View source for DRG Class 01

{{Short description|Class of 241 German 4-6-2 locomotives (1926–1982)}}
{{more footnotes needed|date=December 2014}}
{{Use dmy dates|date=May 2023}}
{{Infobox locomotive
| name             = DRG Class 01
| bgcolor          = A00
| color            = FFF
| image            = 01118 Koenigstein.jpg
| alt              = 
| caption          = 01&nbsp;118 at Bahnhofsfest Königstein Pfingsten 2007
| powertype        = Steam
| designer         = 
| builder          =  {{ubl|[[AEG (German company)|AEG]] (12),|[[Berliner Maschinenbau]] (29),|[[Borsig Lokomotiv Werke (AEG)|Borsig]] (18),|[[Henschel & Sohn]] (122),|[[Lokomotivbau Hohenzollern|Hohenzollern]] (12),|[[Krupp]] (38)}}
| ordernumber      = 
| serialnumber     = 
| buildmodel       = 
| builddate        = 1926–1938
| totalproduction  = 231 + 10 former [[DRG Class 02|Class 02]]s
| rebuilder        = 
| rebuilddate      = 
| numberrebuilt    = 
| whytetype        = {{whyte|4-6-2}}
| uicclass         = 2′C1′ h2
| DRGtype          = S 36.20
| driver           = Second coupled axle
| gauge            = {{track gauge|sg}}
| leadingdiameter  = {{ubl|''01&nbsp;001–101, 233–242:'' {{convert|850|mm|in|frac=8|abbr=on}}|''01&nbsp;102–232:'' {{convert|1000|mm|in|frac=8|abbr=on}}}}
| driverdiameter   = {{convert|2000|mm|in|frac=8|abbr=on}}
| trailingdiameter = {{convert|1250|mm|in|frac=8|abbr=on}}
| tenderdiameter   = <!-- tender wheel diameter -->
| carrydiameter    = 
| minimumcurve     = 
| wheelbase        = 
|  wheelspacing    = {{ubl|{{convert|2200|mm|ftin|frac=8|abbr=on}} +|{{convert|1800|mm|ftin|frac=8|abbr=on}} +|{{convert|2300|mm|ftin|frac=8|abbr=on}} +|{{convert|2300|mm|ftin|frac=8|abbr=on}} +|<u>{{convert|3800|mm|ftin|frac=8|abbr=on}}</u>{{=}}}}
|  engine total    = {{convert|12400|mm|ftin|frac=8|abbr=on}}
|  leading         = 
|  coupled         = <!-- British terminology -->
|  trailing        = 
|  tender total    = 
|  tenderbogie     = <!-- British terminology -->
|  wheelbasewithtender = {{convert|20320|mm|ftin|frac=8|abbr=on}}
| racksystem       = 
| pivotcentres     = <!-- Garratts, diesels and electrics -->
| length           = 
|  over buffers    = {{convert|23940|mm|ftin|frac=8|abbr=on}}
|  over headstocks = {{convert|22640|mm|ftin|frac=8|abbr=on}}
| width            = 
| height           = {{convert|4550|mm|ftin|frac=16|abbr=on}}
| frametype        = 
| axleload         = {{convert|19.73|-|20.1|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. -->
|  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|59.2|-|60.2|t}}
| emptyweight      = {{convert|99.2|-|100.1|t}}
| serviceweight    = {{convert|108.9|-|111.3|t}}
| locoweight       = 
| tenderweight     = 
| locotenderweight = 
| tendertype       =  2′2′T&nbsp;30/32/34
| fueltype         = Hard coal
| fuelcap          = {{convert|10|t}}
| watercap         = {{convert|30|or|32|or|34|m3|impgal usgal|abbr=on}}
| tendercap        = 
| sandcap          = 
| fireboxtype      = <!-- Round-top, Belpaire, combustion chamber, etc. -->
|  firearea        = {{ubl|''01&nbsp;001–149, 233–242:'' {{convert|4.41|m2|abbr=on}}|''01&nbsp;150–232:'' {{convert|4.32|m2|abbr=on}}}}
| boiler           = <!-- Watson Standard no. x, etc -->
|  boilertype      = <!-- Domeless, etc -->
|  pitch           = {{convert|3100|mm|ftin|frac=8|abbr=on}}
|  diameterinside  = 
