South Australian Railways Y class
{{Short description|South Australian Railways narrow-gauge steam locomotive}}
{{Use dmy dates|date=October 2020}}
{{Use Australian English|date=May 2011}}
{{Infobox locomotive
|name = South Australian Railways Y / Yx class
|powertype = Steam
|image = South Australian Railways Y class loco no97 at Jamestown, Oct 1967 (John Masson) cropped.jpg
|caption = Y97 on the turntable at Jamestown during a railway enthusiast trip in October 1967
|designer =
|builder = Beyer, Peacock & Co. (50)
Islington Railway Workshops (2)
James Martin & Co (77)
|ordernumber =
|serialnumber =
|buildmodel =
|builddate = 1885–1898
|totalproduction = 129
|rebuilder =
|rebuilddate =
|numberrebuilt =
|whytetype = 2-6-0
|gauge = {{Track gauge|1067mm|comma=off|lk=on}}
|leadingdiameter =
|driverdiameter =
|trailingdiameter =
|minimumcurve =
|wheelbase =
|length = {{convert|39|ft|3|in|mm|0|abbr=on}}
|width =
|height = {{convert|3512|mm|ftin|frac=8|disp=flip|abbr=on|comma=off}}
|axleload =
|weightondrivers =
|locoweight =
|tenderweight =
|locotenderweight = {{convert|47|LT|15|Lcwt|lb t|abbr=on|disp=br()|lk=on}}
{{convert|47|LT|15|Lcwt|ST|abbr=on|disp=br()}}
|tendertype =
|fueltype = Coal
|fuelcap = {{convert|4|LT|10|Lcwt|lb t|abbr=on|disp=br()|lk=on}}
{{convert|4|LT|10|Lcwt|ST|abbr=on|disp=br()}}
|watercap = {{convert|1600|impgal|disp=br()|comma=off}}
|tendercap =
|sandcap =
|boiler =
|boilerpressure = {{convert|145|lbf/in2|MPa|2|abbr=on}}
|feedwaterheater =
|firearea =
|tubearea =
|fluearea =
|tubesandflues =
|fireboxarea =
|totalsurface =
|superheatertype =
|superheaterarea =
|cylindercount = 2 outside
|cylindersize = {{convert|14.5|x|20|in|mm|0|abbr=on|disp=br()}}
|frontcylindersize=
|rearcylindersize =
|hpcylindersize =
|lpcylindersize =
|valvegear =
|valvetype =
|valvetravel =
|valvelap =
|valvelead =
|transmission =
|maxspeed =
|poweroutput =
|tractiveeffort = {{convert|13289|lbf|kN|2|abbr=on}}
|factorofadhesion =
|trainheating =
|locobrakes =
|locobrakeforce =
|trainbrakes =
|safety =
|operator = South Australian Railways and others
|operatorclass = Y and Yx
|powerclass =
|numinclass =
|fleetnumbers = Y22, Y38, Y43, Y49, Y57-Y106, Y1108-Y142, Y147-Y179, Y195
|officialname =
|nicknames =
|axleloadclass =
|locale =
|deliverydate =
|firstrundate =
|lastrundate =
|retiredate =
|withdrawndate =
|preservedunits = Y12, Y71, Y82, Yx86, Y97, Y109, Yx135, Yx141, Yx176
|restoredate =
|scrapdate =
|currentowner =
|disposition = 9 preserved, 121 scrapped}}
The South Australian Railways Y class was a class of narrow gauge steam locomotives operated by the South Australian Railways.
History
The Y class were numerically the largest class of steam locomotive operated by the South Australian Railways (SAR). With a Mogul (2-6-0) wheel arrangement widely used in Australia at the time, 129 were built between 1885 and 1898. Beyer, Peacock & Co, Manchester built 50, James Martin & Co of Gawler 77, and the SAR's Islington Railway Workshops 2. They operated across the SAR's narrow gauge network. Between 1904 and 1924, 48 were fitted with new Belpaire boilers and reclassified as the Yx class.{{cite book|last=Turner|first=Jim|title=Australian Steam Locomotives 1896–1958|year=1997|publisher=Kangaroo Press|location=Kenthurst|isbn=086417778X|page=9}}{{cite book|last=Oberg|first=Leon|title=Locomotives of Australia 1850s-2010|year=2010|publisher=Rosenberg Publishing|location=Dural|isbn=9781921719011|pages=65/66}}
They were part of what became almost an Australian {{Track gauge|1067mm|comma=off}} standard, as locomotives of similar design served in large numbers as the Silverton Tramway Y class, Tasmanian Government Railways C class and Western Australian Government Railways G class, and also in Queensland and on the Emu Bay Railway and North Australia Railway.{{cite web |url= http://www.nrm.org.au/collections/31-search-our-collections/71-locomotive-y97|title=Locomotive Y97 |author=|date=2015 |website=National Railway Museum |access-date=27 September 2022 }}
Some were sold for further service to railway construction companies while others saw further service on the timber railway lines of Western Australia. During World War II, 18 were sold to the Commonwealth Railways for use on the North Australia Railway as the Nfb class. Seven of these were sold in 1948 to the Tasmanian Government Railways, but only four entered service (as F1–F4).{{cite magazine|title=Steam locomotives of the Tasmanian Government Railways and its constituents |date=March 2014 |magazine=Australian Railway History |issue=917 |location=Redfern, NSW |publisher=Australian Railway Historical Society, New South Wales Division |issn=1449-6291 |page=14}}
Preserved locomotives
{{As of|2022}}, there were 10 preserved Y and Yx class locomotives (of which Yx141 was operational), as follows:
{{clear}}
References
{{Reflist}}
External links
{{commons category-inline|South Australian Railways Y class locomotives}}
{{South Australian Railways locos|state=expanded}}
Category:Beyer, Peacock locomotives
Category:Islington Railway Workshops locomotives