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Does any company make 27 and 30 inch radius curves?
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Not to blast anyone, just to clarify... <br /> <br />I specifically did not mention superelevation. In the past I tried banking curves and it turned out EXACTLY like tpaulsen suggests. Long cuts "pull" the cars off of the track to the inside, trying to force the tail of the train to chase the head (even with minimal banking.) In Prototype trains, they do superelevate, but their Gforce loads are much higher in center of gravity than ours, and do press to the outside of the curve like a race car on a track. <br /> <br />Easements allow you to highball (go really fast,) on your mainline track with longer trains (with appropriately wide radius curves.) It also gives big cars and locos a chance to "get ready" for the curve. (And, it is very prototypicaly on mainlines to allow the gradual change from straight to curve, although in real life it its almost imperceptable without an arial photo.)
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