Saxon VT
| Kgl.Sächs.Sts.EB - type VT DR series 89.2 / 89.82 |
|||||
|---|---|---|---|---|---|
|
|||||
| Manufacturer: | Saxon machine factory , Chemnitz | ||||
| Design: | 1 | 2 | 3 | 4th | 5 |
| Years of construction: | 1872-1877 | 1883-1892 | 1895-1901 | 1914-1919 | 1920 |
| Numbering: | 1541-1570 89 8201-8215 |
1574-1591 89 8251-8267 |
1592-1674 89 8216-8221 89 201-269 |
1675-1690 89 281-294 |
1691 89 295 |
| Retirement: | until 1933 | until 1927 | until 1967 | 1951 | |
| Number: | 30th | 18th | 82 | 16 | 1 |
| Design type: | C n2t | ||||
| Gauge: | 1,435 mm | ||||
| Length over buffers: | 9,276 mm 9,356 mm |
approx. 9,587 mm | 9,635 mm | 9,680 mm 9,825 mm |
k. A. |
| Empty mass: | 31.7 t - 35.1 t | 34.7 | 33.1 t | 38.2 / 38.3 t | 37.4 t |
| Friction mass: | 40.6 t - 45 t | 43.0 | 42.0 t | 48.0 / 48.8 t | 47.3 t |
| Service mass: | 40.6 t - 45 t | 43.0 | 42.0 t | 48.0 / 48.8 t | 47.3 t |
| Axle travel mass: | 13.5 t - 15 t | 14.3 t | 14 t | 16.0 / 16.3 t | 15.8 t |
| Top speed: | 40 km / h | 40 km / h | 40 km / h | 50 km / h | 50 km / h |
| indicated performance: | k. A. | ||||
| Driving wheel diameter: | 1,390 mm | 1,390 mm | 1,240 mm | 1,260 mm | 1,260 mm |
| Control type: | Allan (inside) | ||||
| Cylinder diameter : | 406 mm | 457 mm | 400/430 mm | 430 mm | 430 mm |
| Piston stroke: | 610 mm | 610 mm | 600 mm | 600 mm | 600 mm |
| Boiler pressure: | 8.5 bar | 10 bar | 12 bar | 12 bar | 12 bar |
| Number of heating pipes: | 186 | 186 | 158 | 235 | 187 |
| Heating pipe length: | 4,080 mm | 4,080 mm | 3,730 mm | 3,170 m | 2,900 mm |
| Grate area: | 1.4 m² | 1.4 m² | 1.3 m² | 1.5 m² | 1.2 m² |
| Radiant heating surface: | 6.8 m² | 6.8 m² | 7.0 m² | 8.6 m² | 8.0 m² |
| Tubular heating surface: | 95.4 m² | 95.4 m² | 74.1 m² | 93.6 m² | 69.0 m² |
| Evaporation heating surface: | 102.2 m² | 102.2 m² | 81.1 m² | 102.2 m² | 77.0 m² |
| Locomotive brake : | Screw brake throw lever brake (from 1884) |
||||
| Train brake: | Westinghouse air brake (retrofitted) e.g. T. Lever brake |
||||
As Saxon genus V T have Royal Saxon State Railways triple coupled unpowered axles tank locomotives designated for light freight service and shunting. The Deutsche Reichsbahn classified the locomotives in the 89.2 and 89.82 series from 1925 .
history
A total of 154 such locomotives were built between 1872 and 1919. During this long period there have been extensive changes to the design. All locomotives were manufactured by the Saxon machine factory in Chemnitz .
Type 1, years of construction 1872 to 1878
The first VT had a very high steam dome with a spherical ceiling and were noticeable for the water boxes that reached up to the front buffer beam. They had a coupling wheel diameter of 1,400 mm; the axle load was 14 t; the boiler pressure was 10 bar.
The newly founded Deutsche Reichsbahn took over 14 of these locomotives after 1920 and classified them in the 89.82 series. Nine machines from the years 1872–1874 were given the numbers 89 8201 - 8209, six from the years 1877/78 received the numbers 89 8210 - 8215.
