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NZR DA Pack

The New Zealand DA class locomotive were a class of diesel-electric mainline locomotives operated on the New Zealand railway system between 1955 and 1989. Consisting of 146 locomotives, it was the most numerous class to ever operate in New Zealand, with five more than the AB class steam locomotive.

The class were A1A-A1A versions of the Electro-Motive Diesel G12 model, with the design altered slightly to run on New Zealand's 3 ft 6 in (1,067 mm) rail system, and fit the small loading gauge. They were introduced between 1955 and 1967 in three phases and were the first class of diesel locomotives to seriously displace steam traction.

This first batch of 30 were built by EMD. known as Phase I, (DA 1400-1429) entered service between August 1955 and January 1956. The Phase II variant of the class were built by Clyde Engineering, which featured longer-than-standard chassis to accommodate a larger fuel tank than the earlier Phase I (1955) variant.
The rest were known as Phase III, being built by GMD.

6 DAs have been preserved, which are 1400, Preserved by Motat, 1401 preserved by Fielding District Steam Rail, 1410, Preserved by Steam Inc along with 1431 and 1471, and 1429 preserved by DBM Contracting

(If you want to make a conversion of them, feel free to ask)