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Crandell, <br /> <br />I believe he was referring to the seperation gained by one turn. Obviously one would want to make severals turns if one wants a decent climb. Mine goes around four times on the upper part to give me 20" between bottom and top decks. It starts at a 4" elevation entering the helix. Yes, it is tight reaching inside to get cars. All helixes of the 30" radius variety share this drawback. It is not too bad because you don't have to reach in very far. My track work is impeccable inside the helix to avoid having to reach in as much as possible (knocking wood).
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