Sure to be the focal point of any HO Scale engine terminal, this Walthers Cornerstone 130' Motorized Turntable is where steam locomotives, and later diesels, were turned around at the end of their runs. Normally serving a roundhouse, most were also placed for access to backshop facilities and servicing tracks. This 130' turntable was about as big as they come - large enough to turn a 4-8-8-4 Big Boy and other large, modern engines.