| 词条 | New South Wales Z23 class locomotive |
| 释义 |
|name = New South Wales Z23 Class |powertype = Steam |image = NSWGR O.446 Class Locomotive.jpg |caption = O.446 Class Locomotive |designer = |builder = Baldwin Locomotive Works[1] |ordernumber = |serialnumber = |buildmodel = |builddate = |totalproduction = 12[1] |rebuilder = |rebuilddate = |numberrebuilt = |whytetype = 4-6-0[1] |uicclass = |gauge = {{track gauge|4ft8.5in}}[1] |leadingdiameter = |driverdiameter = 5 ft 1 in[1] |trailingdiameter = |minimumcurve = |wheelbase = |length = |width = |height = |axleload = |weightondrivers = |locoweight = |tenderweight = |locotenderweight = 90.37 tons[1] |tendertype = |fueltype = |fuelcap = |watercap = |tendercap = |sandcap = |boiler = |boilerpressure = 160 lb [1] |feedwaterheater = |firearea = 27.7 sq.ft[1] |tubearea = |fluearea = |tubesandflues = |fireboxarea = |totalsurface = |superheatertype = |superheaterarea = |cylindercount = |cylindersize = 21 x 24[1] |frontcylindersize= |rearcylindersize = |hpcylindersize = |lpcylindersize = |valvegear = |valvetype = |valvetravel = |valvelap = |valvelead = |transmission = |maxspeed = |poweroutput = |tractiveeffort = 22,209 lb[1] |factorofadhesion = |trainheating = |locobrakes = |locobrakeforce = |trainbrakes = |safety = |operator = |operatorclass = |powerclass = |numinclass = |fleetnumbers = |officialname = |nicknames = |axleloadclass = |locale = |deliverydate = |firstrundate = |lastrundate = |retiredate = |withdrawndate = 1933-1946 |preservedunits = |restoredate = |scrapdate = |currentowner = |disposition = All scrapped }} The Z23 class (formerly O.446 class) was a class of steam locomotives built for the New South Wales Government Railways in Australia.[2][3][4] Royal CommissionThese locomotives were said to be too heavy and too wide at the cylinders, and were the subject of a Royal Commission.[5] Withdrawal2305 was the first withdrawn in May 1933. By 1941 only six were left, with the last, 2304, being withdrawn in September 1946.[1] None has survived onto preservation. See also
References1. ^1 2 3 4 5 6 7 8 9 10 {{cite book|last=Oberg|first=Leon|title=Locomotives of Australia|year=1975|isbn=0 589 07173 4|page=73}} {{Commons category|New South Wales Z23 class locomotives}}{{NSWLocos}}{{Steam-loco-stub}}{{NewSouthWales-rail-transport-stub}}2. ^{{cite book|last=Preston|first=Ron G|title=Tender into Tank|year=1984|publisher=New South Wales Rail Transport Museum|location=Sydney|pages=11–57|isbn=0 909862 18 4}} 3. ^{{cite book|last=Grunbach|first=Alex|title=A Compendium of New South Wales Steam Locomotives|year=1989|publisher=Australian Railway Historical Society, NSW Division|location=Sydney|isbn=0 909650 27 6|pages=41–45}} 4. ^New South Wales Railways 1855-1955. Published by Department of Railways 5. ^{{cite news |url=http://nla.gov.au/nla.news-article13868780 |title=BALDWIN ENGINE COMMISSION. |newspaper=The Sydney Morning Herald |date=26 May 1892 |accessdate=27 October 2014 |page=6 |publisher=National Library of Australia}} 5 : Steam locomotives of New South Wales|Scrapped locomotives|Standard gauge locomotives of Australia|Baldwin locomotives|4-6-0 locomotives |
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