|Wheel arrangement

Whyte notation

The Whyte notation for classifying steam locomotives by wheel arrangement was devised by Frederick Methvan Whyte and came into use in the early twentieth century encouraged by an editorial in American Engineer and Railroad Journal...

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BLE No. 44 DRG 79 001II
Technical Data
2-4-2 2-4-2 Under the Whyte notation for the classification of steam locomotives, 2-4-2 represents the wheel arrangement of two leading wheels on one axle, four powered and coupled driving wheels on two axles, and two trailing wheels on one axle... T >- |Axle arrangement UIC classification The UIC classification of locomotive axle arrangements describes the wheel arrangement of locomotives, multiple units and trams. It is set out in the International Union of Railways "Leaflet 650 - Standard designation of axle arrangement on locomotives and multiple-unit sets". It is used in much...	>- |Length over buffers Buffer (rail transport) A buffer is a part of the buffers-and-chain coupling system used on the railway systems of many countries, among them most of those in Europe, for attaching railway vehicles to one another....	>- |Ø Driving wheels	>- |Ø Leading wheels	>- |Ø Trailing wheels	>- |Power	>- |Top speed	>- |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:...  overpressure Overpressure The term Overpressure is applied to a pressure difference, relative to a "normal" or "ambient" pressure, in various circumstances:* In engineering: the pressure difference over the wall thickness of a pressure vessel...	>- |Axle load Axle load The axle load of a wheeled vehicle is the total weight felt by the roadway for all wheels connected to a given axle. Viewed another way, it is the fraction of total vehicle weight resting on a given axle...	>- |Adhesive weight Adhesive weight Adhesive weight is the amount of a locomotive's weight that is applied to the driving wheels and so capable of delivering traction. The more weight applied to the driving wheels, the greater the locomotive's ability to haul a load. But if the weight on the driving wheels exceeds the axle load of...	>- |Service weight	866 kN

Locomotive No. 44 of the Brunswick State Railway (BLE) was a tank locomotive

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 pulling it behind it in a tender. It will most likely also have some kind of bunker to hold the fuel. There are several different types of tank locomotive dependent upon...

 for mixed passenger and goods traffic. The locomotive, built in 1934 by Krupp

Krupp

The Krupp family , a prominent 400-year-old German dynasty from Essen, have become famous for their steel production and for their manufacture of ammunition and armaments. The family business, known as Friedrich Krupp AG Hoesch-Krupp, was the largest company in Europe at the beginning of the 20th...

, had a 2-8-2

2-8-2

Under the Whyte notation for the classification of steam locomotives, 2-8-2 represents the wheel arrangement of two leading wheels on one axle , eight powered and coupled driving wheels on four axles, and two trailing wheels on one axle...

T wheel arrangement and a two-cylinder superheated engine. Leading

Leading wheel

The leading wheel or leading axle of a steam locomotive is an unpowered wheel or axle located in front of the driving wheels. The axle or axles of the leading wheels are normally located in a truck...

 and trailing wheels were housed in a Bissel bogie

Bissel bogie

A Bissel truck is a very simple and commonly used way of designing a carrying axle on a steam locomotive to enable it to negotiate curves more easily. The design uses a single-axled bogie, usually known as a pony truck, whose pivot is towards the centre of the locomotive...

. Rather unusual for such a locomotive were the smoke deflectors

Smoke deflectors

Smoke deflectors are vertical plates attached to the front of a steam locomotive on each side of the smokebox. They are designed to lift smoke away from the locomotive at speed so that the driver has better visibility unimpaired by drifting smoke....

 which were attached directly to the side tanks and extended as far as the front buffer

Buffer (rail transport)

A buffer is a part of the buffers-and-chain coupling system used on the railway systems of many countries, among them most of those in Europe, for attaching railway vehicles to one another....

 beam.

After the takeover of the BLE by the Deutsche Reichsbahn

Deutsche Reichsbahn

Deutsche Reichsbahn was the name of the following two companies:* Deutsche Reichsbahn, the German Imperial Railways during the Weimar Republic, the Third Reich and the immediate aftermath...

 in 1938, the engine was given the running number 79 001, re-using a number previously given to a Saxon XV HTV that had been retired in 1933.

The engine survived the Second World War and was sold to the Brunswick

Braunschweig

Braunschweig , is a city of 247,400 people, located in the federal-state of Lower Saxony, Germany. It is located north of the Harz mountains at the farthest navigable point of the Oker river, which connects to the North Sea via the rivers Aller and Weser....

-Schöning railway in 1947. Later it was transferred to the Frankfurt

Frankfurt

Frankfurt am Main , commonly known simply as Frankfurt, is the largest city in the German state of Hesse and the fifth-largest city in Germany, with a 2010 population of 688,249. The urban area had an estimated population of 2,300,000 in 2010...

-Königstein

Königstein

The term Königstein can refer to several places in Germany and Namibia:Germany:* Königstein im Taunus, town in Hesse* Königstein, Saxony** Festung Königstein, castle near Königstein in Saxony* Königstein, Bavaria...

 railway, the Teutoburger Wald railway and then returned to the Frankfurt-Königstein railway. It was retired there in 1973.

The running number 79 001 was allocated in 1951 to the former French locomotive, 242 TA - 602, which had ended up in German hands after the war.

Literature

• Weisbrod, Bäzold, Obermayer: Das große Typenbuch deutscher Dampflokomotiven. Transpress Verlag ISBN 3-344-70751-5

External links

• There is a relevant English-language forum at Railways of Germany