The Stanier Black Five 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 versatility and reliability, it was used for both passenger and freight services across the UK. The locomotive features a 4-6-0 wheel arrangement, which provides a good balance of power and stability. Over 800 units were built, making the Black Five one of the most successful steam locomotives in British history. Its robust design allowed it to handle a variety of routes and conditions, contributing to its lasting legacy in the world of rail transport.