Under the

Whyte notation Whyte notation is a classification method for steam locomotives, and some internal combustion locomotives and electric locomotives, by wheel arrangement. It was devised by Frederick Methvan Whyte, and came into use in the early twentieth cen ...

for the classification of steam locomotives, 2-12-2 represents the

wheel arrangement In rail transport, a wheel arrangement or wheel configuration is a system of classifying the way in which wheels are distributed under a locomotive. Several notations exist to describe the wheel assemblies of a locomotive by type, position, and c ...

of two

leading wheel The leading wheel or leading axle or pilot wheel 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 on a leading truck. Leading wheels are used ...

s on one axle (usually in a

leading truck The leading wheel or leading axle or pilot wheel 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 on a leading truck. Leading wheels are used ...

), twelve powered and coupled driving wheels on six axles, and two

trailing wheel On a steam locomotive, a trailing wheel or trailing axle is generally an unpowered wheel or axle ( wheelset) located behind the driving wheels. The axle of the trailing wheels is usually located in a trailing truck. On some large locomotives, ...

s on one axle (usually in a

trailing truck On a steam locomotive, a trailing wheel or trailing axle is generally an unpowered wheel or axle ( wheelset) located behind the driving wheels. The axle of the trailing wheels is usually located in a trailing truck. On some large locomotives, ...

Equivalent classifications

Other equivalent classifications are: *

UIC classification The UIC classification of locomotive axle arrangements, sometimes known as the German classification''The Railway Data File''. Leicester: Silverdale, 2000. p. 52. . or German system,Kalla-Bishop P.M. & Greggio, Luciano, ''Steam Locomotives'', Cre ...

: 1F1 (refined to 1'F1') (also known as German classification and

Italian classification The UIC classification of locomotive axle arrangements, sometimes known as the German classification''The Railway Data File''. Leicester: Silverdale, 2000. p. 52. . or German system,Kalla-Bishop P.M. & Greggio, Luciano, ''Steam Locomotives'', Cre ...

) *

French classification Under the French classification system for locomotive wheel arrangements, the system is slightly different for steam and electric/diesel vehicles. Steam The French system counts axles, rather than wheels. As with Whyte notation, a conventional r ...

: 161 *

Turkish classification In the Turkish classification system for railway locomotives, the number of powered axles are followed by the total number of axles. It is identical to the Swiss system except that the latter places a slash between the two numbers. Thus 0-6-0 beco ...

: 68 *

Swiss classification For more than a century, the Swiss locomotive, multiple unit, motor coach and railcar classification system, in either its original or updated forms, has been used to name and classify the rolling stock operated on the railways of Switzerland. ...

: 6/8

Use

Austria

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 ...

and later the

Austrian Federal Railways Austrian may refer to: * Austrians, someone from Austria or of Austrian descent ** Someone who is considered an Austrian citizen, see Austrian nationality law * Austrian German dialect * Something associated with the country Austria, for example: ...

operated two Class 97.4 2-12-2T tank locomotives, both built in 1941.

Indonesia

An Indonesian F10 locomotive

Hanomag Hanomag (Hannoversche Maschinenbau AG, ) was a German producer of steam locomotives, tractors, trucks and military vehicles in Hanover. Hanomag first achieved international fame by delivering numerous steam locomotives to Finland, Romania and ...

and

Werkspoor Werkspoor N.V. was the shortened, and later the official name of the Nederlandsche Fabriek van Werktuigen en Spoorwegmaterieel. It was a Dutch machine factory, known for rolling stock, (ship) steam engines, and diesel engines. It was a successor ...

built a cumulative total of 28 JSS 800, came in 1912-1920. The JSS 800s (2-12-2Ts or 1F1 in UIC notation) also known as ''Javanic'' had been used by the

Staatsspoorwegen ''Staatsspoorwegen'' (Dutch for State Railways, full name: ''Dienst der Staatsspoor- en Tramwegen in Nederlandsch–Indië'' (State Railways and Tramways Service in the Netherlands Indies, ''SS en T''), commonly abbreviated as SS) was a railway co ...

in freight service in

Java Java (; id, Jawa, ; jv, ꦗꦮ; su, ) is one of the Greater Sunda Islands in Indonesia. It is bordered by the Indian Ocean to the south and the Java Sea to the north. With a population of 151.6 million people, Java is the world's mos ...

and Sumatra, Dutch East Indies, now Indonesia. They were assigned the railroad numbers 801-823 and H130-134. After

Indonesian Independence The Proclamation of Indonesian Independence ( id, Proklamasi Kemerdekaan Indonesia, or simply ''Proklamasi'') was read at 10:00 on Friday, 17 August 1945 in Jakarta. The declaration marked the start of the diplomatic and armed resistance of th ...

, they were renumbered as F1001-F1026 by Indonesian State Railways.

References

12,2-12-2 {{Steam-loco-stub