Walthers 130 Foot N Scale Turntable Review

N scale is a fixed ratio of 1:160. A 130 foot prototype turntable bridge is 1,560 inches at full size, and dividing that by 160 works out to a modeled bridge length of roughly 9.75 inches. That is a meaningful feature even in a scale built specifically to pack more railroad into a smaller room, and the pit, apron and any surrounding roundhouse structure add more footprint on top of that bridge length alone.

The manufacturer states the turntable is motorized and DCC controlled, allowing indexing to specific stalls from a throttle. At N scale's smaller physical size, the wiring for stall rail polarity is working with smaller, more closely spaced connections than the equivalent HO version, which the manufacturer's own assembly instructions address directly. Careful reading of those instructions before starting construction matters more here than on a larger scale turntable, simply because there is less room to correct a mistake after the fact.

The downside is proportional footprint, not raw size. N scale modelers often choose the scale specifically to fit more mainline running and more scenes into a small room, and a nearly 10 inch turntable plus its pit and lead tracks claims a large share of that smaller total footprint compared to how little of an HO layout the equivalent feature claims. A buyer should ask whether an engine terminal scene is actually part of the track plan's goals, not add a turntable simply because it is available in N scale.

The second real consideration is the same one at any scale: DCC rail polarity switching as the bridge indexes between stalls is a genuine wiring project, and it is worth planning into the layout's overall DCC wiring approach from the start, covered generally at how to wire a DCC layout.

For a layout that only needs to occasionally turn a locomotive rather than index between many roundhouse stalls, a wye track arrangement is a space saving alternative that uses track the layout may already have instead of a dedicated turntable, covered in full at turntable vs wye for turning locomotives. That comparison applies just as directly to N scale as to HO, since the tradeoff is about operating philosophy and footprint, not scale specific.

For a buyer building a smaller N scale layout who still wants a scenic engine terminal, planning the turntable size against the actual roster of locomotives that need turning, rather than the largest available model, is the more space efficient instead option, using Kato SX Controller Power Supply Transformer or a similarly modest power setup for the smaller footprint the rest of the layout implies.