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Hi you All, I have a question about "wye" turnouts and tight radii. My reference is John Armstrong's "Track Planning..." book. I'm planning a little branch line for 1920's short equipment only running at slow speeds; I'm diligently laying out a wye turnaround using proper substitution radii etc. and am generally keeping to a minimum curvature of 18" radius...space is at a premium. The RCR of a #2 wye is listed as 15", and John cautions against using turnouts w/ an RCR of any less than the minimum radius which intended equipment can handle. I note, e.g., that the minimum radius for a Bowser 442 Atlantic is 18", and even for a 040 Dockside, 18" min is recommended though the specs say 15" r. is doable. Because space is very tight, I want to use the #2 wye turnouts for my wye turnaround, and since the RCR of the #2 wye is 15", it seems reasonable to just maintain that 15" radius between the turnouts. My question is: In practice, can #2 wyes be used w/ equipment rated for 18" min. radius curves?..and, can I get away with continuing the 15" radius between them? If not, how can #2 wye's ever be used? Humbly, Fred
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