This video demonstrates the engine sounds from 4 different classes of British Rail diesel locomotive. They may look visually (slightly) similar but they each have a characteristically different engine sound. The class 37 and class 40 have different types of engines, but both were built by the English Electric Company. The class 44 has a Sulzer engine, and the class 55 has a Napier Deltic engine. So there you go! | Adrian Watson

Class 47 locomotive arriving at Wirksworth station in Derbyshire. This is on the Ecclesbourne Valley heritage line. | Adrian Watson

The first class 47 locomotive to go into preservation and still going strong. D1842 was built in the 1960s. Seen here arriving into Wirksworth station in Derbyshire. The class 47 was a successful locomotive, being the most numerous class built by British Rail (512 built). Some were later converted into class 57 locomotives and continue working. | Adrian Watson

🚆 The Mighty Class 47 – Britain’s Workhorse of the Rails 🚆 Few locomotives have defined an era quite like the British Rail Class 47. Built between 1962 and 1968 by Brush Traction and BR Crewe Works, these powerful Type 4 diesels became the backbone of British Rail. With over 500 built, they could be seen hauling everything from prestigious express passenger services to heavy freight across the entire network. Known for their distinctive Sulzer engines and versatility, the Class 47s carried alm