Prussian DT 2
| Prussian DT 2 | |
|---|---|
| Numbering: | DT 2. 11-12 |
| Number: | 2 |
| Manufacturer: | Hannoversche Maschinenbau-AG |
| Year of construction (s): | 1906 |
| Type : | (1A) 1 n2v |
| Gauge : | 1435 mm ( standard gauge ) |
| Length over buffers: | 16,490 mm |
| Length: | 15,415 mm |
| Trunnion Distance: | 8,500 mm |
| Fixed wheelbase: | 2,500 mm |
| Service mass: | 39 t |
| Wheel set mass : | 14 t |
| Top speed: | 50 km / h |
| Indexed performance : | 73.5 kW |
| Driving wheel diameter: | 1,000 mm |
| Impeller diameter: | 1,000 mm |
| Control type : | Valve control |
| Number of cylinders: | 2 |
| HD cylinder diameter: | 165 mm |
| LP cylinder diameter: | 300 mm |
| Piston stroke: | 320 mm |
| Boiler : | Tube plate boiler |
| Boiler overpressure: | 50 bar |
| Grate area: | 0.7 m² (coal) |
| Tubular heating surface: | 18.3 m² |
| Superheater area : | 3.02 m² |
| Evaporation heating surface: | 25.4 m² |
| Water supply: | 1.6 m³ |
| Fuel supply: | 0.8 t (coal) 0.6 m³ (oil) |
| Brake: | Throw lever brake |
| Seats: | 32 (3rd grade) 16 (4th grade) |
| Standing room: | 24 (4th grade) |
The Prussian DT 2 ( type Stoltz ) was a steam powered rail car operated by the Prussian State Railways . The two examples were procured in 1906 for testing railcars , but could not prevail against other railcars that were also tested.
history
At the beginning of the 20th century, the Prussian State Railways decided to test railcars. In addition to several benzene-powered and electric examples, steam railcars were also to be tested. As early as 1903, the Hanover Railway Directorate procured five steam railcars. However, these vehicles did not convince in operation.
In 1906 two more steam railcars were ordered from Hannoversche Maschinenbau AG , one of which was to be coal-fired and the other oil-fired. On June 25, 1908, the coal-fired model was delivered for a unit price of 54,200 gold marks . The test drives in the summer of 1908 were promising, so that it was used in normal passenger traffic from July 17, 1908 . The second, now oil-fired, car was delivered at the end of 1908. Initially, the vehicles were called Stoltz'sche steam railcars . In 1910 they were given the designation DT 2 , but in the same year the coal-fired car was parked as a spare part dispenser for the oil vehicle. The cause was the frequent technical defects in the railcars. Although the installation of other steam locomotive boilers was originally proposed, this was not carried out.
The whereabouts of the two cars is not exactly clear, one car was probably converted into a four-axle passenger car in 1922 .
technical features
Steam engine
The special feature of the steam railcars was the specially designed tubular plate boiler by engineer Stoltz (after which the railcars were initially named). The evaporation heating surface was formed by tube plates standing vertically in the upper furnace. The entire machine ran in an oil bath and was completely dustproof.
The water tank was attached below, the coal and oil supplies were stored next to the boiler. There was only a throw lever brake to brake the vehicle.
dare
The car corresponded to the Prussian passenger cars built at the time. The car body was riveted from profiled iron and had a sheet metal structure with a skylight .
The car was divided into three compartments . The 4.25 m long compartment behind the steam boiler was equipped with wooden benches and formed the 4th class . Since the benches were attached along the wall, it was also suitable as a load compartment for the passengers . In the middle of the car was a narrower compartment with a length of 1.85 m, which could later be converted into a second class compartment with upholstered benches due to its size. However, this was not done. The third compartment, which was 4.65 m long, was also designated for 3rd class.
Although really just for unidirectional operation provided the cars had fully equipped at both ends 's cabs .
commitment
First, the first car between Lehrte and Hanover was extensively tested. At the end of 1908, both cars were stationed in Limburg ad Lahn , where one of the two vehicles was parked as early as 1910.
literature
- Dieter Bäzold, Rolf Löttgers, Günther Scheingraber and others: Prussia Report, Volume 9: Cogwheel and narrow-gauge locomotives, railcars. Eisenbahn-Journal, Hermann Merker Verlag, Fürstenfeldbruck 1996
- Model railroader No. 4: Prussian steam railcars of the Stoltz design , April 1988, pp. 17-20