First Steam Locomotive to Exceed 100 mph

By the early 20th century, railroads were pushing the boundaries of speed and efficiency to meet growing demands for faster passenger travel across Europe. On April 6, 1908, the Great Western Railway's 4-4-0 locomotive, 'City of Truro,' piloted by driver William Speeds, reached an astonishing 102.3 mph during a test run between Plymouth and Bristol in England. This feat was made possible through innovations in boiler pressure, wheel balancing, and aerodynamic shaping, overseen by chief mechanical engineer George Jackson Churchward. The event highlighted the competitive spirit of rail companies vying for prestige and efficiency records, building on earlier experiments like those of the London and North Western Railway. For model railroad enthusiasts, 'City of Truro' is iconic for its elegant design and role in proving that steam power could rival emerging electric and diesel technologies. Its lasting impact included influencing safety regulations, spurring international speed competitions, and paving the way for modern high-speed rail, though it also raised concerns about track maintenance and passenger safety in the pre-braking era.