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,
Baldwin Locomotive Works emerged from bankruptcy in 1938 it underwent a drastic change in management. The new management revived their development efforts with diesel power but the company was already too far behind. In 1939 Baldwin offered its first standard line of diesel locomotives, all designed for yard service. By this time, GM-EMC was already ramping up production of diesel passenger locomotives and developing its first diesel road freight locomotive. As the 1930s drew to a close, Baldwin's coal-country customers such as Pennsylvania Railroad, Chesapeake and Ohio, and Norfolk and Western were more reluctant than other operators to embrace diesel technology, which could