|  lengthinside    = {{ubl|''01&nbsp;001–076:'' {{convert|5800|mm|ftin|frac=16|abbr=on}}|''01&nbsp;077–232:'' {{convert|6800|mm|ftin|frac=16|abbr=on}}}}
|  smalltubediameter={{ubl|''01 001–076:'' {{convert|54|mm|in|frac=16|abbr=on}}, 129 off|''01 077–232:'' {{convert|70|mm|in|frac=16|abbr=on}}, 106 off}}
|  largetubediameter={{ubl|''01 001–076:'' {{convert|143|mm|in|frac=16|abbr=on}}, 43 off|''01 077–232:''{{convert|171|mm|in|frac=16|abbr=on}}, 24 off}} 
| boilerpressure   = {{convert|16|bar|kgf/cm2 psi|sigfig=3|abbr=on}}
| safetyvalvetype  = <!-- Salter spring balance, Ramsbottom, Pop, etc. -->
| feedwaterheater  = 
| totalsurface     = {{ubl|''01 001–076, 233–242:'' {{convert|237.56|m2|abbr=on}}|''01 077–149:'' {{convert|247.25|m2|abbr=on}}|''01 150–232:'' {{convert|247.15|m2|abbr=on}}}}
|  tubearea        = {{ubl|''01 001–076, 233–242:'' {{convert|115.18|m2|abbr=on}}|''01 077–232:'' {{convert|147.19|m2|abbr=on}}}}
|  archarea        = 
|  fluearea        = {{ubl|''01 001–076, 233–242:'' {{convert|105.38|m2|abbr=on}}|''01 077–232:'' {{convert|83.06|m2|abbr=on}}}}
|  tubesandflues   = 
|  fireboxarea     = {{ubl|''01 001–149:'' {{convert|17.00|m2|abbr=on}}|''01 150–232:'' {{convert|16.90|m2|abbr=on}}}}
| superheatertype  = 
|  superheaterarea = {{ubl|''01 001–076, 233–242:'' {{convert|100.00|m2|abbr=on}}|''01 077–232:'' {{convert|85.00|m2|abbr=on}}}}
| cylindercount    = Two, outside
| cylindersize     = {{ubl|''01 001–010:'' {{convert|650|x|660|mm|in|2|abbr=on}}|''01 012–232'': {{convert|600|x|660|mm|in|2|abbr=on}}}}
| cylinderpressure = 
| valvegear        = [[Walschaerts]] (Heusinger) with lifting links
| valvetype        = Piston Valve
| valvetravel      = 
| valvelap         = 
| valvelead        = 
| transmission     = 
| trainheating     = Steam
| locobrakes       = [[Knorr air brake]]
| locobrakeforce   = 
| trainbrakes      = [[Railway air brake|Air]]
| safety           = 
| coupling         = Screw Link
| maxspeed         = forwards: {{convert|120|or|130|km/h|mph|0|abbr=on}}<br />backwards: {{convert|50|km/h|mph|0|abbr=on}}
| indicatedpower   = {{convert|2240|PS|kW hp|sigfig=3|abbr=on}}
| tractiveeffort   = 
| factorofadhesion = 
| operator         = DR
| operatorclass    = 
| powerclass       = 
| numinclass       = 
| fleetnumbers     = 
| officialname     = 
| nicknames        = 
| axleloadclass    = 
| locale           = 
| deliverydate     = 
| firstrundate     = 
| lastrundate      = 
| retiredate       = 1982
| withdrawndate    = 
| preservedunits   = 
| restoredate      = 
| scrapdate        = 
| currentowner     = 
| disposition      = 17 Preserved, remainder scrapped
| notes            = 
}}
The [[Deutsche Reichsbahn-Gesellschaft]]'s '''BR 01''' [[steam locomotive]]s were the first standardised (''[[Einheitsdampflokomotive]]'') steam express passenger locomotives built by the unified German railway system. They were of [[4-6-2]] "Pacific" [[wheel arrangement]] in the [[Whyte notation]], or 2′C1′ h2 in the [[UIC classification]]. The idea of standardisation was that it would reduce maintenance costs; i.e. if a BR 01 whose engine shop was in, say, [[Berlin]] broke down in [[Dresden]], instead of having to ship the necessary part from Berlin and take the [[locomotive]] out of service, a part from the Dresden shop could be used as all of the engines, parts, and workings were exactly the same and produced nationwide. Thus it was a "standard" product for engine shops.

