| 词条 | GSR Class 850 |
| 释义 |
| name = GSR 850 Class | image = | alt = | caption = | powertype = Steam | designer = J. R. Bazin | builder = Inchicore | ordernumber = | serialnumber = | buildmodel = | builddate = 1928 | totalproduction = 1 | rebuilder = | rebuilddate = | numberrebuilt = | whytetype = 2-6-2T | uicclass = | driver = | gauge = {{track gauge|Irish}} | leadingdiameter = {{convert|3|ft|1|in|mm|abbr=on}} | driverdiameter = {{convert|5|ft|6|in|mm|abbr=on}} | coupleddiameter = | trailingdiameter = {{convert|3|ft|0|in|mm|abbr=on}} | tenderdiameter = | minimumcurve = | wheelbase = | engine total = | leading = | drivers = | coupled = | trailing = | tender total = | tendertruck = | tenderbogie = | pivotcentres = | wheelspacing = | length = {{convert|39|ft|2+1/2|in|mm|abbr=on}} | over couplers = | over bufferbeams= | width = | height = | frametype = | axleload = | leadingbogie/pony= | coupled all = | coupled 1 = | coupled 2 = | coupled 3 = | coupled 4 = | coupled 5 = | coupled 6 = | coupled 7 = | coupled 8 = | trail bogie/pony= | tenderbogieload = | tenderaxle = | weightondrivers = {{convert|47.5|LT|MT}} | locoweight = {{convert|71|LT|MT}} | tenderweight = | locotenderweight = | tendertype = | fueltype = | fuelcap = | watercap = {{convert|1700|impgal|abbr=on}} | tendercap = | sandcap = | fireboxtype = | firearea = | boiler = | boilertype = | pitch = | diameterinside = | lengthinside = | smalltubediameter= | largetubediameter= | boilerpressure = {{convert|260|lbf/in2|MPa|2|abbr=on}} | safetyvalvetype = | feedwaterheater = | totalsurface = | tubearea = | archarea = | fluearea = | tubesandflues = | fireboxarea = {{convert|119|sqft|m2|abbr=on}} | superheatertype = Belpaire | superheaterarea = | cylindercount = 2 | cylindersize = {{convert|17+1/2|x|28|in|mm|0|abbr=on}} | frontcylindersize= | rearcylindersize = | hpcylindersize = | lpcylindersize = | valvegear = Walschaerts | valvetype = | valvetravel = | valvelap = | valvelead = | transmission = | trainheating = | locobrakes = | locobrakeforce = | trainbrakes = | safety = | coupling = | maxspeed = | poweroutput = | tractiveeffort = {{convert|17700|lbf|kN|2|abbr=on|lk=on}} | factorofadhesion = | operator = Great Southern Railways (GSR) CIÉ | operatorclass = P1 (Inchicore) | powerclass = H/HT | numinclass = 1 | fleetnumbers = 850 | officialname = | nicknames = | axleloadclass = | locale = Ireland | deliverydate = | firstrundate = | lastrundate = | retiredate = | withdrawndate = 1955 | preservedunits = | restoredate = | scrapdate = | currentowner = | disposition = | notes = [1]{{rp|259—262}} }} The Great Southern Railways (GSR) Class 850 consisted of a single 2-6-2T tank locomotive built by Inchicore railway works in 1927, the sole example carrying the same number as the class. It was the first locomotive designed and built by the GSR since it was formed.[1]{{rp|259—262}} DesignThe design incorporated elements while retaining some features typical of previous Inchicore engines. It was suggested that parts of the last unaccounted for Class 393 kit supplied from Woolwich may have been incorporated into the design.[1]{{rp|259—262}} ServiceThe locomotive worked Dublin—Bray—Greystones services and particularly was noted for regular appearances on the 17:07 Greystones express and Dún Laoghaire pier for the boat connections. It also had a short spell on Waterford—Limerick services in the 1930s. The locomotive was powerful but was prone to a rolling motion at speed.[1]{{rp|259—262}} Number 850 was noted for long and frequent periods out of service for repairs.[2] IncidentsIn 1946 the locomotive fell into the turntable pit outside the Dublin Harcourt Street railway station and required extensive repairs.[1]{{rp|259—262}} References1. ^1 2 3 4 {{cite book|title=Locomotives of the GSR|isbn=9781906578268|last1=Clements|first1=Jeremy|last2=McMahon|first2=Michael|year=2008|publisher=Colourpoint Books}} {{Ireland Steam Locomotives}}2. ^{{cite book|title=Irish railways since 1916|first=Michael H.C.|last=Baker|publisher=Ian Allan|isbn=9780711002821|edition=1st|date=20 June 1972|page=73}} 3 : 2-6-2T locomotives|5 ft 3 in gauge locomotives|Railway locomotives introduced in 1928 |
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