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{{Infobox locomotive
| name = DRG Class 24 DR Class 37.10 PKP Oi2
| bgcolor = A00
| color = FFF
| image = DRG 24 009.jpg
| alt =
| caption = 24 009 in the Bochum-Dahlhausen railway museum, October 1985
| powertype = Steam
| designer =
| builder = {{ubl|[[Schichau-Werke]] (67)|[[Hanomag]] (8)|[[Henschel]] (5)|[[Krupp]] (6)|[[Borsig Lokomotiv Werke (AEG)|Borsig]] (2)|[[Linke-Hofmann]] (7)}}
| ordernumber =
| serialnumber =
| buildmodel =
| builddate = 1928–1939
| totalproduction = 95
| rebuilder =
| rebuilddate =
| numberrebuilt =
| whytetype = {{whyte|2-6-0}}
| uicclass = 1{{prime}}C h2
| DRGtype = P 34.15
| driver = 
| gauge = {{track gauge|sg}}
| leadingdiameter = {{0|0,}}{{convert|850|mm|ftin|frac=8|abbr=on}}
| driverdiameter = {{convert|1,500|mm|ftin|frac=8|abbr=on}}
| tenderdiameter = {{convert|1000|mm|ftin|frac=8|abbr=on}}
| carrydiameter =
| minimumcurve =
| wheelbase =
| wheelspacing = {{ubl|{{convert|2700|mm|ftin|frac=8|abbr=on}} +|{{convert|1800|mm|ftin|frac=8|abbr=on}} +|{{convert|1800|mm|ftin|frac=8|abbr=on}} {{=}}}}
| engine total = {{convert|6300|mm|ftin|frac=8|abbr=on}}
| leading =
| drivers = 
| coupled = 
| trailing =
| tender total = {{ubl|{{convert|1900|mm|ftin|frac=8|abbr=on}} +|{{convert|1900|mm|ftin|frac=8|abbr=on}} {{=}}|{{convert|3800|mm|ftin|frac=8|abbr=on}}}}
| tendertruck = 
| tenderbogie = 
| wheelbasewithtender = {{convert|13270|mm|ftin|frac=8|abbr=on}}
| racksystem =
| pivotcentres = 
| length =
| over headstocks = {{convert|15655|mm|ftin|frac=8|abbr=on}}
| over buffers = {{convert|16955|mm|ftin|frac=8|abbr=on}}
| width =
| height = {{convert|4165|mm|ftin|frac=8|abbr=on}}
| frametype =
| axleload = {{convert|15.1|t|abbr=on}}
| leadingbogie/pony= 
| coupled all = 
| coupled 1 = 
| coupled 2 = 
| coupled 3 = 
| trail bogie/pony= 
| tenderbogieload = 
| tenderaxle = 
| weightondrivers = {{convert|45.2|t|abbr=on}}
| emptyweight = {{convert|52.0|t|abbr=on}}
| serviceweight = {{convert|57.4|t|abbr=on}}
| locoweight =
| tenderweight =
| locotenderweight =
| tendertype = 3 T 16
| fueltype = Coal
| fuelcap = {{convert|6|t|abbr=on}}
| watercap = {{convert|16|m3|impgal usgal|abbr=on}}
| tendercap =
| sandcap =
| fireboxtype = 
| firearea = {{convert|2.04|m2|abbr=on}}
| boiler = 
| boilertype = 
| pitch = {{convert|2700|mm|ftin|frac=8|abbr=on}}
| diameterinside =
| lengthinside = {{convert|3800|mm|ftin|frac=8|abbr=on}}
| smalltubediameter= {{convert|44.5|mm|in|frac=8|abbr=on}}, 114 off
| largetubediameter= {{convert|118|mm|in|frac=8|abbr=on}}, 32 off
| boilerpressure = {{convert|14|bar|kgf/cm2 psi|sigfig=3|abbr=on}}
| safetyvalvetype = 
| feedwaterheater =
| fireboxarea = {{convert|8.7|m2|abbr=on}}
| tubearea = {{convert|53.7|m2|abbr=on}}
| archarea =
| fluearea = {{convert|42.0|m2|abbr=on}}
| tubesandflues =
| totalsurface = {{convert|104.4|m2|abbr=on}}
| superheatertype =
| superheaterarea = {{convert|37.18|m2|abbr=on}}
| cylindercount = Two, outside
| cylindersize = {{convert|500|x|660|mm|in|frac=16|abbr=on}}
| hpcylindersize =
| lpcylindersize =
| cylinderpressure =
| valvegear = [[Walschaerts valve gear|Walschaerts]] with ''[[Kuhn slide]]s''
| valvetype =
| valvetravel =
| valvelap =
| valvelead =
| transmission =
| trainheating =
| locobrakes = Automatic, single-chamber, Knorr [[compressed-air brakes]], operating on [[coupled wheels|coupled]] and [[carrying wheels]] from the front
| locobrakeforce =
| trainbrakes =
| safety =
| coupling =
| maxspeed = {{convert|90|km/h|abbr=on}}
| indicatedpower = {{convert|920|PS|kW hp|sigfig=3|abbr=on}}
| poweroutput =
| tractiveeffort =
| factorofadhesion =
| operator = {{ubl|[[Deutsche Reichsbahn]]|[[Deutsche Bundesbahn]]||[[Deutsche Reichsbahn (GDR)]]|[[Polish State Railways]]}}
| operatorclass =
| powerclass =
| numinclass =
| fleetnumbers =
| officialname =
| nicknames =
| axleloadclass =
| locale =
| deliverydate =
| firstrundate =
| lastrundate =
| retiredate = 1972
| withdrawndate =
| preservedunits =
| restoredate =
| scrapdate =
| currentowner =
| disposition = Four preserved, remainder scrapped
| notes =
}}
The '''DRG Class 24''' steam engines were German standard locomotives (''[[Einheitsdampflokomotive|Einheitslokomotive]]n'') built for the [[Deutsche Reichsbahn-Gesellschaft|Deutsche Reichsbahn]] between 1928 and 1939 to haul passenger trains.

