# NZR DSB class

> Mediated Wiki article. Canonical URL: https://mediated.wiki/source/NZR_DSB_class
> Markdown URL: https://mediated.wiki/source/NZR_DSB_class.md
> Source: https://en.wikipedia.org/wiki/NZR_DSB_class
> Source revision: 1321652070
> License: Creative Commons Attribution-ShareAlike 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/)

New Zealand DSB class Type and origin Power type Diesel-Mechanical/Hydraulic Builder Drewry Car Co (25), Mitsubishi Heavy Industries (3) Build date 1954-1967 Specifications Configuration: ​ • AAR 0-6-0 Gauge 1,067 mm (3 ft 6 in) Length Drewry: 8.8 m (28 ft 10 in) Mitsubishi:8.5 m (27 ft 11 in) Loco weight 37 tonnes (36 long tons; 41 short tons) Prime mover Drewry: National M4AA7; later: Caterpillar D343TA Mitsubishi: Caterpillar D343TA Performance figures Maximum speed Drewry: 39 km/h (24 mph); later: 57 km/h (35 mph) Mitsubishi: 56 km/h (35 mph) Power output 195 kW (261 hp)later: 263 kW (353 hp) Mitsubishi:280 kW (380 hp) Career Operators NZGR, New Zealand Railways Corporation Number in class 28 Numbers TMS numbers: 1003-1290 Road numbers: 300-327 Locale All of New Zealand First run August 1954 Last run April 1989 Current owner Avon Engineering (1), Mainline Steam Heritage Trust (1) Disposition 1 preserved, 27 scrapped

The **NZR DSB class locomotive**[nb 1] is a type of shunting locomotive introduced to [New Zealand's national rail network](/source/Rail_transport_in_New_Zealand) in 1954 by [New Zealand Railways](/source/New_Zealand_Railways_Department) (NZR).[1]

## Introduction

In 1950, NZR placed an order for 25 DSB shunting locomotives.[1] They were built by the [Drewry Car Co.](/source/Drewry_Car_Co.) between 1954 and 1956.[1] The first three DSB class locomotives were commissioned in August 1954. The DSB are a larger and more powerful locomotive than the [DS](/source/NZR_DS_class) and [DSA classes](/source/NZR_DSA_class) and were used all over [New Zealand](/source/New_Zealand). A second batch of three locomotives built by Mitsubishi Heavy Industries was introduced in 1967.[2] Included with the three Mitsubishi DSB class were two additional locomotives for the [Ohai Railway Board](/source/Ohai_Railway_Board) at Ohai, Southland.[*[citation needed](https://en.wikipedia.org/wiki/Wikipedia:Citation_needed)*]

The Drewry type B-2 had a cover-plate over the locomotive's [jackshaft](/source/Jackshaft) to prevent staff from being caught by the jackshaft while riding on the cab steps.

By the end of their lives, 12 DSBs were repainted in the "*International Orange*" livery.

## Withdrawal

In line with NZR's policy of rationalising locomotive classes, the DSB class was entirely withdrawn by the end of the 1980s.[2]

As of July 2014 only one DSB class has been preserved, DSB313 was purchased in January 1991 by the [Mainline Steam Heritage Trust](/source/Mainline_Steam_Heritage_Trust) for shunting at their [Parnell](/source/Parnell%2C_New_Zealand) depot.[3] However, both of the Ohai Railway Board's DSB-class equivalents No.1 and No.2 have been preserved, No.1 at [Ocean Beach Railway](/source/Ocean_Beach_Railway), Dunedin, and No.2 at [Steam Incorporated](/source/Steam_Incorporated), Paekakariki. [*[citation needed](https://en.wikipedia.org/wiki/Wikipedia:Citation_needed)*]

## References

### Footnotes

1. **[^](#cite_ref-DSB_1-0)** Following the introduction of [TMS](/source/New_Zealand_Railways_Department#Traffic_Monitoring_System) in 1979, the class classification was capitalised, whereas previously the second letter was a smaller capital letter, that is DSB

### Citations

1. ^ [***a***](#cite_ref-FOOTNOTEPalmer_&_Stewart1965147_2-0) [***b***](#cite_ref-FOOTNOTEPalmer_&_Stewart1965147_2-1) [***c***](#cite_ref-FOOTNOTEPalmer_&_Stewart1965147_2-2) [Palmer & Stewart 1965](#CITEREFPalmer_&_Stewart1965), p. 147.

