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A 29er only sleeves the mast down low in the bottom 2' (or so) of the main along with part of the boom and the vang strut. the rest of it is a traditional luff groove hoist with an internal halyard arrangement.


I designed a 60lb lead bulb and built the aluminum keel fin for one that a friend owns. I can also tell you that the rigging loads, relative to even a 16' cat (don't know of a 15' cat to compare it to), are tiny on the skiff - it's got a 2:1 mainsheet! (and it's plenty of purchase)

This is not the boat with the bulb keel but shows the mainsail / luff groove arrangement.

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