View source for DRG Class 85

{{one source|date=July 2016}}
{{Infobox locomotive
| name             = DRG Class 85
| bgcolor          = A00
| color            = FFF
| image            = Lokomotive_85007_06.jpg
| alt              = 
| caption          = 85&nbsp;007 in November 2009
| powertype        = Steam
| designer         = 
| builder          = [[Henschel & Sohn]]
| ordernumber      = 
| serialnumber     = 22110–22117, 22142–22144
| buildmodel       = 
| builddate        = 1932–1933
| totalproduction  = 10
| rebuilder        = 
| rebuilddate      = 
| numberrebuilt    = 
| whytetype        = {{whyte|2-10-2|T}}
| uicclass         = 1′E1′ h3t
| DRGtype          = Gt 57.20
| driver           = Divided: Inner cylinder to 2nd coupled axle, outer to 3rd
| gauge            = {{track gauge|sg}}
| leadingdiameter  = {{0|0,}}{{convert|850|mm|ftin|frac=8|abbr=on}}
| driverdiameter   = {{convert|1400|mm|ftin|frac=8|abbr=on}}
| trailingdiameter = {{0|0,}}{{convert|850|mm|ftin|frac=8|abbr=on}}
| wheelbase        = 
|  wheelspacing    = {{ubl|{{convert|2850|mm|ftin|frac=8|abbr=on}} +|{{convert|1700|mm|ftin|frac=8|abbr=on}} +|{{convert|1700|mm|ftin|frac=8|abbr=on}} +|{{convert|1700|mm|ftin|frac=8|abbr=on}} +|{{convert|1700|mm|ftin|frac=8|abbr=on}} +|<u>{{convert|2850|mm|ftin|frac=8|abbr=on}} {{=}}</u>}}
|  engine total    = {{convert|12500|mm|ftin|frac=8|abbr=on}}
|  leading         = 
|  drivers         = <!-- USA terminology -->
|  coupled         = <!-- British terminology -->
|  trailing        = 
| length           = 
|  over headstocks = {{convert|15000|mm|ftin|frac=8|abbr=on}}
|  over buffers    = {{convert|16300|mm|ftin|frac=8|abbr=on}}
| width            = {{convert|3050|mm|ftin|frac=16|abbr=on}}
| height           = {{convert|4550|mm|ftin|frac=16|abbr=on}}
| frametype        = 
| axleload         = {{convert|19.94|t}}
|  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       = 
|  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  = {{convert|99.7|t}}
| emptyweight      = {{convert|107.5|t}}
| serviceweight    = {{convert|133.6|t}}
| locoweight       = 
| tenderweight     = 
| locotenderweight = 
| tendertype       = 
| fueltype         = Coal
| fuelcap          = {{convert|4.5|t}}
| watercap         = {{convert|14|m3|impgal usgal|sigfig=3|abbr=on}}
| sandcap          = 
| fireboxtype      = <!-- Round-top, Belpaire, combustion chamber, etc. -->
|  firearea        = {{convert|3.5|m2|abbr=on}}
| boiler           = <!-- Watson Standard no. x, etc -->
|  boilertype      = <!-- Domeless, etc -->
|  pitch           = {{convert|3150|mm|ftin|frac=8|abbr=on}}
|  diameterinside  = 
|  lengthinside    = {{convert|4700|mm|ftin|frac=8|abbr=on}}
|  smalltubediameter= {{convert|50|mm|in|frac=16|abbr=on}}, 155 off
|  largetubediameter= {{convert|133|mm|in|frac=16|abbr=on}}, 41 off
| boilerpressure   = {{convert|14|bar|kgf/cm2 psi|sigfig=3|abbr=on}}
| safetyvalvetype  = <!-- Salter spring balance, Ramsbottom, Pop, etc. -->
| feedwaterheater  = 
|  fireboxarea     = {{convert|15.0|m2|abbr=on}}
|  tubearea        = {{convert|105.6|m2|abbr=on}}
|  archarea        = 
|  fluearea        = {{convert|75.25|m2|abbr=on}}
|  tubesandflues   = 
|  totalsurface    = {{convert|195.85|m2|abbr=on}}
| superheatertype  = 
|  superheaterarea = {{convert|72.50|m2|abbr=on}}
| cylindercount    = Three
| cylindersize     = {{convert|600|x|660|mm|in|frac=16|abbr=on}}
| cylinderpressure = 
| valvegear        = [[Walschaerts valve gear|Heusinger (Walschaerts)]]
| valvetype        = 
| valvetravel      = 
| valvelap         = 
| valvelead        = 
| transmission     = 
| trainheating     = 
| locobrakes       = 
| locobrakeforce   = 
| trainbrakes      = 
| safety           = 
| coupling         = 
| maxspeed         = {{convert|80|km/h|mph|0|abbr=on}}
| indicatedpower   = {{convert|1500|PS|kW hp|sigfig=3|abbr=on}}
| poweroutput      = 
| tractiveeffort   = {{convert|280|kN|lbf|sigfig=3|abbr=on}}
| factorofadhesion = 
| operator         = [[Deutsche Reichsbahn]]
| operatorclass    = 
| powerclass       = 
| numinclass       = 
| fleetnumbers     = 
| officialname     = 85&nbsp;001 – 85&nbsp;010
| nicknames        = 
| axleloadclass    = 
| locale           = 
| deliverydate     = 
| firstrundate     = 
| lastrundate      = 
| retiredate       = 1961
| withdrawndate    = 
| preservedunits   = 
| restoredate      = 
| scrapdate        = 
| currentowner     = 
| disposition      = 
| notes            = 
}}
The '''Class 85''' was a German [[Tank locomotive|goods train tank engine]] and standard locomotive (''[[Einheitsdampflokomotive|Einheitslok]]'') with the [[Deutsche Reichsbahn-Gesellschaft|Deutsche Reichsbahn]].

