DPO F
| DSB F (II) | |
|---|---|
 The F 654 of the Angelner steam railway in Kappeln
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| Numbering: | 423-427, 436-500, 651-700 |
| Number: | 120 |
| Manufacturer: | various (see text) |
| Year of construction (s): | 1898-1949 |
| Type : | C n2t |
| Gauge : | 1435 mm ( standard gauge ) |
| Length over buffers: | 9170 mm |
| Height: | 4000 mm |
| Width: | 2920 mm |
| Fixed wheelbase: | 3900 mm |
| Total wheelbase: | 3900 mm |
| Empty mass: | 30.5 t |
| Service mass: | 36.7 t (No. 651–665: 37.5 t) |
| Friction mass: | 36.7 t |
| Wheel set mass : | 12.2 t (No. 651–665: 12.5 t) |
| Top speed: | 50 km / h |
| Indexed performance : | 250 PS (184 kW) |
| Driving wheel diameter: | 1252 mm |
| Control type : | Allan, outside |
| Number of cylinders: | 2 |
| Cylinder diameter: | 406 mm |
| Piston stroke: | 560 mm |
| Boiler overpressure: | 12 kgf / cm² |
| Grate area: | 1.0 m² |
| Superheater area : | - |
| Evaporation heating surface: | 56.7 m² |
| Water supply: | 3.5 m³ |
| Fuel supply: | 1.5 t coal (No. 651–665: 2.3 t) |
| Locomotive brake: | Vapor barrier after conversion: compressed air brake |
| Train brake: | Air brake |
Various standard-gauge , three-axle tank locomotives ( wheel arrangement C) of the Danish State Railways (DSB) are grouped together as the DSB F series . Although all of these locomotives with a comparatively low maximum speed of 45 or 50 km / h were primarily designed for shunting service , some machines were used in line service on branch lines.
Between 1893 and 1949 a total of 132 locomotives were put into service; they belong to three different types:
DSB F (I)
JFJ No. F 61 - F 64
The four copies of this wet steam design were delivered to Jysk-Fyenske Jernbaner (JFJ) in 1873 by Hawthorn, Leslie & Company , Newcastle as C -tender locomotives with a two-axle tender and designated there as F 61-64. In 1889/90 they were separated from their tender in Århus and converted into tank locomotives with the same wheel arrangement.
When Jysk-Fyenske Jernbaner and Det Danske Jernbanedriftselskab merged on September 1, 1867, the locomotives came to the newly founded Danske Statsbaner . The pooling of equipment departments in the country took place only in 1892. In the newly established numbering plan, the locomotives were given the series designation DSB F . When further C-coupled tank locomotives were procured for shunting service from 1898, they were added to the F (I) series .
DSB F (II)
No. F 423 - F 427, F 436 - F 500, F 651 - F 700
In the years 1898/99, the Italian company Costruzioni Meccaniche di Saronno , a branch of the Esslingen machine factory , delivered the first ten copies of the F (II) series. Another 20 machines followed by 1903, built by Breda (Italy), Hanomag , Henschel and Smith, Mygind & Hüttemeier (Denmark). Two further delivery series were put into service from 1909 to 1914 (30 pieces) and from 1919 to 1923 (45 pieces); Suppliers were Borsig , Frichs (Denmark), Hanomag and Les Ateliers Métallurgiques Tubize (Belgium).
The uncomplicated and robust wet steam locomotives, whose design is reminiscent of the extremely successful Prussian T 3 , were to be found in practically all regions of Denmark in the period that followed. They proved themselves so well in both shunting and light line service on branch lines that in 1949 Frichs delivered a replica series of 15 machines of this now over 50-year-old design. The new locomotives only differed from their models in insignificant detail changes, such as an enlarged coal box and modern sleeve buffers . These last machines built still had an Allan control . It is likely to be the last European standard gauge steam locomotives to be equipped with this type of control.
The steam brakes for the locomotives that were present on delivery were replaced by air brakes in the 1940s.
Most of the F (II) series machines were retired by the late 1960s, as their duties were taken over by diesel locomotives . Nevertheless, a total of 13 copies, mainly from the replica series from 1949, have been preserved, some of them operational. In Germany, the F 654 (Frichs 358/1949) is regularly used as a locomotive for the museum train of the Angelner Steam Railway on the Kappeln (Schlei) - Süderbrarup route.
Technical data of the F (II): see info box.
DSB F (III)
No. F 428 - F 435
Eight locomotives of this reinforced and slightly enlarged design were built in 1917 by the Swiss Locomotive and Machine Works in Winterthur and, due to the war, were not delivered to DSB until 1918/19. In technical terms, these machines differed from those of series I and II mainly in the presence of a superheater and the Heusinger control used. Although the locomotives proved themselves excellently both in shunting and in service in Sønderjyllands (North Schleswig), they were not re-procured, as the simpler and cheaper wet steam versions were preferred. In the 1960s, all machines in the F (III) series were retired; only the F 428 has been preserved as a non-operational exhibit in the DSB Railway Museum in Odense .
Main characteristics of the F (III): drive wheel diameter 1252 mm; Maximum speed 50 km / h; Length over the buffers 9580 mm; Service weight 38.0 t; Boiler overpressure 12 kp / cm²; Grate area 1.0 m²; Evaporation heating surface 49.9 m²; Superheater heating surface 26.2 m²; Water supply 3.5 m³, coal supply 1.5 t.
Picture gallery
literature
- Torben Andersen: Dansk Jernbane history 1. Lokomotivet forlag, 2004.
- William Bay: Danmarks steam locomotives. Herluf Andersens Forlag, 1977.
- Josef O. Slezak: The locomotive factories in Europe. Slezak Verlag, 1962.
