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Victorian Railways W class

(Redirected from New South Wales 71 class locomotive)

The W class are a diesel-hydraulic shunting locomotive ordered and operated by the Victorian Railways of Australia.

Victorian Railways W class
El Zorro locomotives W241 (blue) and W244 (orange) on works trains in Melbourne
Type and origin
Power typeDiesel-hydraulic
BuilderTulloch Limited, Rhodes, New South Wales[1]
Specifications
Gauge1,600 mm (5 ft 3 in)
Length9.34 m (30 ft 8 in)
Loco weight49 t (48 long tons; 54 short tons)
Prime moverDetroit Diesel 12V-149
Engine typeV12 diesel
Performance figures
Maximum speed32 km/h (20 mph)
Power output360 kW (480 hp)
Career
Number in class27
First run1959
Disposition5 preserved, 22 scrapped

History

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In mid 1957, the Victorian Railways called for tenders for a fleet of 25 diesel-hydraulic locomotives rated at 500 hp (370 kW). Tulloch, based in Rhodes, New South Wales, won the contract with an offer for West German-style locomotives, using a Mercedes V12 diesel engine developing 660 hp (490 kW) which was coupled to a Krupp 2W1D46 hydraulic transmission powering the centre axle, with the leading and trailing axles powered via connecting rods. All 25 engines entered service in the year from December 1959.[2]

Tulloch expected a repeat order for a further 25 units from the Victorian Railways, and also built a standard gauge version numbered 7101 as a demonstrator unit for the New South Wales Railways. However, the latter system rejected the design as unsuitable, so that unit was sold to the Victorian Railways and used for construction trains on the Albury NSW to Melbourne standard gauge line. After that project was completed, it became one of the standard gauge shunting units operating between South Dynon and Spencer Street station. The final engine, W267, had been built in anticipation of the repeat order that never eventuated - while the contract was written, it was never signed.[3] Instead, the final engine was converted to standard gauge and shared duties with W266.

Engines were fitted with controls on both sides of the centre console, although that feature was removed not long after delivery.[4][5] The engines were initially rostered on local passenger services to Werribee and trialled on Bacchus Marsh runs, but with the low speed limit of 40 mph (65 km/h) and relatively little power, they were unable to keep to the timetable to the latter.

The engines proved incredibly unpopular, due to problems with ride quality and engine reliability, and a transmission change needed to achieve mainline running speeds. The high gear setting was removed early on and the class relegated to shunting duties in an attempt to better utilise the fleet. However, the cab profile made visibility a problem in yards, and engine crews had to lean out the side to observe shunting instructions. The cab design also provided no shelter from the weather in storms or on hot days. Common failures included seized transmissions, oil leaking onto the shunters' steps creating a slip hazard, and failed engine blocks.[6]

Between 1973 and 1977, at least ten engines, starting with W249,[7] had the Mercedes engine removed and replaced with General Motors diesel units. Engines after the first had different exhaust arrangements, but all those refitted could be identified externally by a second exhaust stack at the end of the long hood, with the original adjacent to the driving cabin plated over.[8] The alterations raised the engine hood by 208mm but did not replace the original transmission or gearbox.[9]

The class was generally allocated to Ballarat, Geelong and Melbourne for short shunting trips, and one each at Ararat, Bendigo and Seymour, explicitly for yard work only. However, on the odd occasion, Seymour-based W241 was used on the Shepparton goods, and also ran out to Rushworth and Colbinabbin. It also made it to Benalla a few times.[10]

New South Wales 71 class locomotive

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7101 at Delec Locomotive Depot in 1961
Type and origin
Power typeDiesel-hydraulic
BuilderTulloch Limited, Rhodes
Build date1960
Total produced1
Specifications
Configuration:
​
 • UICC
Gauge1,435 mm (4 ft 8+1⁄2 in) standard gauge
Length9.34 m (30 ft 8 in)
Fuel typeDiesel
Prime moverMercedes-Benz
Engine typeV12
Cylinders12
Cylinder size(?)
TransmissionHydraulic
Performance figures
Maximum speed32 km/h (20 mph)
Power output360 kW (480 hp)
Career
OperatorsNSW Department of Railways
Number in class1
Numbers7101
First run11 November 1960
Retired21 June 1961
DispositionConverted to W266

The 71 class was a class of diesel locomotive operated by the New South Wales Department of Railways in Australia.

Powertrain

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The locomotive was of the 0-6-0 wheel arrangement, fitted with a 12-cylinder Mercedes-Benz engine, Krupp hydraulic transmission and axle-gear and Behr hydraulic cooling equipment.

History

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Having just completed 25 1,600 mm (5 ft 3 in) 650 hp (480 kW) diesel-hydraulic shunting W class locomotives for the Victorian Railways, Tulloch Limited, with a view to receiving an order for similar units, offered the NSW Department of Railways a similar 1,435 mm (4 ft 8+1⁄2 in) standard gauge version in 1960 for a 12-month testing period. The offer was accepted and the unit was taken into service on 11 November 1960, numbered 7101. Although allocated to Delec Locomotive Depot, all servicing was done at Tulloch Limited. No. 7101 was used on local transfer and shunting trips in the Sydney metropolitan area. It operated under conditions similar to the 70-class then in operation.

In mid-1961, Tulloch Limited was experiencing operating difficulties and was unable to fulfil its obligations in regard to the hiring. 7101 was returned on 21 June 1961 and sold to Victorian Railways, who used the locomotive from 4 July on the construction of the North East standard gauge line between Albury and Melbourne.[11] It was repainted in the same colours as the 25 broad gauge units and renumbered W266.[12]

Locomotives

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Table details are drawn from Newsrail, December 1982 p. 311.