==History==
[[File:01 046 RAW Nied 1938.jpg|thumb|left|DRG steam locomotive 01 046 at the former RAW in [[Frankfurt (Main)|Frankfurt am Main]]-[[Nied (Frankfurt am Main)|Nied]] in the year 1938]]
[[File:01 118 Koenigstein 28052007 01.JPG|thumb|left|[[Manufacturer's plate]] of 01 118 of the [[Frankfurt Historic Railway]]]]
The firms of [[AEG (German company)|AEG]] and [[Borsig]], who were the main manufacturers of these engines, together with [[Henschel]], [[Lokomotivbau Hohenzollern|Hohenzollern]], [[Krupp]] and [[Berliner Maschinenbau|BMAG previously Schwartzkopff]], delivered a total of 231 examples of this ''[[Einheitsdampflokomotive]]'' between 1926 and 1938 for the fast passenger services of the [[Deutsche Reichsbahn]].

To begin with, 10 locomotives of this class were built with two-[[cylinder (locomotive)|cylinder]] engines for comparison purposes alongside a similar batch of 10 engines of their sister [[DRG Class 02|Class 02]], which had four-cylinder [[compound locomotive|compounding]]. Extensive measurement and trial runs were conducted, but after lengthy discussions the controversial decision finally fell in favour of the two-cylinder configuration, which was simpler to maintain but less powerful and less economical than the four-cylinder compounds.

The first '''Class 01''' locomotive that went into service was not 01&nbsp;001, but 01&nbsp;008, which is preserved today in the [[Bochum-Dahlhausen Railway Museum]]. The mass production of Class 01s was somewhat delayed at first because in the 1920s there were neither enough routes with the necessary [[axle load]] of 20&nbsp;tons nor sufficiently large [[turntable (rail)|turntables]]. Not until the beginning of the 1930s did the Class 01 become the predominant [[express train]] locomotive of the Deutsche Reichsbahn. By 1938 there were 231 Class 01 locomotives available for the prestigious express train duties. Another 10 four-cylinder Class 02 locomotives (01&nbsp;111, 01&nbsp;233–241) were converted to two-cylinder Class 01 models between 1937 and 1942. To accommodate for the many routes with axle load restrictions too low for Class 01 service, in the early 1930s, a third variant was created: the [[DRG Class 03|Class 03]] designed with a two-cylinder engine and axle load of 18&nbsp;ton, of which no less than 298 were built. Launched in 1939, the three-cylinder [[DRG Class 01.10]] was a further development of the 01.

A total of five series or batches were delivered, each with minor variations: 01&nbsp;001–010 (1926), 01&nbsp;112–076 (1927–28), 01&nbsp;077–101 (1930–31), 01&nbsp;102–190 (1934–1936), 01&nbsp;191–232 (1937–1938).

Even in the 1930s the employment of Class 01s was limited to the relatively few routes that had already been modified to take a 20-ton axle load. From [[Berlin]] outwards they were the [[Anhalt]], [[Lehrte]] and [[Hamburg]] lines. The Berlin City Railway had first to be strengthened by reinforcing the viaduct arches. Up to 1930, the first 90 engines were stationed at the locomotive depots of [[Essen]], [[Nuremberg]], [[Erfurt]] P, [[Berlin]] Ahb, [[Hamm, North Rhine-Westphalia|Hamm]], [[Magdeburg]] Hbf, [[Kassel]], [[Hanover]], [[Hamburg]] [[Altona, Victoria|Altona]], [[Bebra]] and [[Offenburg]]. From 1931 they were also stabled at [[Frankfurt]] (M) 1, Berlin Leb, [[Braunschweig]], Berlin Pog, [[Schneidemühl]], [[Königsberg]], [[Göttingen]] P, [[Paderborn]], [[Dresden]] Alt, [[Breslau]], [[Cologne]] Deutzerfeld, [[Hof, Germany|Hof]] and [[Halle, Saxony-Anhalt|Halle]] P.

