The Class03 steam engines were standard express train locomotives (Einheitslokomotiven) in service with the Deutsche Reichsbahn.
This article includes a list of references, related reading or external links, but its sources remain unclear because it lacks inline citations. (July 2016)
DRG Class 03
03 001 at the 2002 Dresden Steam Locomotive Festival
570mm (22+7⁄16in) on 03 001-003 originally 600mm (23+5⁄8in)
Piston stroke
660mm (26in)
Valve gear
outside Walschaerts
Train heating
Steam
Loco brake
automatic, single-chamber Knorr compressed air brakes to 03 162 coupled and bogie wheels, one-sided, from 03 163 both sides of coupled wheels and one-sided on trailing wheels
The Class03 engines were built between 1930 and 1938 as express train locomotives for routes that were only suitable for axle loads of up to 18tonnes. 298 examples of this engine, whose construction was based on the Class01, were built by the firms of Borsig, Krupp, Henschel, and Schwartzkopff.
Its reduced weight was achieved by the use of a light sectional frame, smaller boiler and smaller cylinders. From engine number 03123 onwards the pumps were located in the centre of the locomotive and from number 03163 the locos had larger leading wheels.
Locomotive number 03154 was equipped with a parabolic smokebox door, a tapered driver's cab and driving gear cover plates. Number 03193 was given a wine-red, streamlined, full covering and a 2′3T37St tender, in order to replace the Class05. 03204 and 03205 had driving gear cover plates for experimental purposes. Locomotive numbers 03175 and 03207 had Lentz valve gear, also as an experiment.
Until 1959, 145 Class03 locomotives were in the Deutsche Bundesbahn's operating fleet, of which 62engines (03005 to 03122) had air and feed pumps on the smokebox, small leading wheels (850mm diameter) and a top speed of 120km/h, 16machines (03127 to 03160) had air and feed pumps between the middle and rear driving wheels, small leading wheels (850mm diameter) and a top speed of 120km/h and 67engines (03164 to 03296) had air and feed pumps between the middle and rear driving wheels, scissor-block brakes (Scherenklotzbremsen), large leading wheels (1,000mm diameter) and a top speed of 130km/h.
In 1968 there were still 45units, now designated as Class003, remaining in the operational fleet. They were stabled at the following locomotive sheds: two at the Braunschweig shed, six at Bremen Main Station, 13 at Hamburg-Altona, one at Husum, 16 in Mönchengladbach and seven at Ulm.
The last ten locomotives of Class003 were on duty from 1971 at Ulm; in 1972 the last ones, nos. 003088, 003131 and 003268, were withdrawn from service.
The DR in East Germany had 86engines in its fleet. From 1962 they equipped their vehicles with mixer preheaters.
35 03 pacifics went to Poland after World War 2, along with ten streamlined 03.10s. The Polish version of the Class 03, the Pm2 (running number 34), can be seen at the railway museum in Warsaw.
The locomotives of this class had 2′2T30, 2′2′T32 and 2′2′T34 tenders.
See also
List of DRG locomotives and railbuses
Literature
Maidment, David (2017). The German Pacific Locomotive: Its Design and Development. Locomotive Portfolios series. Barnsley, South Yorkshire, UK: Pen & Sword Transport. ISBN9781473852495.
Troche, Horst (2006). Die Baureihe 03 (in German). Freiburg: EK-Verlag. ISBN978-3-88255-133-4.
Nagel, Gustav (2002). "Baureihe 03. Im Führerstand". Lok Magazin (in German). München: GeraNova Zeitschriftenverlag GmbH. 41 (248): 52–55. ISSN0458-1822.
Rotthowe, Ludwig (2002). "Und keiner wollte sie haben... . Die 03.10 bei der DB". Lok Magazin (in German). München: GeraNova Zeitschriftenverlag GmbH. 41 (252): 54–61. ISSN0458-1822.
Vetter, Klaus J. Das große Handbuch deutscher Lokomotiven (in German). Bruckmanns Spezial Verlag. ISBN3-7654-3764-6.
Weisbrod, Manfred; Müller, Hans; Petznik, Wolfgang (1976). Dampflokomotiven deutscher Eisenbahnen, Baureihe 01–39 (EFA 1.1) (in German) (3rded.). Düsseldorf: Alba Buchverlag. pp.39–45. ISBN3-87094-081-6.
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