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

Perhaps one of the most celebrated diesel locomotive types in the United States, the ALCO PA was a sleek icon of 20th Century railroading! In this week's Featured Product Video, we're taking a look at the features, details, and sounds on Walther's Mainline series model! Shop now: http://bit.ly/3sZigM1 | M.B. Klein Inc. / modeltrainstuff.com