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New Zealand Railways class L[h]A[/h]
![L[h]A[/h] 313](/data/photos/NZR_LA.jpg)
The five locomotives of the class L[h]A[/h] were originally built between 1887 and 1892 for the New Zealand Midland Railway Company. As they were the first locomotives of this company, they had to haul all kinds of tr...
General
| Property | New Zealand Railways class L[h]A[/h]Remove |
|---|---|
| Built | 1887-1892 |
| Manufacturers | Nasmyth, Wilson & Co. |
| Wheel arrangement | 4-4-0T (American) |
| Gauge | 1,067 mm (Cape gauge) |
Dimensions and weights
| Property | New Zealand Railways class L[h]A[/h]Remove |
|---|---|
| Length | 7.98 m |
| Wheelbase | 5.23 m |
| Rigid wheelbase | 2.13 m |
| Service weight | 27 t |
| Adhesive weight | 18.1 t |
| Water capacity | 2,956 l |
| Fuel capacity | 0.9 t (coal) |
Boiler
| Property | New Zealand Railways class L[h]A[/h]Remove |
|---|---|
| Grate area | 0.994 m² |
| Firebox surface | 4.645 m² |
| Tube heating surface | 49.703 m² |
| Evaporative heating surface | 54.348 m² |
| Total heating surface | 54.3 m² |
Power plant
| Property | New Zealand Railways class L[h]A[/h]Remove |
|---|---|
| Driver diameter | 1,080 mm |
| Boiler pressure | 11 bar |
| Expansion type | simple expansion |
| Cylinders | two, 305 x 457 mm |
Power
| Property | New Zealand Railways class L[h]A[/h]Remove |
|---|---|
| Power source | steam |
| Estimated power | 186 kW (253 PS) |
| Starting effort | 36.9 kN |
Calculated values
| Property | New Zealand Railways class L[h]A[/h]Remove |
|---|---|
| Factor of adhesion | 1 : 4.81 |
| Optimal speed | 31 km/h |
| Power-to-weight ratio | 6.9 kW/t |
| Heating Surface Equivalent | 77.6 m² |
| Cylinder volume/HSE | 1 : 860.09 |
| Adhesive weight/Total | 1 : 1.49 |
| Tractive force/Heating surface | 1 : 14.18 |
| Grate area/Heating surface | 1 : 54.68 |
| Firebox/Tube surface | 1 : 10.70 |
