The Stanier Class 5 is a type of steam locomotive designed by Sir William Stanier for the London, Midland and Scottish Railway (LMS) in the 1930s. Known for its powerful performance, it was primarily used for both passenger and freight services. The locomotive features a 4-6-0 wheel arrangement, which provides a good balance of speed and traction. A total of 842 units were built, making it one of the most successful designs of its time. The Stanier Class 5 is often recognized for its reliability and efficiency, contributing significantly to the railway network during its operational years.