Bavarian D VIII
Encyclopedia
The Bavarian Class D VIII (bayerische D VIII) were saturated steam locomotives with the Royal Bavarian State Railways
(Königlich Bayerische Staatsbahn).
and Berchtesgaden
which had inclines of up to 40 per mille (4%). Krauss initially delivered three machines, that were given the railway numbers 904, 905 and 906. The powerful boiler
required a carrying axle that, based on a suggestion by Richard von Helmholtz, was designed as a trailing axle in the form of a Krauss-Helmholtz bogie
. Thus equipped the locomotives had good riding qualities on the faster downhill run that was carried out backwards, while, for the slower uphill journey, it was sufficient to have the front coupled axle in the lead.
In 1898 four more machines were acquired (Nos. 1906–1909), for the Ammersee Railway
and in 1903 another five. On these new engines the coal bunker lay behind the driver's cab, so that the distance between the third coupled axle and the trailing axle was increased by 200 mm and the total length of the locomotives by 500 mm. In addition, the Riggenbach counter-pressure brake from the first series was omitted. The boiler (apart from the location of the steam dome
) and the running gear, and hence also the performance, remained unchanged.
The Palatinate Railway
(Pfalzbahn) had received similar locomotives, the Class T 4.I
, that however were somewhat smaller and had smaller driving and carrying wheels.
took over nine of the ten locomotives of the first series and all nine of the second redesignating them as the DRG Class 98.6 with nos. 98 661–669 and 98 671 and 98 679. The first series was retired by 1933, the second by about 1937.
After the Second World War one vehicle went to the Austrian Federal Railways (Österreichische Bundesbahnen or ÖBB) and was in service there until 1958 as ÖBB 891.01.
. It was given the railway number 5.
Locomotive Nos. 1 and 3 were scrapped in 1957, nos. 2 and 5 were sold in 1956 to the Southern Chemical Factory (Südchemie-Werk) in Kelheim
.
Royal Bavarian State Railways
As a nation-state, Germany did not come into being until the creation of the German Empire in 1871 from the various German-speaking states such as Prussia, Bavaria, Saxony, Baden and Württemberg. By then each of the major states had formed its own state railway and these continued to remain...
(Königlich Bayerische Staatsbahn).
History
In 1888, new locomotives were needed for the route between FreilassingFreilassing
Freilassing is a municipality of some 16,000 inhabitants situated in the southeastern corner of Bavaria, Germany. It belongs to the "Regierungsbezirk" Oberbayern and the "Landkreis" of Berchtesgadener Land...
and Berchtesgaden
Berchtesgaden
Berchtesgaden is a municipality in the German Bavarian Alps. It is located in the south district of Berchtesgadener Land in Bavaria, near the border with Austria, some 30 km south of Salzburg and 180 km southeast of Munich...
which had inclines of up to 40 per mille (4%). Krauss initially delivered three machines, that were given the railway numbers 904, 905 and 906. The powerful boiler
Boiler
A boiler is a closed vessel in which water or other fluid is heated. The heated or vaporized fluid exits the boiler for use in various processes or heating applications.-Materials:...
required a carrying axle that, based on a suggestion by Richard von Helmholtz, was designed as a trailing axle in the form of a Krauss-Helmholtz bogie
Krauss-Helmholtz bogie
A Krauss-Helmholtz bogie is a mechanism used on a steam locomotive, where a carrying axle is connected to a coupled axle via a lever such that when the carrying axle swings to the side on going round a curve, it causes the coupled axle to move sideways in the opposite direction...
. Thus equipped the locomotives had good riding qualities on the faster downhill run that was carried out backwards, while, for the slower uphill journey, it was sufficient to have the front coupled axle in the lead.
Additional machines
In 1890 a further two locomotives were procured, followed by five more in 1893 (railway numbers 946, 947 and 1901–1905).In 1898 four more machines were acquired (Nos. 1906–1909), for the Ammersee Railway
Ammersee Railway
The Ammersee Railway is a 54 km long single-tracked main line in the provinces of Swabia and Upper Bavaria in southern Germany...
and in 1903 another five. On these new engines the coal bunker lay behind the driver's cab, so that the distance between the third coupled axle and the trailing axle was increased by 200 mm and the total length of the locomotives by 500 mm. In addition, the Riggenbach counter-pressure brake from the first series was omitted. The boiler (apart from the location of the steam dome
Steam dome
A Steam dome is a vessel fitted to the top of the boiler of a steam locomotive. It contains the opening to the main steam pipe and its purpose is to allow this opening to be kept well above the water level in the boiler...
) and the running gear, and hence also the performance, remained unchanged.
The Palatinate Railway
Palatinate Railway
The Palatinate Railway or Pfalzbahn was an early German railway company in the period of the German Empire prior to the First World War. It was formed on 1 January 1870, as the United Palatinate Railway based in Ludwigshafen, by the amalgamation of the following railway companies:*The Palatine...
(Pfalzbahn) had received similar locomotives, the Class T 4.I
Palatine T 4.I
The locomotives of Palatine Class T 4I were saturated steam tank engines operated by the Palatinate Railway. Krauss delivered four of them in 1895 and a further three in 1897. The development of these engines had been based on the second batch of Bavarian D VIII engines and they differed only in a...
, that however were somewhat smaller and had smaller driving and carrying wheels.
DRG Class
In 1925 the Deutsche Reichsbahn-GesellschaftDeutsche Reichsbahn-Gesellschaft
The Deutsche Reichsbahn – was the name of the German national railway created from the railways of the individual states of the German Empire following the end of World War I....
took over nine of the ten locomotives of the first series and all nine of the second redesignating them as the DRG Class 98.6 with nos. 98 661–669 and 98 671 and 98 679. The first series was retired by 1933, the second by about 1937.
After the Second World War one vehicle went to the Austrian Federal Railways (Österreichische Bundesbahnen or ÖBB) and was in service there until 1958 as ÖBB 891.01.
Augsburg Branch Line
The Augsburg branch line (Augsburger Localbahn or AL) bought three locomotives in 1913 from Krauss, that were the same as the D VIII's of the second series. The locomotives, numbered 1–3, performed very well on the, in places, very tight curves of the branch line, so that even in 1937 – based on drawings almost 40 years old – a fourth locomotive of this type was procured, this time from Krauss-MaffeiKrauss-Maffei
The Krauss-Maffei Wegmann GmbH & Co KG or simply Krauss-Maffei is an injection molding machine manufacturer and defence company based in Munich, Germany...
. It was given the railway number 5.
Locomotive Nos. 1 and 3 were scrapped in 1957, nos. 2 and 5 were sold in 1956 to the Southern Chemical Factory (Südchemie-Werk) in Kelheim
Kelheim
Kelheim is a municipality in Bavaria, capital of the district Kelheim. It is situated at the confluence of Altmühl and Danube. As of June 30, 2005, the town had a population of 15,667....
.
Literature
- Weisbrod, Bäzold, Obermayer: Das große Typenbuch deutscher Dampflokomotiven. Transpress Verlag ISBN 3-344-70751-5
- Siegfried Baum: Die Augsburger Localbahn. EK-Verlag ISBN 3-88255-444-4
External links
- There is a relevant English-language forum at Railways of Germany