'Onahau'
⇒ Click Here to Return to the Diesel Locomotives Page ⇐| Year built | 1990s |
| Builder | Ian Arnott |
| Type/Class | DH |
| Wheel Arrangement | B-B |
| Gauge | 2ft 0in |
| Number | DH 4334 / DH 3443 / 1145 BRRS #4 |
| Length | 2495 |
| Height | 2365 |
| Width | 900 |
| Engine | Nissan CD, water cooled, indirect injection diesel |
| Transmission | Hydraulic pump driving 1x hydraulic motor per bogie with chain drive to axles |
| Braking | Loco braking via hand lever, automotive hydraulic system with 1x disc brake per bogie No train braking, small 12V compressor for sanding only |
| Couplers | Pin and link mounted on bogies |
Built by engineer Ian Arnott to run on a short railway from a jetty up to his home in Onahau Bay, Marlborough Sounds. Loco and railway went out of use for many years after the passing of Ian. In 2012 the family donated "Onahau" and its railway to Blenheim Riverside Railway Society.
2012-8-21 Loco retrieved from Marlborough Sounds. Loco suspension modified, entered service on track mowing and spraying duties
2014 - Onahau Bay railway removed by BRR including bogie flat deck wagon
