| NZR Q Class (1878) | |
| Builder: | Rogers |
| Builddate: | 1878 |
| Totalproduction: | 2 |
| Whytetype: | 2-4-4T |
| Driverdiameter: | 483NaN3 |
| Weightondrivers: | 14.21NaN1 |
| Locoweight: | 291NaN1 |
| Fueltype: | Coal |
| Boilerpressure: | 1300NaN0 |
| Firearea: | 8square feet |
| Totalsurface: | 424square feet |
| Cylindercount: | Two, outside |
| Cylindersize: | 11x |
| Tractiveeffort: | 40622NaN2 |
| Operatorclass: | Q |
| Operator: | Rakaia & Ashburton Forks Railway, NZR |
| Numinclass: | 2 |
| Fleetnumbers: | 17, 51 |
| Firstrundate: | August 1879 |
| Lastrundate: | 1897 |
| Disposition: | Both scrapped |
The NZR Q class were a pair of 2-4-4T type tank engines built by Rogers Locomotive and Machine Works in New Jersey. They were similar, in appearance, to the earlier K class of the same manufacturer and were purchased by the Rakaia & Ashburton Forks Railway Company[1] for working their newly constructed railway to Methven from Rakaia, which later became the Methven Branch.