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New Zealand Railways class F
The NZR class F was a 0-6-0 saddle tank locomotive built for mixed traffic between 1872 and 1888. A total of 88 locomotives were built by several British manufacturers: 26 by Avonside, 21 by Dübs, twelve by Neilson, a...
| New Zealand Railways class FRemove | |
|---|---|
| Variant | as built |
| Built | 1872-1888 |
| Manufacturers | Neilson & Co.;Dübs & Co.;Vulcan Foundry;Avonside;Robert Stephenson & Co.;Yorkshire Engine Co.;Black, Hawthorn & Co. |
| Wheel arrangement | C st |
| Gauge | 1067 mm |
| Length | 7099 mm |
| Service mass | 19508 kg |
| Top speed | 69 km/h |
| Power | |
| Engine |
General
| Property | New Zealand Railways class Fas built |
|---|---|
| Built | 1872-1888 |
| Manufacturers | Neilson & Co., Dübs & Co., Vulcan Foundry, Avonside, Robert Stephenson & Co., Yorkshire Engine Co., Black, Hawthorn & Co. |
| Wheel arrangement | 0-6-0ST (Six-coupled) |
| Gauge | 1,067 mm |
Dimensions and weights
| Property | New Zealand Railways class Fas built |
|---|---|
| Length | 7.10 m |
| Wheelbase | 3.18 m |
| Service mass | 19.5 t |
| Adhesion mass | 19.5 t |
| Rigid wheelbase | 3.18 m |
| Axle load | 6.5 t |
| Water capacity | 1,590 l |
| Fuel capacity | 1 t (coal) |
Boiler
| Property | New Zealand Railways class Fas built |
|---|---|
| Grate area | 0.883 m² |
| Evaporative heating surface | 45.197 m² |
| Total heating surface | 45.2 m² |
Power plant
| Property | New Zealand Railways class Fas built |
|---|---|
| Driver diameter | 927 mm |
| Boiler pressure | 9 bar |
| Expansion type | simple expansion |
| Cylinders | two, 267 x 457 mm |
Power
| Property | New Zealand Railways class Fas built |
|---|---|
| Power source | steam |
| Estimated power | 130 kW (177 PS) |
| Top speed | 69 km/h |
| Starting effort | 26.7 kN |
Calculated values
| Property | New Zealand Railways class Fas built |
|---|---|
| Factor of adhesion | 1 : 7.16 |
| Optimal speed | 31 km/h |
| Power-to-weight ratio | 6.7 kW/t |
| Adhesive weight/Total | 1 : 1.00 |
| Tractive force/Heating surface | 1 : 12.35 |
| Grate area/Heating surface | 1 : 51.19 |
