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New Zealand Railways class K (1877)
After some British locomotives, the K class of 1877 was the first US locomotive to see service in New Zealand. Externally, compared to the British locomotives, it had many special features that caused a stir. These in...
| New Zealand Railways class K (1877)Remove | |
|---|---|
| Variant | |
| Built | 1877-1878 |
| Manufacturers | Rogers |
| Wheel arrangement | 1B1 |
| Gauge | 1067 mm |
| Length | 13894 mm |
| Service mass | 23674 kg |
| Top speed | |
| Power | |
| Engine |
General
| Property | New Zealand Railways class K (1877)Remove |
|---|---|
| Built | 1877-1878 |
| Manufacturers | Rogers |
| Wheel arrangement | 2-4-2 (Columbia) |
| Gauge | 1,067 mm |
Dimensions and weights
| Property | New Zealand Railways class K (1877)Remove |
|---|---|
| Length | 13.89 m |
| Wheelbase | 6.78 m |
| Service mass | 23.7 t |
| Adhesion mass | 15 t |
| Total mass | 43.2 t |
| Rigid wheelbase | 3.61 m |
| Axle load | 7.5 t |
| Water capacity | 5,682 l |
| Fuel capacity | 2.2 t (coal) |
Boiler
| Property | New Zealand Railways class K (1877)Remove |
|---|---|
| Grate area | 0.819 m² |
| Evaporative heating surface | 54.72 m² |
| Total heating surface | 54.7 m² |
Power plant
| Property | New Zealand Railways class K (1877)Remove |
|---|---|
| Driver diameter | 1,257 mm |
| Boiler pressure | 9 bar |
| Expansion type | simple expansion |
| Cylinders | two, 305 x 508 mm |
Power
| Property | New Zealand Railways class K (1877)Remove |
|---|---|
| Power source | steam |
| Estimated power | 205 kW (279 PS) |
| Starting effort | 28.6 kN |
Calculated values
| Property | New Zealand Railways class K (1877)Remove |
|---|---|
| Factor of adhesion | 1 : 5.16 |
| Optimal speed | 43 km/h |
| Power-to-weight ratio | 8.7 kW/t |
| Adhesive weight/Total | 1 : 1.57 |
| Tractive force/Heating surface | 1 : 10.92 |
| Grate area/Heating surface | 1 : 66.81 |
