[quote=rodgers]In the 80's the Supercat 20 had the main halyard hook at the bottom. They used a wire halyard inside the luff track with a special strong fitting at the top that could handle downhaul pressure. The H16 mast head shoots the halyard out the front so the S20 system wouldn't work very well on a H16. According to Bill Roberts the forces remain the same with his system, so no difference in mast bend compared to a Tornado style lock system.
A halyard on the outside of the mast locked at the bottom would loose tension as the mast bent because it would then have a shorter distance to travel when the mast bends. Also it would have extra windage, and get in the way of the overlapping jib.[/quote]
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