Victorian Railways W class

The W class are a diesel-hydraulic shunting locomotive ordered and operated by the Victorian Railways of Australia.
==History==
In mid 1957, the Victorian Railways called for tenders for a fleet of 25 diesel-hydraulic locomotives rated at 500 hp. 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 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.
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 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. 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. The engines were initially rostered on local passenger services to Werribee and trialed on Bacchus Marsh runs, but with the low speed limit of 40 mph 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 utilize 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.
Between 1973 and 1977, at least ten engines, starting with W249, 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. The alterations raised the engine hood by 208mm but did not replace the original transmission or gearbox.
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.
==New South Wales 71 class locomotive==
The 71 class was a class of diesel locomotive operated by the New South Wales Department of Railways in Australia.
===Powertrain===
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===
Having just completed 25 1600mm 650 hp 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 1435mm 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. It was repainted in the same colours as the 25 broad gauge units and renumbered W266.
==Locomotives==
Table details are drawn from Newsrail, December 1982 p. 311.
Locomotive	Builders No.	Named 	Built 	In Service	Upgraded engine	Current/Last Owner 	1982 status 	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 	
W244 	009 	 	1960-03	1960-03-14	Y 	Victrack 	At Geelong 	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 	
W248 	013 	 	1960-05	1960-05-22	N 	Victorian Railways 	At Ballarat 	Scrapped 1983-04-26 	
W249 	014 	 	1960-05	1960-05-30	Y 	Victorian Railways 	At Bendigo 	Scrapped 1987-07-xx 	
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 	
W256 	022 	 	1960-08	1960-08-13	 	Victorian Railways 	 	Scrapped 1982-03-24 	
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 	
W260 	026 	 	1960-09	1960-10-04	N 	RLG 	At Ballarat as pilot 	Scrapped 2010-xx-xx 	Scrapped at the Seymour Rail Heritage Centre. Was the last remaining unit (aside from W243) fitted with an original Mercedes engine. Was displayed at Tocumwal.
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 	
W263 	030 	 	1960-11	1960-11-27	N 	Victorian Railways 	At Ararat 	Scrapped 1987-07-xx 	
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.
==Model railways==
Brass models of the W Class have been produced in HO Scale by Trainbuilder, including five each of the original (241-243, 251 and 265) and modified (241, 245, 257, 262 and 266), plus W250 as preserved, 7101 in Indian Red and W244 in the faux-V/Line livery.
As of mid-2019, IDR Models is producing ready-to-run HO Scale models of the class in both original and re-engined forms.
==Gallery==
File:W255.jpg
==External links==
*victorianrailways.net - W class diesel hydraulic locomotives
*Vicrailways - W class
Category:Victorian Railways
Category:New South Wales Locomotives
Category:Victorian Locomotives
Category:Diesel-hydraulic locomotives
Category:Australia
Category:Australian Locomotives
Category:Switcher locomotives
Category:Diesel switchers
Category:NSWGR Trains
Category:Locomotives
Category:Restored locomotives