The BR Standard Class 5 is a type of steam locomotive designed by the British Railways in the 1950s. It was part of a standardization effort to create efficient and reliable engines for various types of service. The Class 5 locomotives are known for their versatility, capable of hauling both passenger and freight trains. These locomotives feature a 4-6-0 wheel arrangement, which provides a good balance of power and stability. A total of 172 units were built, and they became popular for their performance on British railways. The design reflects the engineering principles of the time, emphasizing simplicity and ease of maintenance.