T21, originally T2 is a diesel-hydraulic

locomotive A locomotive or engine is a rail transport vehicle that provides the Power (physics), motive power for a train. If a locomotive is capable of carrying a payload, it is usually rather referred to as a multiple unit, Motor coach (rail), motor ...

operated by Swedish State Railways ( sv, Statens Järnvägar, SJ) and Nora Bergslags Järnväg (NBJ) of Sweden. 60 units were built during the 1950s by Maschinenbau Kiel and

Svenska Järnvägsverkstäderna Swedish or ' may refer to: Anything from or related to Sweden, a country in Northern Europe. Or, specifically: * Swedish language, a North Germanic language spoken primarily in Sweden and Finland ** Swedish alphabet, the official alphabet used ...

based on the German DB Class V65. The T21 was technically identical with the MaK 800D. The T21 was used to replace

steam locomotive 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 ...

s on branch lines. They were used until the 1990s. The order consisted of 56 locomotives, of which ten were to be built in Sweden with a Swedish hydraulic shift, designated T3, later T22. The shift did not work particularly well, and only four were delivered, the rest with a German shift. Later two units were rebuilt to T21s. NBJ bought four T21 units in 1963.

External links

Järnväg.net on T21
MaK locomotives T21 D locomotives Standard gauge locomotives of Sweden Railway locomotives introduced in 1955 {{diesel-loco-stub