New Zealand DSB class |
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Type and origin |
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Power type | Diesel-Mechanical/Hydraulic |
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Builder | Drewry Car Co (25), Mitsubishi Heavy Industries (3) |
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Build date | 1954-1967 |
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Specifications |
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Configuration:
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• AAR | 0-6-0 |
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Gauge | 1,067 mm (3 ft 6 in) |
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Length | Drewry: 8.8 m (28 ft 10 in) Mitsubishi:8.5 m (27 ft 11 in) |
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Loco weight | 37 tonnes (36 long tons; 41 short tons) |
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Prime mover | Drewry: National M4AA7; later: Caterpillar D343TA Mitsubishi: Caterpillar D343TA |
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Performance figures |
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Maximum speed | Drewry: 39 km/h (24 mph); later: 57 km/h (35 mph) Mitsubishi: 56 km/h (35 mph) |
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Power output | 195 kW (261 hp)later: 263 kW (353 hp) Mitsubishi:280 kW (380 hp) |
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The NZR DSB class locomotive[nb 1] is a type of shunting locomotive introduced to New Zealand's national rail network in 1954 by New Zealand Railways (NZR).
Introduction
In 1950, NZR placed an order for 25 DSB shunting locomotives. They were built by the Drewry Car Co. between 1954 and 1956. The first three DSB class locomotives were commissioned in August 1954. The DSB are a larger and more powerful locomotive than the DS and DSA classes and were used all over New Zealand. A second batch of three locomotives built by Mitsubishi Heavy Industries was introduced in 1967.
The Drewry type B-2 had a cover-plate over the locomotive's 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In line with NZR's policy of rationalising locomotive classes, the DSB class was entirely withdrawn by the end of the 1980s.
As of July 2014 only one has been preserved, DSB313 was purchased in January 1991 by the Mainline Steam Heritage Trust for shunting at their Parnell depot.[3]
References
- ^ Following the introduction of TMS in 1979, the class classification was capitalised, whereas previously the second letter was a smaller capital letter, that is DSB
Citations
- ^ "Railfan". Vol. 2, no. 2. Triple M Publications. March 1996. ISSN 1173-2229.
Bibliography
Rail vehicles of New Zealand
Diesel locomotives | |
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Electric locomotives | 1500 V DC | - EA (later EO of 1968)
- EC
- ED
- EO of 1923
- EW
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25 kV AC | |
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Battery | |
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Diesel multiple units | |
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Electric multiple units | |
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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
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Others | |
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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
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Locomotive hauled carriages | |
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Track evaluation, cranes, and maintenance | |
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