The turntable requires a sunken installation for flush mount on a layout baseboard. It has 8 spoke tracks on the outer edge of the turntable pit. It can be expanded to 24 spoke tracks with the 8997 edge segments that can be snapped onto the turntable pit. The turntable has extensive detailing and prototypical paintwork. It is operated by remote control using a controller included with it. It has a 5-pole electric motor for a drive mechanism. There is automatic shutoff of power to all tracks not lined up and in contact with the turntable deck. A Z power pack is included for a finer feel in operating locomotives onto the turntable and from the turntable to the stall tracks, as well as in the entire railroad maintenance facility area. External turntable diameter 170 mm / 6-11/16". Deck length 132 mm / 5-3/16". The diameter of the opening required for installation on a baseboard is 145 mm / 5-11/16". The turntable can be used with the 8983 locomotive shed. This illustration shows how 2 of the 8983 locomotive sheds can be set up with the 8998 turntable.