV as built |
|---|---|
| Power source | steam |
| Indicated power | 1,324 kW (1,800 PS) |
| Top speed | 100 km/h |
| Starting effort | 134.5 kN |
| Starting effort simple | 161.4 kN |
Calculated values
| Property | Saxon XX HV as built |
|---|---|
| Factor of adhesion | 1 : 5.00 |
| Optimal speed | 60 km/h |
| Power-to-weight ratio | 13.3 kW/t |
| Heating Surface Equivalent | 452.6 m² |
| Cylinder volume/HSE | 1 : 1,070.50 |
| Adhesive weight/Total | 1 : 1.46 |
| Tractive force/Heating surface | 1 : 9.35 |
| Grate area/Heating surface | 1 : 66.80 |
| Firebox/Tube surface | 1 : 13.53 |
| Total/Superheater | 1 : 3.06 |
