GT 3 The Unrealised Dream The Story of Britain's Last Gas Turbine LocomotiveGT 3 The Unrealised Dream The Story of Britain's Last Gas Turbine Locomotive 30. 00 During the 1930s, with the end of steam locomotion being actively considered, many looked to develop engines powered by diesel and electricity. But for the coming of war in 1939, and the acute recession that followed, much more might have been accomplished. Nevertheless, the die had been cast and during the late 1940s and 1950s designers stepped up their efforts to