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New Zealand Railways class W[h]F[/h]
When the NZR needed new locomotives für suburban service, initial plans to rebuild the 2-6-2 class V into tank locomotives were skipped in favor of the new build of the class W[h]F[/h]. These were 2-6-4T tank locomoti...
| New Zealand Railways class W[h]F[/h]Remove | |
|---|---|
| Variant | Standard |
| Built | 1904-1909, 1928 |
| Manufacturers | Addington;Hillside;A & G Price |
| Wheel arrangement | 1C2 t |
| Gauge | 1067 mm |
| Length | 10414 mm |
| Service mass | 44401 kg |
| Top speed | |
| Power | |
| Engine |
General
| Property | New Zealand Railways class W[h]F[/h] Standard Remove |
|---|---|
| Built | 1904-1909, 1928 |
| Manufacturers | Addington, Hillside, A & G Price |
| Wheel arrangement | 2-6-4T (Adriatic) |
| Gauge | 1,067 mm |
Dimensions and weights
| Property | New Zealand Railways class W[h]F[/h] Standard Remove |
|---|---|
| Length | 10.41 m |
| Wheelbase | 8.23 m |
| Service mass | 44.4 t |
| Adhesion mass | 27.3 t |
| Rigid wheelbase | 3.05 m |
| Axle load | 9.4 t |
| Water capacity | 4,319 l |
| Fuel capacity | 2.2 t (coal) |
Boiler
| Property | New Zealand Railways class W[h]F[/h] Standard Remove |
|---|---|
| Grate area | 1.431 m² |
| Evaporative heating surface | 67.726 m² |
| Total heating surface | 67.7 m² |
Power plant
| Property | New Zealand Railways class W[h]F[/h] Standard Remove |
|---|---|
| Driver diameter | 1,143 mm |
| Boiler pressure | 13.8 bar |
| Expansion type | simple expansion |
| Cylinders | two, 356 x 559 mm |
Power
| Property | New Zealand Railways class W[h]F[/h] Standard Remove |
|---|---|
| Power source | steam |
| Estimated power | 373 kW (507 PS) |
| Starting effort | 72.5 kN |
Calculated values
| Property | New Zealand Railways class W[h]F[/h] Standard Remove |
|---|---|
| Factor of adhesion | 1 : 3.70 |
| Optimal speed | 32 km/h |
| Power-to-weight ratio | 8.4 kW/t |
| Adhesive weight/Total | 1 : 1.62 |
| Tractive force/Heating surface | 1 : 22.35 |
| Grate area/Heating surface | 1 : 47.33 |
