Diesel locomotive Diesel–hydraulic locomotives have a smaller market share than those with diesel electric transmission - the main worldwide user of main-line hydraulic transmissions was the Federal Republic of Germany, with designs including the 1950s DB class V 200, and the 1960 and 1970s DB Class V 160 family. British Rail introduced a number of diesel hydraulic designs during it 1955 Modernisation Plan, initially license built versions of German designs (see ). In Spain RENFE used high power to weight ratio twin engined German designs to haul high speed trains from the 1960s to 1990s. (see RENFE Classes 340, 350, 352, 353,
TU2 diesel locomotive TU2 diesel locomotive TU2 (ТУ2) is a Soviet narrow gauge diesel locomotive for the track gauge of The decision to replace steam locomotives by diesel ones on the narrow gauge railways was taken after the Second World War. The first diesel locomotive built for the narrow gauge railways was the TU1, built in 1954; only two locomotives of this type were built. The TU2 was an improved redesign of the TU1. The first TU2 was built in 1955. The first TU2 was tested on the test site of the Central Scientific Institute (in Shatura), that belonged to the Ministry of