GWR 3511 class

{{Short description|Class of 10 British 2-4-0T locomotives}}

{{Use dmy dates|date=February 2018}}

{{Use British English|date=February 2018}}

{{Infobox Locomotive

|name = GWR 3511 to 3520

|powertype = Steam

|image =

|caption =

|designer = William Dean

|builder = GWR Swindon

|ordernumber = 64 (part)

|serialnumber = 1016–1025

|builddate = 1885

|totalproduction = 10

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

|uicclass = 1B

|gauge = {{RailGauge|ussg}}

|leadingdiameter = {{convert|3|ft|7|in|m|3|abbr=on}}

|driverdiameter = {{convert|5|ft|1|in|m|3|abbr=on}}

|minimumcurve =

|wheelbase = {{convert|17|ft|0|in|m|3|abbr=on}}

|length =

|width =

|height =

|axleload =

|weightondrivers =

|locoweight =

|fueltype = Coal

|fuelcap =

|watercap =

|tendercap =

|sandcap =

|boiler =

|boilerpressure =

|feedwaterheater =

|firearea =

|tubearea = {{convert|1106.57|sqft|m2|abbr=on}}

|fluearea =

|tubesandflues =

|fireboxarea = {{convert|103.29|sqft|m2|abbr=on}}

|totalsurface = {{convert|1209.86|sqft|m2|abbr=on}}

|superheatertype = None

|cylindercount = Two, inside

|cylindersize = {{convert|17|x|26|in|mm|0|abbr=on}}

|valvegear = Stephenson

|valvetype =

|valvetravel =

|valvelap =

|valvelead =

|transmission =

|maxspeed =

|poweroutput =

|tractiveeffort =

|factorofadhesion =

|trainheating = Steam

|locobrakes =

|locobrakeforce =

|trainbrakes =

|safety =

|operator = GWR

|operatorclass =

|powerclass =

|numinclass =

|fleetnumbers =

|officialname =

|nicknames =

|axleloadclass =

|locale =

|deliverydate =

|firstrundate =

|lastrundate =

|withdrawndate =

|preservedunits =

|restoredate =

|scrapdate =

|currentowner =

|disposition =

}}

The GWR 3511 class were standard gauge {{whyte|2-4-0|T}} locomotives designed by William Dean for the Great Western Railway and built in 1885.