[[File:01 118 Frontal.jpg|thumb|left|Locomotive 01 118 of the Frankfurt Historic Railway]]
[[File:Fuehrerstand01008.jpg|thumb|left|View of the driver's cab on locomotive 01 008]]
Originally, the Class 01's top speed was restricted to 120&nbsp;km/h. In order to raise this to 130&nbsp;km/h, the diameter of the [[leading wheels]] was changed from its original 850&nbsp;mm to 1,000&nbsp;mm on locomotives from operating number 01&nbsp;102 onwards and brake effort was increased by installing double-sided working of the brake shoes on the [[coupled wheels]] and by braking the [[trailing wheels]]. The air and feed pumps were located in [[smokebox]] recesses behind the large ''[[Richard Paul Wagner|Wagner]]'' [[smoke deflectors]], which had been fitted from 01 077 onwards. (Earlier models were also refitted with ''Wagner'' type deflectors later). This made access to the pumps for maintenance purposes more difficult and later ''[[Einheitsdampflokomotive|Einheitslok]]s'' had their pumps located in the middle of the vehicle on delivery. The [[Deutsche Bundesbahn]] converted their engines to the smaller ''Witte'' [[smoke deflectors]] and moved the pumps to the running board in the centre of the vehicle. The [[Deutsche Reichsbahn (East Germany)|Deutsche Reichsbahn]] in [[East Germany]] shied away from such major changes to the load distribution, so that only minor modifications in appearance can be seen even in their last years.

From the third series (01&nbsp;077 et seq.) the [[boiler]]s were delivered with longer smoke tubes and thus a shorter [[firebox (locomotive)|firebox]]. All engines originally had a central lock for the smokebox door. The first locomotives had gas lighting on delivery; from 01&nbsp;010 they had electrical lighting and the last few batches were given a third headlight.

The Class 01s were equipped with 2'2&nbsp;T&nbsp;30, 2'2'&nbsp;T&nbsp;32 or 2'2'&nbsp;T&nbsp;34 [[tender locomotive|tenders]]. Their coal capacity was 10&nbsp;tons of stone coal, and the water tank held either 30, 32 or 34&nbsp;cubic metres of water. The prototype locomotives, 01 001 to 01 010, were supplied with the smaller 2'2 T 30 tenders, because there were not enough large turntables around. Later these tenders were only used if they were absolutely necessary, e.g. in cross-border services with the [[Netherlands]]. From the second series (01&nbsp;012 et seq.) on, the Class 01 was furnished with rivetted 2'2'&nbsp;T&nbsp;32 tenders. The welded tenders, class 2'2'&nbsp;T&nbsp;34, appeared only by way of exchange (mainly from brand new [[DRG Class 44|Class 44]]) locomotives. Thereafter they were almost the only ones used during the war years and after the [[Second World War]], because they had a larger water capacity.

Class 01 locomotives remained in service with the Deutsche Bundesbahn until 1973. In the DR, they were still working up to the early 1980s, largely in their original state with large [[smoke deflectors]]. They were legendary in their last years for hauling the D-Zug services on the Berlin-Dresden route up to autumn 1977. Only when the large Soviet [[DR Class 132]] diesel locomotives arrived, the Class 01 express train locomotives were finally forced out of scheduled services in the [[GDR]] after almost 50 years.