==History==
These engines, nickname the 'prairie horse' (''Steppenpferd'') were developed specially for the long, flat routes in [[West Prussia|West]] and [[East Prussia]]. 95 examples were built by the firms of [[Schichau-Werke|Schichau]], [[Linke-Hofmann-Busch|Linke-Hofmann]] and others. The two units with operating numbers 24 069 and 24 070 were supplied by [[Borsig Lokomotiv Werke (AEG)|Borsig]] with a medium pressure [[boiler]]. These locos ran with a boiler [[overpressure]] of {{convert|25|bar|kgf/cm2 psi|sigfig=3|abbr=on}}, but were rebuilt by DB in 1952.

The [[Deutsche Bundesbahn]] took over 38 locomotives and retired them by 1966. The last one with the DB was locomotive number 24 067, which was stabled in [[Mönchengladbach|Rheydt]] and taken out of service there in August 1966. The engines were given operating numbers 24 001 to 24 095.

Engine numbers 24 002, 004, 009, 021 and 030 were left with the [[Deutsche Reichsbahn (East Germany)|DR]] after the [[Second World War]]. They were all stabled in [[Jerichow]] shed in 1960 and their sphere of operations until 1968 was the branch line network of the [[Kleinbahn AG]] in [[Genthin]]. No. 24 009 was re-numbered in 1970 to 37 1009 and was used as a reserve breakdown engine in [[Güsten]] and [[Stendal]]. In 1972 it was sold to the [[Federal Republic of Germany|West German]] railway magazine ''[[Eisenbahn-Kurier]]. ''

Thirty-four locomotive remained in Poland after the Second World War, where [[Polish State Railways|PKP]] classified them as '''Oi2'''. They served until the last one was withdrawn in 1976. One of the preserved locomotives in Germany, no. 24 083, had been in service in Poland.

The locomotives were equipped with 3 T 16 and 3 T 17 [[Tender locomotive|tenders]].

Four Class 24 locomotives have been preserved: three in Germany (24 004, 24 009 and 24 083), and one in Poland (Oi2-29).

==See also==
* [[List of DRG locomotives and railbuses]]

==Literature==
* Klaus-Detlev Holzborn (2015): ''Der Sonderling 24 061''. In: Eisenbahn-Magazin. Nr. 7, ISSN 0342-1902, S. 14.
* {{Hütter-01bis45|pages=223–226}}
* {{cite book| first=Hansjürgen| last=Wenzel| title=Die Baureihe 24. Die kleinste Einheits-Schlepptenderlok| publisher=EK-Verlag| location=Freiburg| year=2012| isbn=978-3-88255-124-2| language=de}}
* {{Weisbrod-EFA1.1|pages=184–187}}

{{DRG locomotives}}

{{DEFAULTSORT:Drg Class 24}}
[[Category:Steam locomotives of Germany|24]]
[[Category:2-6-0 locomotives]]
[[Category:Deutsche Reichsbahn-Gesellschaft locomotives|24]]
[[Category:Hanomag locomotives]]
[[Category:Henschel locomotives]]
[[Category:Krupp locomotives]]
[[Category:Railway locomotives introduced in 1928]]
[[Category:Borsig locomotives]]
[[Category:Passenger locomotives]]
[[Category:Standard-gauge locomotives of Germany]]
[[Category:1′C h2 locomotives]]
[[Category:Schichau-Werke locomotives]]
[[Category:Linke-Hofmann locomotives]]

DRG Class 24 - Revision history

imported>Iain Bell: add reference