Motorized 130' Turntable -- Assembled - 10-3/8" 26.3cm Overall DiameterDetails: Sure to be the focal point of any N 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, turntables were placed adjoining the roundhouse, servicing tracks and at major terminals, backshops. This 130' turntable is large enough to turn larger locomotives such as a 4 8 4 Northerns, 2 10 2s all the way up