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Austrian Federal Railways class 297
In order to be able to increase the weight of the ore trains on the Erzbergbahn, two heavy rack locomotives with a 2-12-2RT wheel arrangement were put into service in 1942. They were initially planned as class 369 of ...
| Austrian Federal Railways class 297Remove | |
|---|---|
| Variant | Standard |
| Built | 1942 |
| Manufacturers | Floridsdorf |
| Wheel arrangement | 1F1 z t |
| Gauge | 1435 mm |
| Length | 14800 mm |
| Service mass | 125000 kg |
| Top speed | 30 km/h |
| Power | |
| Engine |
General
| Property | Austrian Federal Railways class 297 Standard Remove |
|---|---|
| Built | 1942 |
| Manufacturers | Floridsdorf |
| Wheel arrangement | 2-12-2RT (Javanic) |
| Gauge | 1,435 mm |
Dimensions and weights
| Property | Austrian Federal Railways class 297 Standard Remove |
|---|---|
| Length | 14.80 m |
| Wheelbase | 11.45 m |
| Service mass | 125 t |
| Adhesion mass | 98 t |
| Water capacity | 3,500 l |
Boiler
| Property | Austrian Federal Railways class 297 Standard Remove |
|---|---|
| Grate area | 3.9 m² |
| Firebox surface | 15.7 m² |
| Tube heating surface | 195.2 m² |
| Evaporative heating surface | 210.9 m² |
| Superheater surface | 72.5 m² |
| Total heating surface | 283.4 m² |
Power plant
| Property | Austrian Federal Railways class 297 Standard Remove |
|---|---|
| Driver diameter | 1,050 mm |
| Boiler pressure | 16 bar |
| Expansion type | simple expansion |
| Cylinders | four, 610 x 520 mm |
Power
| Property | Austrian Federal Railways class 297 Standard Remove |
|---|---|
| Power source | steam |
| Estimated power | 1,300 kW (1,768 PS) |
| Top speed | 30 km/h |
| Starting effort | 501.2 kN |
Calculated values
| Property | Austrian Federal Railways class 297 Standard Remove |
|---|---|
| Factor of adhesion | 1 : 1.92 |
| Optimal speed | 16 km/h |
| Power-to-weight ratio | 10.4 kW/t |
| Heating Surface Equivalent | 434.4 m² |
| Cylinder volume/HSE | 1 : 1,399.34 |
| Adhesive weight/Total | 1 : 1.28 |
| Tractive force/Heating surface | 1 : 36.94 |
| Grate area/Heating surface | 1 : 72.67 |
| Firebox/Tube surface | 1 : 12.43 |
| Total/Superheater | 1 : 2.91 |