{{Clear}}

==Rebuilds==

=== Rebuilds 1950 to 1957 (DB) ===
{{Infobox locomotive
| name             = Henschel mixer preheater rebuild
| bgcolor          = A00
| color            = FFF
| hatnote          = Only changes from standard version shown
| image            = 
| alt              = 
| caption          = 
| designer         = 
| rebuilder        = 
| rebuilddate      = 
| numberrebuilt    = 
| axleload         = {{convert|19.9|t}}
| weightondrivers  = {{convert|59.7|t}}
| emptyweight      = {{convert|99.4|t}}
| serviceweight    = {{convert|111.1|t}}
| locoweight       = 
| tenderweight     = 
| locotenderweight = 
| tendertype       = 
| fireboxtype      = <!-- Round-top, Belpaire, combustion chamber, etc. -->
|  firearea        = {{convert|4.31|m2|abbr=on}}
| boiler           = <!-- Watson Standard no. x, etc -->
|  boilertype      = <!-- Domeless, etc -->
|  pitch           = <!-- height of boiler centreline above the railhead -->
|  diameterinside  = 
|  lengthinside    = {{convert|5800|mm|ftin|frac=16|abbr=on}}
|  smalltubediameter= {{convert|54|mm|in|frac=16|abbr=on}}, 105 off
|  largetubediameter= {{convert|143|mm|ft|frac=16|abbr=on}}, 41 off
| boilerpressure   = 
| safetyvalvetype  = <!-- Salter spring balance, Ramsbottom, Pop, etc. -->
| feedwaterheater  = 
| totalsurface     = {{convert|216.23|m2|abbr=on}}
|  tubearea        = {{convert|93.75|m2|abbr=on}}
|  archarea        = 
|  fluearea        = {{convert|100.48|m2|abbr=on}}
|  tubesandflues   = 
|  fireboxarea     = {{convert|22.00|m2|abbr=on}}
| superheatertype  = 
|  superheaterarea = {{convert|95.00|m2|abbr=on}}
| indicatedpower   = {{convert|2450|PS|kW hp|sigfig=3|abbr=on}}
| operator         = 
| operatorclass    = 
| powerclass       = 
| numinclass       = 
| fleetnumbers     = 
| retiredate       = 
| preservedunits   = 
| scrapdate        = 
| disposition      = 
| notes            = 
}}
In 1950 and 1951, the [[Deutsche Bundesbahn]] converted locomotives 01&nbsp;042, 01&nbsp;046, 01&nbsp;112, 01&nbsp;154 and 01&nbsp;192. They were enhanced with a ''Heinl'' mixer preheater by [[Henschel]] and a turbo feed pump. In addition [[Firebox (steam engine)#Combustion chamber|combustion chambers]] were installed in the [[boiler]]s. Finally the conversion was rounded off with the replacement of the original [[smoke deflectors]] by ''Witte'' deflectors, which in spite of their considerably smaller size were just as effective as their larger predecessors. Four of the five modified locomotives remained in service until 1968.
{{Clear}}

===Rebuilds 1957 to 1961 (new DB boiler)===
{{Infobox locomotive
| name             = New DB boiler design rebuild
| bgcolor          = A00
| color            = FFF
| hatnote          = Only changes from standard version shown
| image            = 
| alt              = 
| caption          = 
| designer         = 
| rebuilder        = 
| rebuilddate      = 
| numberrebuilt    = 
| axleload         = {{convert|19.3|t}}
| weightondrivers  = {{convert|57.7|t}}
| emptyweight      = {{convert|96.6|t}}
| serviceweight    = {{convert|108.3|t}}
| locoweight       = 
| tenderweight     = 
| locotenderweight = 
| fireboxtype      = <!-- Round-top, Belpaire, combustion chamber, etc. -->
|  firearea        = {{convert|3.96|m2|abbr=on}}
| boiler           = <!-- Watson Standard no. x, etc -->
|  boilertype      = <!-- Domeless, etc -->
|  pitch           = <!-- height of boiler centreline above the railhead -->
|  diameterinside  = 
|  lengthinside    = {{convert|5000|mm|ftin|frac=16|abbr=on}}
|  smalltubediameter= {{convert|54|mm|in|frac=16|abbr=on}}, 96 off
|  largetubediameter= {{convert|143|mm|in|frac=16|abbr=on}}, 46 off
| boilerpressure   = 
| safetyvalvetype  = <!-- Salter spring balance, Ramsbottom, Pop, etc. -->
| feedwaterheater  = 
| totalsurface     = {{convert|193.09|m2|abbr=on}}
|  tubearea        = {{convert|73.93|m2|abbr=on}}
|  archarea        = 
|  fluearea        = {{convert|97.16|m2|abbr=on}}
|  tubesandflues   = 
|  fireboxarea     = {{convert|22.00|m2|abbr=on}}
| superheatertype  = 
|  superheaterarea = {{convert|100.54|m2|abbr=on}}
| indicatedpower   = {{convert|2330|PS|kW hp|sigfig=3|abbr=on}}
| operator         = 
| operatorclass    = 
| powerclass       = 
| numinclass       = 
| fleetnumbers     = 
| retiredate       = 
| withdrawndate    = 
| preservedunits   = 
| disposition      = 
| notes            = 
}}
From 1957 the Deutsche Bundesbahn rebuilt a further 50&nbsp;vehicles. These engines were given welded, high-performance, steam boilers, which had already been used on the [[DRG Class 01.10]]. In addition a new mixer [[preheater]] system was installed in the smokebox and numerous friction bearings were replaced by [[roller bearing]]s. Changes to the cylinder block, running board, a shorter chimney, front apron (''Frontschürze'') and [[locomotive frame]], as well as the missing feedwater dome, all gave the locomotives a different external appearance.
[[File:Reboilered 01.jpg|thumb|centre|Reboilered 01 class near Hof at Easter 1972.]]
{{Clear}}