Type 2, years of construction 1884 to 1892
This version of the VT had coupling wheels with a diameter of 1,240 mm, a dome with a flat ceiling, a slightly higher driver's cab and shorter water tanks. The boiler pressure was still 10 bar.
The Deutsche Reichsbahn has taken over 17 locomotives with the numbers 89 8251 - 8267.
Type 3, years of construction 1895 to 1901
This series of the VT differed significantly from the older locomotives. The drive wheel diameter was now 1,260 mm, compared to design 1 and 2 with 1,420 mm, and the rear wall of the driver's cab was slightly drawn in in the lower area. The boiler pressure was raised to 12 bar.
Six locomotives from 1895 were classified by the Deutsche Reichsbahn in the 89.82 series with the numbers 89 8215 - 8221. These locomotives were retired by 1933. The 69 newer, not yet intended for retirement machines came like the type 1914-1919 in the class 89.2 and received the numbers 89 201-269. Another one was taken over in 1940 by the Oberhohndorf-Reinsdorfer Kohlenbahn (89 268 ").
Type 4, years of construction 1914 to 1919
The VTs built between 1914 and 1919 differed from their predecessors in that they had a coupling wheel diameter of 1,260 mm, a coal box behind the driver's cab, and a boiler center raised by 450 mm, which made the locomotives look much more modern than the older variants. The locomotives from 1914 had transition facilities to the train, which is why they were equipped with doors in the cab front walls and narrow water boxes. The locomotives from 1919 had slightly larger wheelbases and higher water tanks that were sloped at the front.
The Deutsche Reichsbahn classified the locomotives in the 89.2 series. Four locomotives of the 1914 version were given the numbers 89 281-284. The 1919 construction lot with ten locomotives was completely taken over as no. 89 285-294.
25 class 89.2 locomotives survived the Second World War and were still in shunting service at the DR until the 1960s.
Type 5, year of construction 1920
Another example was created on the basis of a boiler made for the Turkish State Railways TCDD, which could not be delivered because of the First World War . This boiler was used to complete another locomotive for the Saxon State Railroad, which was given the number 1691 in 1920. The locomotive was largely similar to the 1919 design, but had a much smaller Belpaire boiler. In 1925 it was given the new road number 89 295. The one-off was initially used in the Leipzig area and was later loaned to the Brüx steelworks as a works locomotive. Presumably it stayed there after the Second World War.
technical features
Despite the very long construction period of almost half a century, the main features of the locomotives remained the same. There was a further development, especially in the design of the boiler. Belpaire boilers were initially used, but later Crampton boilers were also used. The high, hemispherical steam dome was a special feature of the early designs.
Injectors were always used to feed the boiler , initially the Schau type, and later the Strube and Wintzer types. The last construction lot received Friedmann injectors.
The steam engine was designed as a two-cylinder engine with simple steam expansion. The middle coupling axle was driven. A common feature of all built locomotives was the internal all control with flat slides, which was also implemented in the locomotive built in 1920. The axles are rigidly mounted in the frame; due to the small wheel base, the weakening of the wheel flange on the driving axle was not necessary.
The vehicles of the first construction lot received a screw brake, which was common at the time, supplemented by a device for counter-steaming. Some locomotives also received lever brakes for the train. Later the locomotives were equipped with Westinghouse air brakes, which also only acted as train brakes.
literature
- Fritz Näbrich, Günter Meyer, Reiner Preuß: Lokomotivarchiv Sachsen 2. transpress VEB Verlag für Verkehrwesen, Berlin 1983, or Alba publication Alf Teloeken, Düsseldorf, ISBN 3-87094-096-4
- Erich Preuß , Reiner Preuß : Saxon State Railways . transpress Verlagsgesellschaft, Berlin 1991, ISBN 3-344-70700-0
- Manfred Weisbrod, Dieter Baezold, Horst J. Obermayer: The great type book of German steam locomotives. Transpress Verlag, Berlin, ISBN 3-344-70751-5
- Manfred Weisbrod: Saxony Report . Volume 6, Eisenbahn-Journal, Archiv 1 1998: Tender and narrow-gauge locomotives, railcars and special designs . Hermann Merker-Verlag, Fürstenfeldbruck 1998, ISBN 3-89610-028-9