Indian locomotive class WW

{{EngvarB|date=February 2018}}

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

{{Infobox locomotive

| name = Indian WW

| powertype = Steam

| image = WW works photo, 1942.jpg

| alt = Vulcan Foundry works photo of NWR no. 301.

| caption = Vulcan Foundry works photo of NWR no. 301.

| designer =

| builder = Vulcan Foundry

| ordernumber =

| serialnumber = 4791–4794

| buildmodel =

| builddate = 1940–1942

| totalproduction = 4

| rebuilder =

| rebuilddate =

| numberrebuilt =

| whytetype = 0-6-2T

| uicclass = C1′h2t

| gauge = {{track gauge|5ft6in|lk=on}}

| driverdiameter = {{convert|4|ft|3|in|mm|0|abbr=on}}

| trailingdiameter =

| minimumcurve =

| wheelbase =

| length =

| width =

| height =

| axleload = {{convert|16.5|LT|t ST}}

| weightondrivers =

| locoweight = {{convert|65.85|LT|t ST}}

| fueltype = Coal

| fuelcap =

| watercap =

| sandcap =

| boiler =

| boilerpressure = {{convert|210|psi|MPa|2|abbr=on}}

| feedwaterheater =

| firearea =

| tubearea =

| fluearea =

| tubesandflues =

| fireboxarea =

| totalsurface =

| superheatertype =

| superheaterarea =

| cylindercount = Two, outside

| cylindersize = {{convert|16|x|22|in|mm|0|abbr=on}}

| valvegear = Walschaerts

| valvetype =

| valvetravel =

| valvelap =

| valvelead =

| transmission =

| maxspeed =

| poweroutput =

| tractiveeffort = {{convert|19710|lbf|kN|2|abbr=on}}

| factorofadhesion =

| trainheating =

| locobrakes =

| locobrakeforce =

| trainbrakes =

| safety =

| operator = Indian Railways

| operatorclass =

| powerclass =

| numinclass = 4

| fleetnumbers = 15010–15013

| officialname =

| nicknames =

| axleloadclass =

| locale =

| deliverydate =

| firstrundate =

| lastrundate =

| retiredate =

| withdrawndate =

| preservedunits =

| restoredate =

| scrapdate =

| currentowner =

| disposition =

| notes = {{sfn|Hughes|1996|p=23}}{{cite web|url=http://www.enuii.org/vulcan_foundry/photographs/locomotives/Publicity/NWR%200-6-2T%201942.pdf |title=Indian Railways 5 ft. 6 in. Gauge 1952 0-6-2T (WW) brochure |publisher=Vulcan Foundry |access-date=11 July 2013 |archive-url=https://web.archive.org/web/20131019192759/http://www.enuii.org/vulcan_foundry/photographs/locomotives/Publicity/NWR%200-6-2T%201942.pdf |archive-date=19 October 2013 |url-status=dead }}

}}

The Indian locomotive class WW was a class of 0-6-2T tank locomotives used on {{Track gauge|5ft6in|lk=on}} broad gauge lines in India.{{sfn|Hughes|1996|p=23}}Hughes 1976, p. 21.Marshall 2009, pp. 147–148. The four members of the class were built by Vulcan Foundry in Newton-le-Willows, Lancashire, England, and completed in 1942.