Editing GWR 3700 Class (section)

{{Short description|Class of two-cylinder 4-4-0 locomotives}}
{{Use dmy dates|date=February 2018}}
{{Use British English|date=February 2018}}
{{Infobox locomotive
| name = 3700 "City" class
| powertype = Steam
| image = GWR_3700_-_GWR_3710.jpg
| caption = 3433 ''City of Bath'' in 1909
| designer = [[George Jackson Churchward]]
| builder = GWR [[Swindon Works]]
| builddate = 1903
| ordernumber = Lot 141
| serialnumber = 1993–2002
| totalproduction = 10 new + 10 rebuilt from Atbara class
| rebuilder = Swindon Works
| rebuilddate = 1902–1909
| numberrebuilt = 
| whytetype = {{whyte|4-4-0}}
| uicclass = 2′B n2, later 2′B h2
| gauge = {{track gauge|ussg}}
| leadingdiameter = {{convert|3|ft|2|in|m|3|abbr=on}}
| driverdiameter = {{convert|6|ft|8+1/2|in|m|3|abbr=on}}
| wheelbase = {{convert|8|ft|1/2|in|m|3|abbr=on}}
| length = 
| width = 
| height = 
| axleload = 
| weightondrivers = 
| locoweight = {{long ton|55|6}}
| locotenderweight = {{long ton|92|1}}
| fueltype = [[Coal]]
| fuelcap = 5 tons
| watercap = {{convert|3600|impgal|abbr=on}}
| boiler = GWR Standard No. 4
| cylindercount = Two, inside
| cylindersize = {{convert|18|x|26|in|mm|0|abbr=on}}
| valvegear = [[Stephenson valve gear]]
| valvetype = [[Slide valves]]
| maxspeed = {{convert|100|mph|km/h|abbr=on}}
| tractiveeffort = {{convert|17800|lbf|kN|1|abbr=on}}
| factorofadhesion = 8.50
| locobrakes = [[Steam brake|Steam]]
| trainbrakes = [[Vacuum brake|Vacuum]]
| operator = [[Great Western Railway|GWR]]
| operatorclass = 3700
| powerclass = [[Great Western Railway Power Classification|GWR: A]]
| axleloadclass = [[Great Western Railway Weight Classification|GWR: Blue]]
| numinclass = 20
| fleetnumbers = {{ubl|(until 1912) 3400–3409, 3433–3442|(from 1912) 3700–3719}}
| officialname = City Class
| nicknames = 
| locale = 
| deliverydate = 
| firstrundate = 
| lastrundate = 
| withdrawndate = October 1927 - May 1931
| restoredate = 
| scrapdate = 
| currentowner = 
| disposition = One preserved, remainder scrapped
}}

The [[Great Western Railway]] '''3700 Class''', or '''City Class''', was a series of twenty [[Whyte notation|4-4-0]] steam [[locomotive]]s, designed for hauling express passenger trains.