⚡🚆 Britain’s First Mainline Diesel – LMS 10000 In 1947, the London, Midland and Scottish Railway (LMS) unveiled something revolutionary – LMS 10000, the first mainline diesel-electric locomotive built in Britain. Sleek, modern, and unlike anything that had come before, it marked the beginning of the end for steam. 🎥 In this video, we explore the story of LMS 10000 – its groundbreaking design, working life alongside its twin 10001, and the huge influence it had on the future of British Rail’s d