DRG Class 01
| Industry | Railway locomotive manufacturing |
|---|---|
| Founded | 1926 |
| Headquarters | Germany |
| Products | Steam locomotives (BR 01 class) |
Overview
The BR 01 steam locomotives, developed by the Deutsche Reichsbahn-Gesellschaft, represent the first generation of standardized (Einheitsdampflokomotive) express passenger steam engines constructed for the unified German railway network. Featuring a 4-6-2 "Pacific" wheel configuration according to the Whyte notation, or classified as 2′C1′ h2 under the UIC classification, these locomotives were designed with uniformity in mind. The primary objective behind this standardization was to minimize maintenance expenses. For instance, should a BR 01 locomotive suffer a breakdown far from its home depot—such as an engine based in Berlin encountering issues in Dresden—it would not require parts to be transported from Berlin. Instead, components could be sourced locally from Dresden’s workshop because every unit, along with its parts and mechanisms, was manufactured identically across the country. This approach established the BR 01 as a truly "standardized" model for maintenance facilities nationwide.
History
The principal producers of these locomotives were the companies AEG and Borsig, supported by Henschel, Hohenzollern, Krupp, and BMAG, formerly Schwartzkopff. Collectively, they supplied 231 units of this Einheitsdampflokomotive model between 1926 and 1938, intended for the Deutsche Reichsbahn’s high-speed passenger services.
Initially, a series of ten locomotives equipped with two-cylinder engines was produced to compare against a similar batch of ten four-cylinder compound engines from the sister Class 02. After thorough testing and extensive evaluation, the decision—though debated—favored the simpler two-cylinder design, despite it being less powerful and less fuel-efficient than the four-cylinder compounds.
Interestingly, the first Class 01 locomotive to enter operation was not number 01 001 but rather 01 008, which today is preserved at the Bochum-Dahlhausen Railway Museum. Early mass production faced delays during the 1920s due to insufficient routes capable of supporting the required 20-ton axle load and a shortage of suitably large turntables. It was only in the early 1930s that the Class 01 became the primary express train locomotive for the Deutsche Reichsbahn. By 1938, a total of 231 Class 01 engines were assigned to prestigious express services. Additionally, between 1937 and 1942, ten four-cylinder Class 02 locomotives (numbers 01 111, and 01 233–241) were converted into two-cylinder Class 01s. To serve many routes with axle load limits below that of Class 01, a third variant—the Class 03—was developed in the early 1930s. Featuring a two-cylinder engine and an axle load of just 18 tons, this model saw production of no fewer than 298 units. The three-cylinder DRG Class 01.10, introduced in 1939, represented a further evolution of the original Class 01 design.
Five distinct series or production batches were delivered over time, each incorporating small modifications: units numbered 01 001–010 (1926), 01 012–076 (1927–28), 01 077–101 (1930–31), 01 102–190 (1934–36), and finally, 01 191–232 (1937–38).
During the 1930s, Class 01 locomotives were restricted to a limited number of routes that had been upgraded to support a maximum axle load of twenty tons. Key lines radiating from Berlin included the Anhalt, Lehrte, and Hamburg routes. Reinforcements such as strengthening viaduct arches on the Berlin City Railway were necessary before these locomotives could operate there. Up until 1930, the first ninety engines were based at depots including Essen, Nuremberg, Erfurt P, Berlin Ahb, Hamm, Magdeburg Hbf, Kassel, Hanover, Hamburg Altona, Bebra, and Offenburg. Starting from 1931, additional depots housing these locomotives included Frankfurt (M)1, Berlin Leb, Braunschweig, Berlin Pog, Schneidemühl, Königsberg, Göttingen P, Paderborn, Dresden Alt, Breslau, Cologne Deutzerfeld, Hof, and Halle P.
Originally designed with a maximum speed limit of 120 km/h, modifications were made to increase this to 130 km/h starting with unit number 01 102. This upgrade involved enlarging the diameter of the leading wheels from their initial size of 850 mm to one meter. Brake performance was also enhanced by implementing double-sided brake shoes on the coupled wheels and adding braking capability to the trailing wheels. The air and feed pumps were positioned within recesses in the smokebox behind large Wagner type smoke deflectors introduced from unit number 01 077 onward. Earlier models were retrofitted with these deflectors later on. However, this placement complicated maintenance access to pumps. Later Einheitslok designs addressed this by situating pumps centrally along the running board upon delivery. The Deutsche Bundesbahn further modernized their fleet by replacing Wagner deflectors with smaller Witte versions and relocating pumps mid-vehicle on the running board. In contrast, East Germany’s Deutsche Reichsbahn avoided such significant alterations to weight distribution; thus their locomotives retained mostly original external features up until retirement.
