 New Zealand DG and DH class locomotive

The New Zealand DG and DH class locomotive were a type of diesel-electric locomotives in operation on New Zealand's rail network from 1955-1983, built by English Electric.Due a change in NZR's dieselisation strategy the original order for 21 DF class locomotives was changed to 42 DG class locomotives, being a half-sized version of the DF with only one cab instead of two, and a similar Bulldog nose.