== History ==
In 1931, the DRG ordered ten locomotives from the firm of [[Henschel]] that were taken into the fleet as numbers 85&nbsp;001 to 85&nbsp;010. The Class 85 was intended for hauling [[Passenger train|passenger]] and [[goods trains]]. They were however also employed as [[pusher locomotives]] on the [[Höllentalbahn (Black Forest)|Höllentalbahn]] in the [[Black Forest]]. Thanks to this engine, the Höllental Railway could do away with [[rack railway]] operations from 1933. The running gear and the [[Superheater|superheated]] system were taken from the  [[DRG Class 44|Class 44]]. The [[boiler]], with a few minor alterations, was the same as that of the [[DRG Class 62|Class 62]]. All the locomotives were stabled at the [[Freiburg im Breisgau|Freiburg]] shed. Apart from number 85&nbsp;004, which was lost in the [[Second World War]], all the engines were in operation in the Black Forest until 1961, the year the route was converted from experimental electrical operations with 20 kV/50&nbsp;Hz lines to the usual [[Deutsche Bundesbahn]] standard of {{15 kV AC}}. One engine, number 85 007, was still in service in [[Wuppertal]] until the end of the year, but they were all retired by the beginning of the next year.

== Preserved locomotives ==
Number 85 007 belongs to the town of [[Freiburg im Breisgau]]. It is not operational, but is maintained by the ''Bahn-Sozialwerk-Gruppe''. The engine is housed in the former locomotive shed.

== References ==
{{reflist}}
* {{Hütter-60bis91|pages=265–267}}
* {{cite book| last1=Scharf| first1=Hans| last2=Wollny| first2=Burkhard| title=Die Höllentalbahn| publisher=EK Verlag| location=Freiburg| year=1987| isbn=3-88255-780-X| language=de}}
* {{Weisbrod-EFA1.3|pages=114–116, 242}}

== External links ==
* [http://www.horst-jeschke.de/lok85.htm History of the Class 85 in the Höllental, Black Forest]

{{commons category|DRG Class 85}}
{{DRG locomotives}}

[[Category:Steam locomotives of Germany|85]]
[[Category:2-10-2T locomotives]]
[[Category:Deutsche Reichsbahn-Gesellschaft locomotives|85]]
[[Category:Henschel locomotives]]
[[Category:Railway locomotives introduced in 1932]]
[[Category:Standard-gauge locomotives of Germany]]
[[Category:1′E1′ h3t locomotives]]
[[Category:Freight locomotives]]