Locomotive Builders No. Named Built In Service Upgraded engine Current/Last Owner 1982 status[13] Current status Notes
W241 006 Peter Steward 1959 1959-12-21 Y Mornington Railway At Seymour under repairs Preserved - Operational Delivered 2015-09-20
W242 007 1960-01 1960-01-30 N Victorian Railways At Ballarat Scrapped
W243 008 1960-02 1960-02-26 N Newport Railway Museum At Ballarat Preserved - Static Has Mercedes engine fitted.
W244 009 1960-03 1960-03-14 Y Victrack At Newport Stored Ex 707 Operations, Now Returned to Victrack for Re Allocation after being Deemed Surplus of Use.
W245 010 1960-03 1960-04-01 Y Victorian Railways Scrapped 1982-09-30
W246 011 1960-04 1960-25-04 N Victorian Railways At Ballarat Workshops under repairs Scrapped
W247 012 1960-05 1960-05-09 N Victorian Railways At Ballarat as workshops pilot Scrapped 1987-07-xx[14]
W248 013 1960-05 1960-05-22 N Victorian Railways At Ballarat Scrapped 1983-04-26[15]
W249 014 1960-05 1960-05-30 Y Victorian Railways At Bendigo Scrapped 1987-07-xx[16]
W250 015 1960-06 1960-06-10 Y Yarra Valley Tourist Railway At Ballarat under repairs Preserved - Operational
W251 016 1960-06 1960-06-20 Victorian Railways Scrapped 1982-09-30
W252 017 1960-06 1960-06-30 Y Victorian Railways At Ballarat under repairs Scrapped
W253 018 1960-07 1960-07-13 N Victorian Railways At Ballarat Workshops under repairs Scrapped
W254 019 1960-07 1960-07-23 Victorian Railways Scrapped 1982-06-01.
W255 020 1960-07 1960-08-02 Y Newport Railway Museum At Newport as pilot Preserved - Static General Motors Engine fitted.
W256 022 1960-08 1960-08-13 Victorian Railways Scrapped 1982-03-24[17]
W257 023 1960-08 1960-08-26 Y Victorian Railways At Ballarat Workshops under repairs Scrapped
W258 024 1960-08 1960-09-06 N Victorian Railways At Geelong Scrapped
W259 025 1960-09 1960-09-28 Y Victorian Railways At Bendigo as workshops pilot Scrapped 1987-07-xx[18]
W260 026 1960-09 1960-10-04 N RLG At Ballarat as pilot Scrapped 2010-xx-xx[19] Scrapped at the Seymour Rail Heritage Centre. Was the last remaining unit (aside from W243) fitted with an original Mercedes engine.[20] Was displayed at Tocumwal.[21]
W261 027 1960-10 1960-10-21 N Victorian Railways Scrapped 1982-06-01
W262 029 1960-11 1960-11-18 Y Victorian Railways At Geelong Scrapped 1987-07-xx[22]
W263 030 1960-11 1960-11-27 N Victorian Railways At Ararat Scrapped 1987-07-xx[23]
W264 032 1960-12 1960-12-10 N Victorian Railways Scrapped 1982-09-30
W265 031 1960-12 1960-12-22 N Victorian Railways Scrapped 1981-12-24
W266 028 1960-10 1961-07-06 Y Victorian Railways Scrapped 1982-06-01 Standard gauge pilot. Ex NSW 7101
W267 036 1961-11 1961-12-18 N Victorian Railways Scrapped 1980-05-??. Was broad gauge until 1962-02-10.

See also

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References

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  1. ^ W class diesel at victorianrailways.net
  2. ^ Jehan, D. 2015, A History of Tulloch Engineers and Manufacturers Pyrmont & Rhodes 1883-1974, Eveleigh Press, pp.174-177, ISBN 978 1 876568 83 2
  3. ^ Jehan, D. 2015, A History of Tulloch Engineers and Manufacturers Pyrmont & Rhodes 1883-1974, Eveleigh Press, pp.174-177, ISBN 978 1 876568 83 2
  4. ^ Jehan, D. 2015, A History of Tulloch Engineers and Manufacturers Pyrmont & Rhodes 1883-1974, Eveleigh Press, pp.174-177, ISBN 978 1 876568 83 2
  5. ^ "W class locomotives". victorianrailways.net. Retrieved 17 March 2024.
  6. ^ Motive Power, May/June 2018 (No.117), pp.36-38
  7. ^ Motive Power, May/June 2018 (No.117), pp.36-38
  8. ^ "W class locomotives". victorianrailways.net. Retrieved 17 March 2024.
  9. ^ Victorian Railways staff newsletter, May 1973
  10. ^ Information from former Depot Foreman Seymour.
  11. ^ Turton, Keith W (1973). Six and a Half Inches From Destiny. Australian Railway Historical Society (Victorian Division). p. 102. ISBN 0-858490-12-9.
  12. ^ The Railway News June 1968 page 11
  13. ^ Newsrail, December 1982 p.311
  14. ^ Medlin (2004) p.29
  15. ^ Medlin (2004) p.29
  16. ^ Medlin (2004) p.29
  17. ^ Medlin (2004) p.30
  18. ^ Medlin (2004) p.30
  19. ^ Motive Power, May/June 2018 (No.117), pp.36-38
  20. ^ Motive Power, May/June 2018 (No.117), pp.36-38
  21. ^ Medlin (2004) p.30
  22. ^ Medlin (2004) p.30
  23. ^ Medlin (2004) p.31
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