Editing 2-10-10-2 (section)

== ATSF 3000 class ==
{{No sources section|date=July 2024|find=ATSF 3000 class}}
{{Infobox locomotive
| name = ATSF 3000 class
| image = Detroit Publishing - New Mallet articulated compound engine on the Santa Fe (sky cropped).jpg
| alt = 
| caption = ATSF 3000 class 2-10-10-2. The forward section of the boiler is a primitive [[superheater]] and [[feedwater heater]]
| powertype = Steam
| designer = 
| builder = [[Baldwin Locomotive Works]]
| ordernumber = 
| serialnumber = 
| buildmodel = 
| builddate = 1911-1912
| totalproduction = 
| rebuilder = [[ATSF]]
| rebuilddate = 1915-1918 (as 2-10-2’s)
| numberrebuilt = 10
| website = 
| whytetype = 2-10-10-2
| uicclass = 
| driver = <!-- e.g. 1st, 2nd  or 3rd coupled axle -->
| gauge = {{track gauge|ussg}}
| leadingdiameter = 
| driverdiameter = {{convert|57|in|m|3|abbr=on}}
| trailingdiameter = 
| tenderdiameter = <!-- tender wheel diameter -->
| minimumcurve = 
| wheelbase = {{convert|108|ft|10|in|m|abbr=on}}
| engine total = 
| leading = 
| drivers = <!-- USA terminology -->
| coupled = <!-- British terminology -->
| trailing = 
| tender total = 
| tendertruck = <!-- USA terminology -->
| tenderbogie = <!-- British terminology -->
| pivotcentres = <!-- Garratts, diesels and electrics -->
| wheelspacing = <!-- coupled wheels with asymmetrical wheel spacing -->
| length = {{convert|122|ft|m|2|abbr=on}}
| over couplers = 
| over bufferbeams = 
| width = 
| height = 
| frametype = 
| axleload = 
| leadingbogie/pony = <!-- load on leading bogie or pony wheel -->
| coupled all = <!-- when the load on all coupled wheels are the same -->
| coupled 1 = <!-- load on 1st coupled wheel -->
| coupled 2 = <!-- load on 2nd coupled wheel -->
| coupled 3 = <!-- etc. -->
| coupled 4 = 
| coupled 5 = 
| coupled 6 = 
| coupled 7 = 
| coupled 8 = 
| trail bogie/pony = <!-- load on trailing bogie or pony wheel -->
| tenderbogieload = <!-- load per tender bogie, use "Truck 1:<br />Bogie 2:" if different -->
| tenderaxle = <!-- use "Axle 1:", etc with "<br />" for line breaks -->
| weightondrivers = 
| locoweight = {{convert|616,000|lb|kg t|sigfig=4|abbr=on}}
| tenderweight = {{convert|266,400|lb|kg t|abbr=on}}
| locotenderweight = 882,400 lb (400,180 kg; 400.18 t)
| tendertype = 
| fueltype = 
| fuelcap = 
| watercap = 
| tendercap = 
| sandcap = 
| fireboxtype = <!-- Round-top, Belpaire, combustion chamber, etc. -->
| firearea = 
| boiler = <!-- Watson Standard no. x, etc -->
| boilertype = <!-- Domeless, etc -->
| pitch = <!-- height of boiler centreline above the railhead -->
| diameterinside = 
| lengthinside = <!-- distance between tube plates -->
| smalltubediameter = <!-- number of boiler tubes and their outside diameter -->
| largetubediameter = <!-- number of larger tubes (flues), if any, and their outside diameter -->
| boilerpressure = {{convert|225|psi|MPa|abbr=on}}
| safetyvalvetype = <!-- Salter spring balance, Ramsbottom, Pop, etc. -->
| feedwaterheater = 
| totalsurface = 
| tubearea = 
| archarea = 
| fluearea = 
| tubesandflues = 
| fireboxarea = 
| superheatertype = 
| superheaterarea = 
| cylindercount = Four, compound (LP front, HP rear)
| hpcylindersize = {{convert|28|x|32|in|mm|0|abbr=on}}
| lpcylindersize = {{convert|38|x|32|in|mm|0|abbr=on}}
| valvegear = 
| valvetype = 
| valvetravel = 
| valvelap = 
| valvelead = 
| transmission = 
| trainheating = 
| locobrakes = 
| locobrakeforce = 
| trainbrakes = 
| safety = 
| coupling = 
| maxspeed = 
| poweroutput = 
| tractiveeffort = {{convert|111600|lbf|kN|abbr=on}}
| factorofadhesion = 
| operator = [[Atchison, Topeka and Santa Fe Railway]]
| operatorclass = 
| powerclass = 
| numinclass = 
| fleetnumbers = 3000–3009
| officialname = 
| nicknames = 
| axleloadclass = 
| locale = 
| deliverydate = 
| firstrundate = 
| lastrundate = 
| withdrawndate = 1945-1953
| restoredate = 
| scrapdate = 1947-1953
| currentowner = 
| disposition = All scrapped
| notes = 
}}

In 1911 and 1912,  the [[Atchison, Topeka and Santa Fe Railway]] modified ten [[2-10-2]] [[Baldwin Locomotive Works|Baldwin]]-built locomotives into a new 2-10-10-2 configuration dubbed the 3000 class. They were the largest locomotives in the world from their introduction until 1914. They performed well in helper service, but could only go {{cvt|10 to 15|mph}} before losing steam. The ATSF reverted them to their 2-10-2 configurations between 1915 and 1918.

{{clear}}