===DR ''Reko'' locomotive 01.5===
[[File:BR 01 519 plandampf schifferstadt 100 2076.jpg|thumb|Rekolok 01 519]]
{{Main|DR Class 01.5}}
From 1962, the ''Reichsbahn'' repair shop (''Reichsbahnausbesserungswerk'') at [[Meiningen]] rebuilt 35&nbsp;Class 01 engines for the [[Deutsche Reichsbahn (East Germany)|DR]] under the direction of the research and trials division ''[[VES-M Halle]]''. Like the DB, they selected only those locomotives with more powerful brakes (from 01 102). All these locos were fitted with new ''Witte'' [[smoke deflectors]] with tapered edges, a new driver's cab and a new boiler, positioned higher on the frame. The boiler had a combustion chamber, a mixer preheater and a continuous cover for the dome.

==Preserved locomotives==
[[File:01 118 Koenigstein 28052007 03.JPG|thumb|01&nbsp;118 at Bahnhofsfest Königstein Pfingsten 2007 seen from front above]]
[[File:01 118 Koenigstein 28052007 02.JPG|thumb|01&nbsp;118 at Bahnhofsfest Königstein Pfingsten 2007 seen from back above]]
[[File:Running gear of 01 533 in Lindau Hbf.jpg|thumb|01 533 in [[Lindau (Bodensee)|Lindau]] Hbf]]

===Operational locomotives===
Only a few locomotives of the original design have been preserved unchanged over the course of time.

Of the two-cylinder Class 01 engines, the following are currently operational:
* 01&nbsp;118, built in 1934, is the only one to have been operational without interruption until today. After the war it was in service with the DR; since 1981 it has belonged to the [[Historic Railway, Frankfurt]] (''Historische Eisenbahn Frankfurt''). From its base in Frankfurt Osthafen it is regularly used for museum services, including on the [[Frankfurt Harbour Railway]] (''Frankfurter Hafenbahn'').
* Another operational locomotive of this class is 01&nbsp;066, built in 1928 by [[Berliner Maschinenbau|Schwartzkopff]] and which was on duty with the Deutsche Reichsbahn until 1977. Thereafter it was used as a heating engine until 1989 in the VEB Genthin washing powder factory in [[Nauen]]. The [[Bavarian Railway Museum]] in [[Nördlingen]] rebuilt the partly preserved locomotive in the [[Meiningen Steam Locomotive Works]] from individual components from other locomotives, including those of other classes – and put it back in service in summer 1993.
* The third operational locomotive is 01&nbsp;202, that is worked by the ''Verein Pacific 01&nbsp;202'' in Switzerland. This loco was last in service with the DB and had ''Witte'' smoke deflectors. It has retained its original boiler, but lost the front apron. After its retirement in 1975, the engine was rebuilt again over 20 years with great initiative and made operational again. It was given a red livery stripe on the tender at the height of the running plate.
* Locomotive 01 116, which was built in 1934 with factory no. 1413 by [[Krupp]] and rebuilt in 1964/65 at RAW Meiningen, runs today as 01&nbsp;533 with [[ÖGEG]] in [[Austria]].
* 01 150 – DB Museum locomotive in DB configuration with ''Witte'' smoke deflectors. A new [[DLW Meiningen]] boiler was installed in 2012. On 17 October 2005 it was badly damaged by the great fire at the Nuremberg/Gostenhof locomotive depot. After inspecting the badly damaged steam engine at DLW Meiningen, DB AG initially intended just to carry out a cosmetic refurbishment; but after a donation marathon initiated by the last engine driver, Olaf Teubert, who collected nearly €1M within two years, a full operational restoration was enabled from 2011 to 2012.  Since May 2013 the restored steam engine has been made operationally ready for use on the German railway network again.