1. ^ [***a***](#cite_ref-FOOTNOTEParsons200226_3-0) [***b***](#cite_ref-FOOTNOTEParsons200226_3-1) [Parsons 2002](#CITEREFParsons2002), p. 26.

1. **[^](#cite_ref-4)** "Railfan". Vol. 2, no. 2. Triple M Publications. March 1996. [ISSN](/source/ISSN_(identifier)) [1173-2229](https://search.worldcat.org/issn/1173-2229).

### Bibliography

- Parsons, David (2002). [*New Zealand Railway Motive Power 2002*](http://railsoc.org.nz/publication-catalogue/). [New Zealand Railway and Locomotive Society](/source/New_Zealand_Railway_and_Locomotive_Society). p. 64. [ISBN](/source/ISBN_(identifier)) [978-0-908573-78-3](https://en.wikipedia.org/wiki/Special:BookSources/978-0-908573-78-3).

- Palmer, A.N.; Stewart, W.W. (1965). *Cavalcade of New Zealand Locomotives*. [A H. & A W. Reed](/source/Reed_Publishing). [ISBN](/source/ISBN_(identifier)) [9780207945007](https://en.wikipedia.org/wiki/Special:BookSources/9780207945007).

v t e Rail vehicles of New Zealand Diesel locomotives Mainline DA (inc. DAA, DAR) DB (inc. DBR) DC (inc. DCP) DF (English Electric) DF (General Motors) inc. DFT, DFB, DFM DG (inc. DH of 1956) DI DJ DL DM DQ and QR DX (inc. DXB, DXC, DXR) Shunt DE DH of 1978 DS DSA DSB DSC DSG DSH (on order) DSJ TR Electric locomotives 1500 V DC EA (later EO of 1968) EC ED EO of 1923 EW 25 kV AC EF Battery E EB Diesel multiple units ADK/ADB class diesel multiple unit ADL/ADC class diesel multiple unit Electric multiple units 1500 V DC (Wellington) "English Electric" DM (inc. D trailers) "Ganz Mavag" EM (inc. ET trailers) "Matangi" FP (inc. FT trailers) "Tūhono" BEMU (on order) 25 kV AC (Auckland) AM (inc. AMP, AMT, AMA) Railcars RM class 88 seater (also known as Fiats or twinsets) Clayton steam railcar Edison battery-electric railcar Red Terror railcar Midland railcar Leyland experimental petrol railcar McEwan Pratt petrol railcar Model T Ford railcar Sentinel-Cammell steam railcar Silver Fern railcar Standard railcar Thomas Transmission railcar Vulcan railcar Wairarapa railcar Westinghouse railcar Others A 88 Buckhurst petrol carriage Steam locomotives A of 1873 A of 1906 (inc. AD) AA AB B of 1874 B of 1899 BA BB BC C of 1873 C of 1930 D of 1874 D of 1929 E of 1872 & 1875 E of 1906 F FA (inc. FB) G of 1874 G Garratt of 1928 (inc. Pacific rebuild) H J of 1874 J of 1939 JA JB K of 1877 K of 1932 KA KB L LA M N NA NC O OA OB OC P of 1876 P of 1885 Q of 1878 Q of 1901 R S T U UA UB UC UD V W WA WAB WB WD WE WF WG WH WJ WS WW X Y Locomotive hauled carriages 50-foot carriage 56-foot carriage AC class (Grassgrubs) ex-British Rail Mark 2 carriage AK carriage FM class guards van SX carriages Track evaluation, cranes, and maintenance ETM class track evaluation car EL class rail cranes ETM class rail maintenance equipment Locomotives of New Zealand Rail transport in New Zealand Railway preservation in New Zealand.

---
Adapted from the Wikipedia article [NZR DSB class](https://en.wikipedia.org/wiki/NZR_DSB_class) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/NZR_DSB_class?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.