From the third production batch onward (starting at unit number 01 077), boilers were manufactured with longer smoke tubes resulting in shorter fireboxes. All locomotives originally featured a central locking mechanism on their smokebox doors. Initial deliveries included gas lighting systems; starting with unit number 01 010 electrical lighting became standard. The final batches were also equipped with an additional third headlight.
Class 01 locomotives operated with tenders classified as either 2'2 T 30, 2'2' T 32 or 2'2' T 34. These tenders could carry up to ten tons of stone coal along with water capacities ranging from thirty to thirty-four cubic meters depending on tender type. The prototype series (units 01 001 through 01 010) utilized smaller tenders (2'2 T 30) due to limitations imposed by turntable sizes at that time. Later on, these smaller tenders were reserved for specific cases such as cross-border operations involving the Netherlands. From unit number 01 012 onward, riveted tenders classified as 2'2' T 32 became standard equipment for Class 01 locomotives. Welded tenders rated as class 2'2' T 34 appeared mainly through exchanges with new locomotives like those from the Class 44. These larger capacity tenders dominated usage during World War II and continued in service afterward because of their increased water storage.
The Deutsche Bundesbahn continued operating Class 01 locomotives until their retirement in 1973. Meanwhile, East Germany’s Deutsche Reichsbahn maintained them largely in original condition—including their characteristic large smoke deflectors—well into the early eighties. These engines gained legendary status during their final years for hauling D-Zug express trains on routes such as Berlin-Dresden until autumn of 1977. It was only after introduction of powerful Soviet-built diesel locomotives like the DR Class 132 that Class 01 steam engines were fully withdrawn from scheduled service within the GDR after nearly half a century on duty.
Rebuilds from 1950 to 1957 (DB)
In the years 1950 and 1951, the Deutsche Bundesbahn undertook modifications on locomotives 01 042, 01 046, 01 112, 01 154, and 01 192. These units were upgraded with a Heinl mixer preheater supplied by Henschel along with a turbo feed pump. Additionally, boilers were fitted with combustion chambers. The original smoke deflectors were substituted by more compact yet equally efficient Witte deflectors. Of the five rebuilt locomotives, four remained operational until 1968.
Rebuilds from 1957 to 1961 (new DB boiler)
Starting in 1957, the Deutsche Bundesbahn carried out rebuilds on an additional 50 locomotives. These machines received welded, high-efficiency steam boilers that had previously been employed on the DRG Class 01.10. A new mixer preheater was incorporated within the smokebox, and many friction bearings were replaced with roller bearings. Modifications to the cylinder block, running board, reduced chimney height, front apron (Frontschürze), and locomotive frame, along with the elimination of the feedwater dome, resulted in a noticeably altered external design.
DR Reko locomotive 01.5
Beginning in 1962, the Reichsbahn maintenance facility (Reichsbahnausbesserungswerk) located in Meiningen undertook the reconstruction of 35 Class 01 locomotives for the DR, supervised by the research and testing division VES-M Halle. Similar to the DB approach, only those engines equipped with enhanced braking systems (from unit 01 102 onward) were chosen for rebuilding. These locomotives received modernized Witte smoke deflectors featuring tapered edges, a redesigned driver's cabin, and a newly installed boiler mounted higher on the chassis. The updated boiler incorporated a combustion chamber, a mixer preheater, and a continuous dome cover.
Preserved locomotives
Operational locomotives
Only a limited number of original-design locomotives have survived without major alterations.
Among the two-cylinder Class 01 engines, the following remain in operational condition:
- Locomotive 01 118, constructed in 1934, stands out as the sole engine continuously operational to this day. Post-World War II, it served with the DR and has been part of the Historic Railway, Frankfurt (Historische Eisenbahn Frankfurt) since 1981. Operating from Frankfurt Osthafen, it regularly performs museum runs, including on the Frankfurt Harbour Railway (Frankfurter Hafenbahn).
- Another functioning example is 01 066, built in 1928 by Schwartzkopff. It remained active with the Deutsche Reichsbahn until 1977 and subsequently served as a stationary heating engine until 1989 at the VEB Genthin detergent factory in Nauen. The Bavarian Railway Museum in Nördlingen restored this partially preserved locomotive at the Meiningen Steam Locomotive Works, utilizing components sourced from various other locomotives across several classes. It was returned to service in summer 1993.