===Non-operational locomotives===
In addition there are several Class 01 and 01.5 locomotives that have been preserved as non-operational exhibits:

* 01 005 – [[Dresden Transport Museum]], ex-DR, largely in original configuration
* 01 008 – [[Bochum-Dahlhausen Railway Museum]] (the first 01 in service), in DB configuration (''Witte'' smoke deflectors, original boiler)
* 01 111 – [[German Steam Locomotive Museum]] [[Neuenmarkt]] (not operational), largely in original configuration
* 01 137 – [[DB Museum]] locomotive, largely in original configuration
[[File:Pacific 01 150 at Regensburg 1973.jpg|thumb|centre|001 150-2 waits to leave Regensburg with a train for Hof, August 1973.]]
* 01 164 – [[German Steam Locomotive Museum]] [[Neuenmarkt]], in DB configuration (''Witte'' smoke deflectors, original boiler)
* 01 173 – Privately owned, on loan to the [[Deutsches Technikmuseum Berlin]], in DB configuration (''Witte'' smoke deflectors, original boiler)
* 01 204 – Privately owned, largely in original configuration
* 01 220 – Monument locomotive in [[Treuchtlingen]], DB Museum locomotive, in DB configuration (''Witte'' smoke deflectors, new DB boiler)
* 01 509 (ex 01 143) - [[Ulm Railway Friends]] (oil-fired, currently in for repairs at [[Meiningen Steam Locomotive Works]] due to boiler damage.
* 01 514 (ex 01 208) - [[Technik Museum Speyer]]
* 01 519 (ex 01 186) - [[Eisenbahnfreunde Zollernbahn]]
* 01 531 (ex 01 158) - [[Nuremberg Transport Museum]]; museum loco at [[Arnstadt]] locomotive depot, currently not operational.

==PC games==

* The engine is featured in the 2006 PC game, [[Sid Meier's Railroads!]], as an engine available for purchase in German scenario, albeit missing a tender and several key details.

==See also==
* [[List of DRG locomotives and railbuses]]
* [[List of preserved steam locomotives in Germany]]

==References==
<references />
* {{cite book| last = Weisbrod| first = Manfred| title = Baureihe 01 Geschichte, Bau und Bewährung einer Schnellzuglokomotive| year = 1999| publisher = Transpress| isbn = 978-3-344-70769-9 }}
* {{Hütter-01bis45|pages=57–65}}
* {{cite book |last1=Maidment |first1=David |title=The German Pacific Locomotive: Its Design and Development |series=Locomotive Portfolios series |date=2017 |publisher=Pen & Sword Transport |location=Barnsley, South Yorkshire, UK |isbn=9781473852495}}
* {{cite journal| first=Gustav| last=Nagel| title=Dampf, letzter Akt. 1962: Die Rekonstruktion der Baureihe 01 beginnt| journal=Lok Magazin| issue=248| volume=41| year=2002| publisher=GeraNova Zeitschriftenverlag GmbH| location=München| issn=0458-1822| pages=92–95}}
* {{cite journal| first=Peter| last=Melcher| title=Vom Winde verweht ... . Abschied von der DB-01| journal=Lok Magazin| issue=263| volume=42| year=2003| publisher=GeraNova Zeitschriftenverlag GmbH| location=München| issn=0458-1822| pages=104–111}}
* {{cite book| last = Koschinski| first = Konrad| title = Legendäre Baureihe 01 Extra-Kapitel Museumslokomotiven; Statistik| year = 2006| publisher = Verlag-Gruppe Bahn| isbn = 978-3-89610-156-3 }}
* {{Weisbrod-EFA1.1 |pages=16–25, 240–241}}

{{Commons category|DRG Class 01}}
{{DRG locomotives}}

{{DEFAULTSORT:Drg Class 01}}
[[Category:Steam locomotives of Germany|01]]
[[Category:4-6-2 locomotives]]
[[Category:Deutsche Reichsbahn-Gesellschaft locomotives|01]]
[[Category:AEG locomotives]]
[[Category:Borsig locomotives]]
[[Category:Henschel locomotives]]
[[Category:Krupp locomotives]]
[[Category:Railway locomotives introduced in 1926]]
[[Category:Hohenzollern locomotives]]
[[Category:Berliner locomotives]]
[[Category:Standard-gauge locomotives of Germany]]
[[Category:2′C1′ h2 locomotives]]
[[Category:Passenger locomotives]]