LNWR Precedent Class

{{Use dmy dates|date=April 2022}}

{{more citations needed|date=January 2018}}

{{Infobox locomotive

| name = LNWR Precedent class

| image = LNWR engine No.955, Charles Dickens.jpg

| alt =

| caption = LNWR 955 Charles Dickens, date and location unknown

| powertype = Steam

| designer = F. W. Webb

| builder = Crewe Works

| ordernumber =

| serialnumber = 1902–1921, 2034–2053, 2119–2128, 2400–2409, 2501–2510

| buildmodel =

| builddate = 1874–1882

| totalproduction = 70

| rebuilder =

| rebuilddate =

| numberrebuilt =

| whytetype = {{whyte|2-4-0}}

| uicclass = 1B n2

| driver =

| gauge = {{track gauge|ussg}}

| leadingdiameter = {{convert|3|ft|6|in|m|3|abbr=on}}

| driverdiameter = {{convert|6|ft|6|in|m|3|abbr=on}}

| tenderdiameter =

| minimumcurve =

| wheelbase = {{ubl|{{convert|7|ft|5|in|m|2|abbr=on}}+|{{convert|8|ft|3|in|m|3|abbr=on}}}}

| engine total =

| leading =

| coupled =

| trailing =

| tender total =

| pivotcentres =

| wheelspacing =

| length =

| 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 =

| locoweight = {{convert|33|LT}}

| tenderweight =

| locotenderweight =

| tendertype =

| fueltype = Coal

| fuelcap =

| watercap =

| tendercap =

| sandcap =

| fireboxtype =

| firearea =

| boiler =

| boilertype =

| pitch =

| diameterinside = {{convert|4|ft|2|in|m|3|abbr=on}}

| lengthinside = {{convert|9|ft|10|in|m|3|abbr=on}}

| smalltubediameter=

| largetubediameter=

| boilerpressure =

| safetyvalvetype =

| feedwaterheater =

| totalsurface = {{convert|1083|sqft|m2|abbr=on}}

| tubearea =

| archarea =

| fluearea =

| tubesandflues =

| fireboxarea =

| superheatertype =

| superheaterarea =

| cylindercount = Two, inside

| cylindersize = {{convert|17|x|24|in|mm|0|abbr=on}}

| valvegear = Allan

| valvetype =

| valvetravel =

| valvelap =

| valvelead =

| transmission =

| trainheating =

| locobrakes =

| locobrakeforce =

| trainbrakes =

| safety =

| coupling =

| maxspeed =

| poweroutput =

| tractiveeffort =

| factorofadhesion =

| operator = London and North Western Railway

| operatorclass =

| powerclass =

| numinclass =

| fleetnumbers =

| officialname = Precedent Class

| nicknames = Jumbo's

| axleloadclass =

| locale =

| deliverydate =

| firstrundate =

| lastrundate =

| retiredate =

| withdrawndate =

| restoredate = 1976

| scrapdate =

| currentowner =

| disposition = No. 790 Hardwicke preserved, remainder scrapped

| notes =

}}

The London and North Western Railway Precedent Class was a class of seventy {{whyte|2-4-0}} steam locomotives originally designed for express passenger work.