View source for NZR OC class

{{Short description|New Zealand steam locomotive}}
{{Use New Zealand English|date=July 2024}}
{{Use dmy dates|date=July 2019}}
{{DISPLAYTITLE:NZR O<sup>C</sup> class}}
{{Infobox locomotive
|name = NZR O<sup>C</sup> class
|powertype = Steam
|image = Oc Class steam locomotive NZR 458, 2-8-0 type. ATLIB 276930.png
|caption = O<sup>C</sup> class [[2-8-0]] steam locomotive [[New Zealand Railways Department|NZR]] number 458
|builddate = 1896
|builder = [[Baldwin Locomotive Works]]
|serialnumber = 15055
|whytetype = [[2-8-0]]
|uicclass = 1'D
|gauge = {{Track gauge|42in|lk=on}}
|locotenderweight = {{convert|62.8|LT|t ST|abbr=on}}
| weightondrivers  = {{convert|36.7|LT|t ST|abbr=on}}
|length = {{convert|51|ft|8|in|2|abbr=on}}
|boilerpressure = {{convert|200|psi|kPa|0|abbr=on}}
|tractiveeffort = {{convert|15110|lbf|kN|2|abbr=on}}
| firearea         = {{convert|16.7|sqft|m2|abbr=on}}
| totalsurface     = {{convert|1050|sqft|m2|abbr=on}}
| hpcylindersize   = {{convert|11|x|20|in|mm|0|abbr=on}}
| lpcylindersize   = {{convert|18|x|20|in|mm|0|abbr=on}}
|operator = [[Wellington and Manawatu Railway]]<br />[[New Zealand Railways Department]]
|fleetnumbers = WMR 16<br />NZR 458
|numinclass = 1
|retiredate = July 1930
}}

The '''O<sup>C</sup> class''', built by the [[Baldwin Locomotive Works]] for the [[Wellington and Manawatu Railway]] (WMR) in [[New Zealand]], consists of a solitary [[Locomotive#Steam|steam locomotive]]. Ordered in 1896 as an externally similar but more powerful version of the [[NZR Oa class|O<sup>A</sup> class]] locomotive ordered in 1894, it entered service in June 1897 as No. 16. It was a [[Vauclain compound|Vauclain]] [[compound locomotive]].{{sfn|Palmer|Stewart|1965|p=94}}

In 1908, the WMR and its locomotive fleet was purchased by the [[New Zealand Railways Department]] (NZR) and incorporated into the [[Rail transport in New Zealand|national rail network]], and although No. 16 bore a likeness to members of the [[NZR O class|O class]], it was sufficiently different that it warranted separate classification.  Technical differences were sufficient that it was not classified with the visually similar WMR No. 13/NZR O<sup>A</sup> 457, and it became O<sup>C</sup> 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 It was withdrawn from service in July 1930.

== Bibliography ==
{{refbegin}}
* {{NZR Steam Locomotive}}
* {{Palmer & Stewart}}
* {{When Steam Was King}}
{{refend}}


== References ==
{{reflist}}

==External links==
*[https://web.archive.org/web/20120722041108/http://nzrplans.orconhosting.net.nz/images/wmr7.jpg Drawing of an O<sup>A</sup>/O<sup>C</sup> class locomotive (archived)] from Derek Brown

{{NZR Locomotives}}

[[Category:Steam locomotives of New Zealand|Oc class]]
[[Category:1′D locomotives]]
[[Category:Baldwin locomotives]]
[[Category:Vauclain compound locomotives]]
[[Category:Scrapped locomotives]]
[[Category:Railway locomotives introduced in 1896]]
[[Category:Individual locomotives of New Zealand]]


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