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DRB Class 06 - Revision history
2026-05-07T17:38:02Z
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imported>Iain Bell: add reference
2025-05-28T11:56:37Z
<p>add reference</p>
<p><b>New page</b></p><div>{{more citations needed|date=December 2021}}<br />
{{Infobox locomotive<br />
| name = DRB Class 06<br/>DB Class 06<br />
| bgcolor = A00<br />
| color = FFF<br />
| image = (Locomotive No. 360, Freidrich Krupp AG) (8119863259).jpg<br />
| alt = <br />
| caption = <br />
| powertype = Steam<br />
| designer = <br />
| builder = [[Krupp]]<br />
| ordernumber = <br />
| serialnumber = 2000–2001<br />
| buildmodel = <br />
| builddate = 1939<br />
| totalproduction = 2<br />
| rebuilder = <br />
| rebuilddate = <br />
| numberrebuilt = <br />
| whytetype = {{whyte|4-8-4}}<br />
| uicclass = 2′D2′ h3<br />
| DRGtype = S 48.20 / 18<br />
| driver = Divided: inside cylinder to first coupled axle, outside to second<br />
| gauge = {{track gauge|sg}}<br />
| leadingdiameter = {{convert|1000|mm|ftin|frac=8|abbr=on}}<br />
| driverdiameter = {{convert|2000|mm|ftin|frac=8|abbr=on}}<br />
| trailingdiameter = {{convert|1000|mm|ftin|frac=8|abbr=on}}<br />
| tenderdiameter = {{convert|1100|mm|ftin|frac=8|abbr=on}}<br />
| carrydiameter = <br />
| minimumcurve = <br />
| wheelbase = <br />
| wheelspacing = {{ubl|{{convert|2200|mm|ftin|frac=8|abbr=on}} +|{{convert|1850|mm|ftin|frac=8|abbr=on}} +|{{convert|2250|mm|ftin|frac=8|abbr=on}} +|{{convert|2250|mm|ftin|frac=8|abbr=on}} +|{{convert|2250|mm|ftin|frac=8|abbr=on}} +|{{convert|1925|mm|ftin|frac=8|abbr=on}} +|<u>{{convert|1800|mm|ftin|frac=8|abbr=on}} {{=}}</u>}}<br />
| engine total = {{convert|14525|mm|ftin|frac=8|abbr=on}}<br />
| leading = <br />
| drivers = <!-- USA terminology --><br />
| coupled = <!-- British terminology --><br />
| trailing = <br />
| tender total = {{ubl|{{convert|1750|mm|ftin|frac=8|abbr=on}} +|{{convert|1500|mm|ftin|frac=8|abbr=on}} +|{{convert|1375|mm|ftin|frac=8|abbr=on}} +|<u>{{convert|1375|mm|ftin|frac=8|abbr=on}} {{=}}</u>|{{convert|6000|mm|ftin|frac=8|abbr=on}}}}<br />
| tendertruck = <!-- USA terminology --><br />
| tenderbogie = <!-- British terminology --><br />
| wheelbasewithtender = {{convert|22450|mm|ftin|frac=8|abbr=on}}<br />
| racksystem = <br />
| pivotcentres = <!-- Garratts, diesels and electrics --><br />
| length = <br />
| over headstocks = {{convert|25220|mm|ftin|frac=8|abbr=on}}<br />
| over buffers = {{convert|26520|mm|ftin|frac=8|abbr=on}}<br />
| width = <br />
| height = {{convert|4550|mm|ftin|frac=8|abbr=on}}<br />
| frametype = <br />
| axleload = {{convert|20.0|t|abbr=on}}<br />
| leadingbogie/pony= <!-- load on leading bogie or pony wheel --><br />
| coupled all = <!-- when the load on all coupled wheels are the same --><br />
| coupled 1 = <!-- load on 1st coupled wheel --><br />
| coupled 2 = <!-- load on 2nd coupled wheel --><br />
| coupled 3 = <!-- etc. --><br />
| coupled 4 = <br />
| trail bogie/pony= <!-- load on trailing bogie or pony wheel --><br />
| tenderbogieload = <!-- load per tender bogie, use "Truck 1:<br/>Bogie 2:" if different --><br />
| tenderaxle = <!-- use "Axle 1:", etc with "<br/>" for line breaks --><br />
| weightondrivers = {{convert|80.0|t|abbr=on}}<br />
| emptyweight = {{convert|129.8|t|abbr=on}}<br />
| serviceweight = {{convert|141.8|t|abbr=on}}<br />
| locoweight = <br />
| tenderweight = <br />
| locotenderweight = <br />
| tendertype = 2′3&nbsp;T&nbsp;38&nbsp;St<br />
| fueltype = Coal<br />
| fuelcap = {{convert|10|t|abbr=on}}<br />
| watercap = {{convert|38|m3|impgal usgal|abbr=on}}<br />
| tendercap = <br />
| sandcap = <br />
| fireboxtype = <!-- Round-top, Belpaire, combustion chamber, etc. --><br />
| firearea = {{convert|5.04|m2|abbr=on}}<br />
| boiler = <!-- Watson Standard no. x, etc --><br />
| boilertype = <!-- Domeless, etc --><br />
| pitch = {{convert|3060|mm|ftin|frac=8|abbr=on}}<br />
| diameterinside = <br />
| lengthinside = {{convert|7500|mm|ftin|frac=8|abbr=on}}<br />
| smalltubediameter= {{convert|83|mm|in|frac=8|abbr=on}}, 72 off<br />
| largetubediameter= {{convert|191|mm|in|frac=8|abbr=on}}, 33 off<br />
| boilerpressure = {{convert|20|bar|kgf/cm2 psi|sigfig=3|abbr=on}}<br />
| safetyvalvetype = <!-- Salter spring balance, Ramsbottom, Pop, etc. --><br />
