The Bavarian Class D VI were German,

0-4-0 Under the Whyte notation for the classification of steam locomotives, represents one of the simplest possible types, that with two axles and four coupled wheels, all of which are driven. The wheels on the earliest four-coupled locomotives were ...

steam locomotives A steam locomotive is a locomotive that provides the force to move itself and other vehicles by means of the expansion of steam. It is fuelled by burning combustible material (usually coal, oil or, rarely, wood) to heat water in the locomot ...

of the

Royal Bavarian State Railways The Royal Bavarian State Railways (''Königliche Bayerische Staats-Eisenbahnen'' or ''K.Bay.Sts.B.'') was the state railway company for the Kingdom of Bavaria. It was founded in 1844. The organisation grew into the second largest of the German ...

(''Königlich Bayerische Staatsbahn''). They were light, twin-coupled,

saturated steam Steam is a substance containing water in the gas phase, and sometimes also an aerosol of liquid water droplets, or air. This may occur due to evaporation or due to boiling, where heat is applied until water reaches the enthalpy of vaporization ...

tank engine A tank locomotive or tank engine is a steam locomotive that carries its water in one or more on-board water tanks, instead of a more traditional tender. Most tank engines also have bunkers (or fuel tanks) to hold fuel; in a tender-tank locomot ...

s. Maffei supplied the first 30 locomotives from 1880 to 1883, and

Krauss Krauss is a German surname. Notable people with the surname include: * Alison Krauss (born 1971), American bluegrass musician * Alexander Krauß (born 1975), German politician * Alexis Krauss (born 1985), musician of the noise pop duo Sleigh Bells ...

delivered a further 23 up to 1894.

History

The Class D VI locomotives were procured for branch lines in flat terrain and had a maximum permitted

axle load An axle or axletree is a central shaft for a rotating wheel or gear. On wheeled vehicles, the axle may be fixed to the wheels, rotating with them, or fixed to the vehicle, with the wheels rotating around the axle. In the former case, bearing ...

of 12 tons. The first 44 locomotives had no side tanks. Water was stored in a

well tank A tank locomotive or tank engine is a steam locomotive that carries its water in one or more on-board water storage tanks, tanks, instead of a more traditional tender (rail), tender. Most tank engines also have Fuel bunker, bunkers (or fuel tank ...

, and coal in the driver's cab. The last nine locomotives, on the other hand, had short tanks on either side, in front of the driver's cab. That increased water capacity from 1.8 to 2.3 m² and coal capacity from 0.5 to 0.8 t. In the 1920s, several D VI's were on duty in the Palatinate (''Pfalz'') as pontoon locomotives at

Speyer Speyer (, older spelling ''Speier'', French: ''Spire,'' historical English: ''Spires''; pfl, Schbaija) is a city in Rhineland-Palatinate in Germany with approximately 50,000 inhabitants. Located on the left bank of the river Rhine, Speyer li ...

and Maximiliansau. In 1925 the

Deutsche Reichsbahn-Gesellschaft The ''Deutsche Reichsbahn'', also known as the German National Railway, the German State Railway, German Reich Railway, and the German Imperial Railway, was the German national railway system created after the end of World War I from the regiona ...

took over 26 vehicles as DRG Class 98.75 (''Baureihe 98.75''), five of which had side tanks. They were retired by the end of the 1920s and some were sold on as industrial locomotives. The final duties of former locomotive number 83, ''Berg'' (98 7508), delivered by Krauss in 1883, were in a peat factory in

Raubling Raubling is a municipality in the district of Rosenheim, in Bavaria, Germany. It is situated on the western bank of the river Inn, 7 km south of Rosenheim Rosenheim is a city in Bavaria, Germany. It is an independent city located in the ...

, where it was not taken out of service until 1964. This locomotive is the only surviving example of its class and is in the care of the

German Railway History Company The German Railway History Company (''Deutsche Gesellschaft für Eisenbahngeschichte'') or DGEG is a society concerned with the history of the railways. The objectives of the society are: * to generate and maintain interest and understanding for th ...

(''Deutsche Gesellschaft für Eisenbahngeschichte e. V.'' or ''DGEG'').

Technical features

The Class D VI was manufactured with a riveted

plate frame Plate may refer to: Cooking * Plate (dishware), a broad, mainly flat vessel commonly used to serve food * Plates, tableware, dishes or dishware used for setting a table, serving food and dining * Plate, the content of such a plate (for example: ...

that also acted as the water tank. The

boiler A boiler is a closed vessel in which fluid (generally water) is heated. The fluid does not necessarily boil. The heated or vaporized fluid exits the boiler for use in various processes or heating applications, including water heating, central h ...

was a riveted two-piece construction; the firebox, with its square cross-section, was arranged between the sole bars. Two

injector An injector is a system of ducting and nozzles used to direct the flow of a high-pressure fluid in such a way that a lower pressure fluid is entrained in the jet and carried through a duct to a region of higher pressure. It is a fluid-dynamic ...

s fed the boiler. The outside, twin-cylinder, saturated steam engine was furnished with a

Stephenson valve gear The Stephenson valve gear or Stephenson link or shifting link is a simple design of valve gear that was widely used throughout the world for various kinds of steam engines. It is named after Robert Stephenson but was invented by his employees. ...

; the second axle was the

driving axle On a steam locomotive, a driving wheel is a powered wheel which is driven by the locomotive's pistons (or turbine, in the case of a steam turbine locomotive). On a conventional, non-articulated locomotive, the driving wheels are all coupled tog ...

. For the first time on Bavarian locomotives, running plates and Hardy vacuum brakes were installed on these saturated-steam engines. Several examples had gangways as well. An unusual feature was the location of the

sandbox A sandbox is a sandpit, a wide, shallow playground construction to hold sand, often made of wood or plastic. Sandbox or Sand box may also refer to: Arts, entertainment, and media * Sandbox (band), a Canadian rock music group * Sandbox ( ...

under the running plate between the

coupled axles On a steam locomotive, a driving wheel is a powered wheel which is driven by the locomotive's pistons (or turbine, in the case of a steam turbine locomotive). On a conventional, non-articulated locomotive, the driving wheels are all coupled tog ...

. They had slide valves on top and outside Stephenson link motion., p. 279

References

* * {{DEFAULTSORT:Bavarian D 06 0-4-0T locomotives D 06 Standard gauge locomotives of Germany Krauss locomotives Maffei locomotives Railway locomotives introduced in 1880 B n2t locomotives Shunting locomotives

History

Technical features

See also

References