Oldenburg T 5.1
| Oldenburg T 5.1 DRG Class 71.4 | |
|---|---|
| Number(s) | DRG 71 401–420 |
| Quantity | 20 |
| Manufacturer | Hanomag |
| Year(s) of manufacture | 1907–1921 |
| Retired | 1930 |
| Wheel arrangement | 2-4-2T |
| Axle arrangement | 1'B1' n2t |
| Gauge | 1,435 mm |
| Length over buffers | 11,685 mm |
| Overall wheelbase | 6,800/7,000* mm |
| Empty weight | 41.50 t |
| Service weight | 53.10 t |
| Adhesive weight | 30.00 t |
| Axle load | 15.0 t |
| Top speed | 75 km/h |
| Driving wheel diameter | 1,600 mm |
| Leading wheel diameter | 1,000 mm |
| Trailing wheel diameter | 1,000 mm |
| No. of cylinders | 2 |
| Cylinder bore | 430 mm |
| Piston stroke | 600 |
| Boiler Overpressure | 12 bar |
| Grate area | 156 m² |
| Evaporative heating area | 100.68 m² |
| * from 1911 | |
The Oldenburg Class T 5.1 was a German steam locomotive built for the Grand Duchy of Oldenburg State Railways as a tank engine for passenger train duties. Its design was based on that of the Prussian T 5.1.
The firm of Hanomag manufactured 20 units of the Oldenburg T 5.1 between 1907 and 1921. Like its Prussian sisters it had the defect of poor riding qualities at high speeds. As a result, during the delivery of these engines design changes were made to the running gear, for example the overall wheelbase was increased. But even these measures met with no success.
The Deutsche Reichsbahn took over all 20 locomotives in 1925 as DRG Class 71.4 and gave them numbers 71 401 to 71 420. They were retired by 1930.
See also
Literature
Spielhoff, Lothar (1990). Länderbahn-Dampf-Lokomotiven. Band 1: Preußen, Mecklenburg, Oldenburg, Sachsen und Elsaß-Lothringen. Stuttgart: Franckh'sche Verlagshandlung. ISBN 3-440-06145-0.
External links
- There is a relevant English-language forum at Railways of Germany
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