Prussian G 9
| Prussian G 9 DR series 55.23–24 ČSD series 427.05 PKP Tp5 |
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 Prussian G 9
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| Numbering: | DR 55 2301-2433 |
| Number: | 200 |
| Manufacturer: | Schichau works among others |
| Year of construction (s): | 1908-1911 |
| Retirement: | until 1961 |
| Type : | D n2 |
| Gauge : | 1435 mm ( standard gauge ) |
| Length over buffers: | 16,758 mm |
| Service mass: | 59.0 t |
| Friction mass: | 59.0 t |
| Wheel set mass : | 15.2 t |
| Top speed: | 45 km / h |
| Indexed performance : | 680 kW |
| Driving wheel diameter: | 1,250 mm |
| Number of cylinders: | 2 |
| Cylinder diameter: | 550 mm |
| Piston stroke: | 630 mm |
| Boiler overpressure: | 12 bar |
| Grate area: | 3.05 m² |
| Evaporation heating surface: | 197.58 m² |
| Tender: | pr 3 T 12 |
| Water supply: | 12.0 m³ |
The Prussian class G 9 was the last wet steam locomotive developed for the Prussian State Railways . Although a superheated steam locomotive was available with the G 8, a total of 200 vehicles were put into service between 1908 and 1911, first by Schichau and later by other locomotive factories. Since problems arose with the G 8, the superheated steam technology was not really trusted . The chassis was taken over from the G 7 , whereas the larger boiler was a new design. The G 9 remained inferior to the G 8 in terms of performance. At first, a number of machines were designated as G 7 , but later redesignated as G 9 . They mainly operated in ore traffic between the Ruhr area and the North Sea .
After the First World War , 58 machines were sent to Belgium , eight to Poland for the PKP , where they were run as the Tp5 series , and one to the Saar area .
133 pieces went to the Reichsbahn and were given the road numbers 55 2301–2433. 36 copies were converted to superheated steam engines in the 1920s, which led to an increase in performance and speed. The machines that had survived the Second World War were either retired (in the western zones until 1949, in the GDR as the last in 1961, 55 2361) or sold to private railways.
The CSD remained after 1945 two locomotives. They were designated as series 427.05 . They originally came from Poland as the Tp 5 series. In 1947 they were returned to the PKP.
The vehicles were a Schlepptender equipped the type pr 3 T 12 after sample sheet III-5b.
See also
literature
- Horst J. Obermayer: Paperback German steam locomotives . Franckh'sche Verlagshandlung, Stuttgart 1981, ISBN 3-440-03643-X .
- Manfred Weisbrod, Hans Müller, Wolfgang Petznick: Steam Locomotive Archive 2 . Transpress, Berlin 1978.
- Herbert Rauter, Manfred Weisbrod: Prussia Report Volume 5 . Hermann Merker Verlag, Fürstenfeldbruck 1992, ISBN 3-922404-22-7 .
Web links
Individual evidence
- ^ Herbert Rauter, Manfred Weisbrod: Prussia Report No. 5 . Hermann Merker Verlag GmbH, Fürstenfeldbruck 1992, ISBN 3-922404-22-7 , p. 86 .