- NZR OC class
NZR OC class Power type Steam Builder Baldwin Locomotive Works Serial number 15055 Build date 1896 Configuration 2-8-0 UIC classification 1'D Length 51 ft 8 in (15.75 m) Locomotive & tender
62.8 long tons (63.8 t) Boiler pressure 200 psi (1.4 MPa) Career Wellington and Manawatu Railway
New Zealand Railways Department
Number in class 1 Number WMR 16
Retired July 1930
The OC class, built by the Baldwin Locomotive Works for the Wellington and Manawatu Railway (WMR) in New Zealand, consists of a solitary steam locomotive. Ordered in 1896 as an externally similar but more powerful version of the OA class locomotive ordered in 1894, it entered service in June 1897 as No. 16. It was a Vauclain compound locomotive.
In 1908, the WMR and its locomotive fleet was purchased by the New Zealand Railways Department (NZR) and incorporated into the national rail network, and although No. 16 bore a likeness to members of the O class, it was sufficiently different to warrant separate classification. Technical differences were sufficient that it was not classified with the visually similar WMR No. 13/NZR OA 457, and accordingly it became OC 458. It is known to have operated on the line from the Hutt Valley through the Rimutaka Range to the western end of the Rimutaka Incline, and its final depot was at Cross Creek at the eastern end of the Rimutaka Incline in the Wairarapa. It was withdrawn from service in July 1930.
- Baldwin Steam Trust's page of Baldwin locomotives built for the WMR - includes OC class
- Drawing of an OA/OC class locomotive from Derek Brown
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