| feedwaterheater = <br />
| fireboxarea = {{convert|18.8|m2|abbr=on}}<br />
| tubearea = {{convert|130.0|m2|abbr=on}}<br />
| archarea = <br />
| fluearea = {{convert|140.2|m2|abbr=on}}<br />
| tubesandflues = <br />
| totalsurface = {{convert|289.0|m2|abbr=on}}<br />
| superheatertype = <br />
| superheaterarea = {{convert|132.5|m2|abbr=on}}<br />
| cylindercount = Three<br />
| cylindersize = {{convert|520|x|720|mm|in|frac=16|abbr=on}}<br />
| cylinderpressure = <br />
| valvegear = [[Walschaerts valve gear|Heusinger (Walschaerts)]]<br />
| valvetype = <br />
| valvetravel = <br />
| valvelap = <br />
| valvelead = <br />
| transmission = <br />
| trainheating = <br />
| locobrakes = <br />
| locobrakeforce = <br />
| trainbrakes = <br />
| safety = <br />
| coupling = <br />
| maxspeed = {{convert|140|km/h|abbr=on}}<br />
| indicatedpower = {{convert|2800|PS|kW hp|sigfig=3|abbr=on}}<br />
| poweroutput = <br />
| tractiveeffort = <br />
| factorofadhesion = <br />
| operator = {{ubl|Deutsche Reichsbahn|Deutsche Bundesbahn}}<br />
| operatorclass = <br />
| powerclass = <br />
| numinclass = <br />
| fleetnumbers = 06&nbsp;001 – 06&nbsp;002<br />
| officialname = <br />
| nicknames = <br />
| axleloadclass = <br />
| locale = <br />
| deliverydate = <br />
| firstrundate = <br />
| lastrundate = <br />
| retiredate = 1951<br />
| withdrawndate = <br />
| preservedunits = <br />
| restoredate = <br />
| scrapdate = <br />
| currentowner = <br />
| disposition = Both scrapped<br />
| notes = <br />
}}<br />
The German '''DRB Class 06''' engines were standard steam locomotives (''[[Einheitsdampflokomotive]]n'') with the [[Deutsche Reichsbahn#1937: Deutsche Reichsbahn (DRB)|Deutsche Reichsbahn]] (DRB) designed to haul [[express train]] services. They were the only German locomotives with a [[4-8-4|4-8-4 (Northern)]] [[Whyte notation|wheel arrangement]].<br />
<br />
== History ==<br />
The two Class 06 locomotives built by the firm of [[Krupp]] in 1939 were the largest, heaviest and most powerful locomotives in the [[Deutsche Reichsbahn]]. They were built for heavy express train duties in hilly terrain. The performance requirement was for the transportation of 650&nbsp;tons at {{cvt|120|km/h|mph}}. On ramps of 1:100 it was to still be capable of maintaining {{cvt|60|km/h|mph}}.<br />
<br />
The Class 06 was given the same [[boiler]] as the [[DRG Class 45|Class 45]] and many of the same components as the [[DRG Class 41|Class 41]]. The [[running gear]], with four [[coupled axles]], had a [[wheelbase]] of {{cvt|6.75|m|ft}}<br />
<br />
In trials, the vehicles confirmed their remarkable capability and running qualities. However the locomotives tended to derail in tight turnout curves. And, like the Class 45s, the boilers developed cracks, leaky tubes and popped stay bolts, so that the locomotives were unconvincing when hauling measurement vehicles or scheduled trains.<br />
<br />
As a result of the war no more were produced. After [[World War II]] a locomotive of this size was no longer needed, thus neither the necessary structural modification of the engines was carried out, nor did any follow-on orders result. Both engines were seen as having a faulty design and were retired by the [[Deutsche Bundesbahn]] in 1951 in [[Frankfurt am Main]] and scrapped, because the DB refused to replace their boilers.<br />
<br />
The two locomotives, which had operating numbers 06 001 and 06 002, were equipped with 2'3 T 38 St [[Tender (locomotive)|tender]]s.<br />
<br />
==See also==<br />
* [[List of DRG locomotives and railbuses]]<br />
<br />
==References==<br />
{{reflist}}<br />
*{{Hütter-01bis45|page=93}}<br />
*{{Weisbrod-EFA1.1|pages=63–65}}<br />
<br />
== External links ==<br />
* [http://www.dlok.de/img_files/dk/dk-abb-026.jpg Photograph of the Class 06]<br />
<br />
{{DRG locomotives}}<br />
<br />
[[Category:Steam locomotives of Germany|06]]<br />
[[Category:4-8-4 locomotives]]<br />
[[Category:Deutsche Reichsbahn-Gesellschaft locomotives|06]]<br />
[[Category:Krupp locomotives]]<br />
[[Category:Railway locomotives introduced in 1939]]<br />
[[Category:Streamlined steam locomotives]]<br />
[[Category:Standard-gauge locomotives of Germany]]<br />
[[Category:2′D2′ h3 locomotives]]<br />
[[Category:Passenger locomotives]]</div>
imported>Iain Bell