Shay Locomotive

A Shay locomotive is a type of steam engine designed mainly for hauling heavy loads on logging and industrial railroads. Unlike typical locomotives with side-mounted wheels, it features a unique series of gears and a central drive system that powers three or more "truck" assemblies beneath the locomotive. This gear-driven system provides excellent traction and smooth power delivery on steep, uneven tracks often found in timber operations. Its robust design allows it to navigate difficult terrains while pulling heavy loads, making it ideal for industries requiring rugged, powerful locomotives.