- The third operational unit is locomotive 01 202, managed by the Verein Pacific 01 202 in Switzerland. This engine last operated under DB ownership and was equipped with Witte smoke deflectors. It still retains its original boiler but has lost its front apron. Following its retirement in 1975, it underwent an extensive two-decade restoration effort before being returned to working order. A distinctive red stripe was added along the tender at running plate height.
- Locomotive number 01 116, originally manufactured in 1934 with factory number 1413 by Krupp and rebuilt during 1964/65 at RAW Meiningen, now operates as 01 533 under the ownership of ÖGEG in Austria.
- Number 01 150 is preserved as a DB Museum locomotive in its DB configuration featuring Witte smoke deflectors. In 2012, it received a new boiler from DLW Meiningen. On October 17, 2005, it suffered severe damage due to a major fire at the Nuremberg/Gostenhof locomotive depot. Initially intended only for cosmetic repair after inspection at DLW Meiningen, a fundraising campaign led by its last driver Olaf Teubert raised nearly €1 million within two years. This enabled a comprehensive restoration project from 2011 to 2012. Since May 2013, this fully restored steam locomotive has been certified for active service on Germany’s railway network once again.
Non-operational locomotives
Several Class 01 and 01.5 locomotives have been preserved as static displays and are no longer in active service:
- 01 005 – Exhibited at the Dresden Transport Museum, originally from the DR, maintained mostly in its initial state
- 01 008 – Located at the Bochum-Dahlhausen Railway Museum (the very first 01 to enter service), presented in DB configuration featuring Witte smoke deflectors and the original boiler
- 01 111 – Displayed at the German Steam Locomotive Museum in Neuenmarkt, currently non-operational, retaining much of its original design
- 01 137 – Part of the DB Museum collection, preserved largely as originally built
- 01 164 – Preserved at the German Steam Locomotive Museum in Neuenmarkt, configured in DB style with Witte smoke deflectors and original boiler
- 01 173 – Privately owned and loaned to the Deutsches Technikmuseum Berlin, maintained in DB configuration with Witte smoke deflectors and original boiler
- 01 204 – Held privately, kept mostly in its original form
- 01 220 – A monument locomotive situated in Treuchtlingen, part of the DB Museum fleet, outfitted in DB configuration with Witte smoke deflectors and fitted with a modern DB boiler
- 01 509 (formerly 01 143) – Owned by the Ulm Railway Friends, oil-fired; presently undergoing repairs at Meiningen Steam Locomotive Works due to boiler damage
- 01 514 (formerly 01 208) – Housed at the Technik Museum Speyer
- 01 519 (formerly 01 186) – Preserved by the Eisenbahnfreunde Zollernbahn
- 01 531 (formerly 01 158) – Part of the Nuremberg Transport Museum collection; stationed as a museum locomotive at the Arnstadt depot, currently not operational. This unit was involved in the tragic 1939 Genthin rail disaster.
PC games
- The Class 01 locomotive appears in the PC game released in 2006, Sid Meier's Railroads!, where it can be purchased within the German scenario. However, it is depicted without a tender and lacks several important details.
See also
References
- Weisbrod, Manfred. Baureihe 01 Geschichte, Bau und Bewährung einer Schnellzuglokomotive. Transpress, 1999. ISBN 978-3-344-70769-9.
- Hütter-01bis45, pages 57–65.
- Maidment, David. The German Pacific Locomotive: Its Design and Development. Locomotive Portfolios series. Pen & Sword Transport, Barnsley, South Yorkshire, UK, 2017. ISBN 9781473852495.
- Nagel, Gustav. "Dampf, letzter Akt. 1962: Die Rekonstruktion der Baureihe 01 beginnt." Lok Magazin, no.248, vol.41, GeraNova Zeitschriftenverlag GmbH, München, 2002, pp.92–95.
- Melcher, Peter. "Vom Winde verweht ... . Abschied von der DB-01." Lok Magazin, no.263, vol.42, GeraNova Zeitschriftenverlag GmbH, München, 2003, pp.104–111.
- Koschinski, Konrad. Legendäre Baureihe 01 Extra-Kapitel Museumslokomotiven; Statistik. Verlag-Gruppe Bahn, 2006. ISBN 978-3-89610-156-3.
- Weisbrod-EFA1.1, pages16–25,240–241.