NZR WJ class
The NZR WJ class was a lone steam locomotive built by Baldwin Locomotive Works for service on New Zealand's private Wellington and Manawatu Railway. It acquired the WJ classification when the publicly owned New Zealand Railways Department purchased the WMR and its locomotive fleet in 1908.
Introduction
The locomotive entered service in July 1904 with WMR road No. 3. It was the first WMR locomotive to have piston valves.A large 2-8-4T tank engine nicknamed Jumbo, it was based at Wellington for all its life. It was used as a banker out of Wellington up the Ngaio bank to Johnsonville, which had long grades of 1 in 40 up to Crofton and Khandallah and tunnels No 1 to 5.
It ran by 29 February 1908. Jumbo was allegedly hated by both drivers and firemen, but all agreed that it was extremely strong and durable. Like all Baldwin locomotives, it had cast bar frames; in this case, they gave considerable trouble, for they persistently broke immediately behind the smokebox saddle.
When taken into the NZR fleet in 1908, it was allocated its own class and NZR No. 466. With a tendency for breaking its frames on the heavy banking duty, Jumbo saw little service after 1920.