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Imperial-Royal State Railways and Austrian Southern Railway class 429
The class 429 passenger locomotive of the kkStB was introduced in 1909 after superheater technology had established itself in Austria. It was developed from the 2-6-2 class 329 and looked very similar to that. The smo...
General
| Property | Imperial-Royal State Railways and Austrian Southern Railway class 429 Remove |
|---|---|
| Built | 1911-1918 |
| Manufacturers | Wiener Neustadt, StEG, Floridsdorf, BMMF |
| Wheel arrangement | 2-6-2 (Prairie) |
| Gauge | 1,435 mm (Standard gauge) |
Dimensions and weights
| Property | Imperial-Royal State Railways and Austrian Southern Railway class 429 Remove |
|---|---|
| Length loco | 10.55 m |
| Wheelbase | 8.03 m |
| Rigid wheelbase | 4.00 m |
| Total wheelbase | 13.80 m |
| Empty weight | 55.1 t |
| Service weight | 61.2 t |
| Adhesive weight | 43 t |
| Axle load | 14.3 t |
Boiler
| Property | Imperial-Royal State Railways and Austrian Southern Railway class 429 Remove |
|---|---|
| Grate area | 3 m² |
| Firebox surface | 14.2 m² |
| Tube heating surface | 85.6 m² |
| Evaporative heating surface | 99.8 m² |
| Superheater surface | 28.25 m² |
| Total heating surface | 128.1 m² |
Power plant
| Property | Imperial-Royal State Railways and Austrian Southern Railway class 429 Remove |
|---|---|
| Driver diameter | 1,614 mm |
| Boiler pressure | 15 bar |
| Expansion type | simple expansion |
| Cylinders | two, 475 x 720 mm |
Power
| Property | Imperial-Royal State Railways and Austrian Southern Railway class 429 Remove |
|---|---|
| Power source | steam |
| Estimated power | 900 kW (1,224 PS) |
| Top speed | 90 km/h |
| Starting effort | 128.3 kN |
Calculated values
| Property | Imperial-Royal State Railways and Austrian Southern Railway class 429 Remove |
|---|---|
| Factor of adhesion | 1 : 3.29 |
| Optimal speed | 43 km/h |
| Power-to-weight ratio | 14.7 kW/t |
| Heating Surface Equivalent | 227.3 m² |
| Cylinder volume/HSE | 1 : 1,122.64 |
| Adhesive weight/Total | 1 : 1.42 |
| Tractive force/Heating surface | 1 : 20.93 |
| Grate area/Heating surface | 1 : 42.68 |
| Firebox/Tube surface | 1 : 6.03 |
| Total/Superheater | 1 : 3.53 |
