| New Zealand E class (1922) |
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| Type and origin |
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| Power type | Battery electric |
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| Builder | English Electric |
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| Build date | 1922 |
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| Total produced | 1 |
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| Specifications |
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Configuration:
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| • Whyte | 0-4-4-4 |
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| • UIC | Bo'Bo' |
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| Gauge | 3 ft 6 in (1,067 mm) |
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| Total weight | 54 long tons (60 short tons; 55 t) |
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| Performance figures |
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| Maximum speed | 10 mph (16 km/h) |
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| Power output | 176 hp (131 kW) |
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| Tractive effort | 6,200 lbf (28 kN) |
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The New Zealand E class battery-electric locomotive represented the third unique type of locomotive class to be given the E classification in New Zealand. The first was the E class of nine Double Fairlie steam locomotives of 1872-75; the second E class consisted of a Mallet compound made in 1906; and as both were no longer operated by the New Zealand Railways in 1923, the classification was free to be used for a third time when the small battery-electric locomotive was delivered. This is the only time a classification has been used three times in New Zealand, though re-use happened a number of other times, arguably most notably when the A class of 1906 took the designation originally used by the A class of 1873.
