 The tests were satisfactory, but as coal was much cheaper than oil at the time, no further conversions took place.There were 41 in the class; built by Addington Workshops (10), Hillside Workshops (16), and A & G Price of Thames (15).In 1902, a drawing was made showing a 2-6-4T tank locomotive, based on a proposal to convert the NZR V class 2-6-2 tender locomotives to tank locomotives.