Oldenburg G 7
DRG Class 55.62 |
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 An ex-Prussian G 7.1, no. 55 669, in Potsdam on 17 May 1993 |
| Type and origin |
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| Build date | 1912–1918 |
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| Total produced | 22 |
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| Specifications |
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Configuration:
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| • Whyte | 0-8-0 |
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| Driver dia. | 1,350 mm (4 ft 5 in) |
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| Adhesive weight | 58.6 t (57.7 long tons; 64.6 short tons) |
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| Service weight | 58.6 t (57.7 long tons; 64.6 short tons) |
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| Boiler pressure | 12 kgf/cm2 (1.18 MPa; 171 lbf/in2) |
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| Heating surface: | |
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| • Firebox | 2.23 m2 (24.0 sq ft) |
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| • Evaporative | 180.10 m2 (1,938.6 sq ft) |
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| Cylinders | 2, compound |
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| High-pressure cylinder | 500 mm (19+11⁄16 in) |
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| Low-pressure cylinder | 750 mm (29+1⁄2 in) |
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| Piston stroke | 660 mm (26 in) |
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| Performance figures |
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| Maximum speed | 45 km/h (28 mph) |
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| Career |
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| Numbers | - GOE: 231–235, 246–247, 251–255, 259–263, 272–276
- DRG: 55 6201–6213
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The Oldenburg G 7 steam locomotive was a class of German 0-8-0 locomotives produced for the Grand Duchy of Oldenburg State Railways (Großherzoglich Oldenburgische Eisenbahn). It was an eight-coupled engine, intended for heavy goods train duties, and was based on the Prussian G 7. It had a 1,660 mm diameter boiler located 2,820 mm above the top of the rails in the plate frame, and was equipped with a single Walschaerts valve gear as well as a Lentz valve gear. Thirteen were taken over by the Deutsche Reichsbahn, grouped into DRG Class 55.62 and given numbers 55 6201–55 6213.
See also
References
- Hütter, Ingo (2015). Die Dampflokomotiven der Baureihen 54 bis 59 der DRG, DRB, DB, und DR (in German). Werl: DGEG Medien. p. 262. ISBN 978-3-937189-85-7.
- Spielhoff, Lothar (1990). Länderbahn-Dampf-Lokomotiven. Band 1: Preußen, Mecklenburg, Oldenburg, Sachsen und Elsaß-Lothringen (in German). Stuttgart: Franckh'sche Verlagshandlung. ISBN 3-440-06145-0.
- Vandenberghen, J. (1989). La guerre 1914 - 1918 et les locomotives "Armistice", 3. Description des locomotives bavaroises, saxonnes, badoises, mecklebourgeoises, oldenbourgeoises (PDF) (in French). Brussels: SNCB. p. 59.
- Weisbrod, Manfred; Müller, Hans; Petznik, Wolfgang (1978). Dampflokomotiven deutscher Eisenbahnen, Baureihe 41–59 (EFA 1.2) (in German) (3rd ed.). Düsseldorf: Alba. pp. 130–132. ISBN 3-87094-082-4.
