• Dec 25, 2025 gresley and his locomotives l n e r design histor Gresley A3 : An evolution of the A1, introduced in 1928, with improved boiler capacity and performance. Notably, the Flying Scotsman, perhaps the most famous steam locomotive worldwide, was an A3 class. Gresley B17 Class This 4-6-0 freight locomotive was designed for mixed By Eileen Dicki
