Looking for info on commercially available, automated turntables...

[u18b]

Excellent point:  steam or diesel.

For reference, the Fleischmann turntable is 205 mm which is roughly 8 inches.

[jdcolombo]

Excellent point:  steam or diesel.

For reference, the Fleischmann turntable is 205 mm which is roughly 8 inches.

The bridge is 183mm, or 7.2 inches, which is 96 scale feet.  See https://www.reynaulds.com/products/Fleischmann/9152.aspx

That's not big enough to turn late-era steam.

It's also limited to 7.5-degree exit tracks, so you'd have to work your roundhouse geometry around this.  I actually had a Fleischmann turntable once upon a time.  It worked great, but the bridge wasn't long enough for a Berkshire and the 7.5-degree limitation was annoying.

John C.