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New Zealand Railways E 66
For the 1 in 15 (6.667%) Rimutaka incline on the North Island, the NZR needed a powerful locomotive at the beginning of the century that could haul trains without the assistance of another locomotive. Previously, thes...
General
| Property | New Zealand Railways E 66Remove |
|---|---|
| Built | 1906 |
| Manufacturers | Petone |
| Wheel arrangement | 2-6-6-0T (Mogul Mallet) |
| Gauge | 1,067 mm (Cape gauge) |
Dimensions and weights
| Property | New Zealand Railways E 66Remove |
|---|---|
| Length | 11.33 m |
| Wheelbase | 8.31 m |
| Rigid wheelbase | 2.44 m |
| Service weight | 66.9 t |
| Adhesive weight | 62.1 t |
| Water capacity | 5,682 l |
| Fuel capacity | 3.3 t (coal) |
Boiler
| Property | New Zealand Railways E 66Remove |
|---|---|
| Grate area | 2.415 m² |
| Evaporative heating surface | 143.071 m² |
| Total heating surface | 143.1 m² |
Power plant
| Property | New Zealand Railways E 66Remove |
|---|---|
| Driver diameter | 927 mm |
| Boiler pressure | 13.8 bar |
| Expansion type | compound |
| Cylinders | eight, HP: 241 x 457 mm and LP: 406 x 457 mm |
Power
| Property | New Zealand Railways E 66Remove |
|---|---|
| Power source | steam |
| Estimated power | 410 kW (557 PS) |
| Starting effort | 99.5 kN |
| Starting effort simple | 119.4 kN |
Calculated values
| Property | New Zealand Railways E 66Remove |
|---|---|
| Factor of adhesion | 1 : 6.12 |
| Optimal speed | 26 km/h |
| Power-to-weight ratio | 6.1 kW/t |
| Adhesive weight/Total | 1 : 1.08 |
| Tractive force/Heating surface | 1 : 14.53 |
| Grate area/Heating surface | 1 : 59.24 |
