The term "2-8-2" refers to a type of steam locomotive wheel arrangement. In this configuration, the locomotive has two leading wheels, eight driving wheels, and two trailing wheels. This design is often used for freight trains, providing a good balance of power and stability. The 2-8-2 wheel arrangement is also known as the "Mikado" type, named after a popular operetta by Gilbert and Sullivan. Mikado locomotives were widely used in the early 20th century, especially in the United States and Japan, due to their efficiency in hauling heavy loads over long distances.