DRG Class 99.21
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Built in 1929 by
German German(s) may refer to: * Germany (of or related to) ** Germania (historical use) * Germans, citizens of Germany, people of German ancestry, or native speakers of the German language ** For citizens of Germany, see also German nationality law **Ge ...
locomotive builder
Henschel & Son Henschel & Son (german: Henschel und Sohn) was a German company, located in Kassel, best known during the 20th century as a maker of transportation equipment, including locomotives, trucks, buses and trolleybuses, and armoured fighting vehic ...
, the
Deutsche Reichsbahn 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 ...
Class 99.21 was a unique
narrow gauge A narrow-gauge railway (narrow-gauge railroad in the US) is a railway with a track gauge narrower than standard . Most narrow-gauge railways are between and . Since narrow-gauge railways are usually built with tighter curves, smaller structu ...
0-4-0T steam
tank locomotive 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 locom ...
built for the
Wangerooge Island Railway The single track Wangerooge Island Railway (''Wangerooger Inselbahn'') is an unelectrified narrow gauge railway with a track gauge of located on the East Frisian island of Wangerooge off the northwestern coast of Germany. It is the most importa ...
on
Wangerooge Wangerooge is one of the 32 Frisian Islands in the North Sea located close to the coasts of the Netherlands, Germany and Denmark. It is also a municipality in the district of Friesland in Lower Saxony in Germany. Wangerooge is one of the East F ...
, one of the German-owned Friesian islands in the
North Sea The North Sea lies between Great Britain, Norway, Denmark, Germany, the Netherlands and Belgium. An epeiric sea, epeiric sea on the European continental shelf, it connects to the Atlantic Ocean through the English Channel in the south and the ...
.


History

For hauling eight-wheeled passenger coaches a more powerful locomotive was needed. After the procurement of
diesel locomotives A diesel locomotive is a type of railway locomotive in which the prime mover is a diesel engine. Several types of diesel locomotives have been developed, differing mainly in the means by which mechanical power is conveyed to the driving wheels ...
in 1958 she remained for a time as a reserve engine. She carried number 99 211. Today the locomotive is restored and is displayed as a monument on Wangerooge.


Technical Details

The inner
frame A frame is often a structural system that supports other components of a physical construction and/or steel frame that limits the construction's extent. Frame and FRAME may also refer to: Physical objects In building construction *Framing (con ...
of the locomotive was also used as a water tank. She was designed as a wet steam locomotive. 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, centr ...
had two shell rings and 90 heating tubes. The drive was achieved via a
Walschaerts valve gear The Walschaerts valve gear is a type of valve gear used to regulate the flow of steam to the pistons in steam locomotives, invented by Belgian railway engineer Egide Walschaerts in 1844. The gear is sometimes named without the final "s", since it ...
driving the third axle. The wheels on the centre axle were made without flanges to improve curve running. The engine could hold 0.6 tonnes of coal in side tanks either side of the boiler, and 1.8 m2 of water in the frame and in an attachment to the coal bunker. The engine was first equipped with electrical lighting in 1953.


Gallery


See also

*
List of DRG locomotives and railbuses The railway vehicle classes covered by this list of DRG locomotives and railbuses belonged to the ''Deutsche Reichsbahn-Gesellschaft'' or DRG (1924–37) and its successor, the ''Deutsche Reichsbahn'' or DRB (post 1937). The DRG (lit. German Imp ...


References

* * {{DEFAULTSORT:Drg Class 99.21 99.021 0-6-0T locomotives 99.021 Henschel locomotives Railway locomotives introduced in 1929 Metre gauge steam locomotives Individual locomotives of Germany C n2t locomotives