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Sail Trim
"CaveLamb" wrote in message
... Copy all that, Wilbur. I have a boltrope with a slug at each end of the foot. The one I think I may need to add would be at the foot of the luff. (I think you had the picture of it right from what you said) The tack/luff pulls aft below the bottom luff slug, which is a bit over a foot up from the tack corner. The tack fitting is an inverted U thing that pins through the gooseneck laterally. It can swing fore/aft. So any pressure on the sail, or tension on the outhaul, pulls the bottom tack corner of the sail aft of vertical (of the rest of the luff). That seems to be the source of the odd wrinkle at the aft end of the shelf. I tied a line through the tack ring, around the mast, and pulled the foot forward an inch or two. That made the shelf look a lot better. Will take a closer look at it in the next few days and discuss it with the sail loft before messing with it though... My boom has a similar arrangement but with one caveat. The inverted-u tack ring on mine can be reversed. Doing so will effectively move the tack cringle fore or aft about half an inch. You might try that little trick. The reason for this arrangement with the tack connection moved somewhat aft on the boom gooseneck was due to the fact that the boom, when end-boom sheeting is employed, can be used as a roller reefing boom with the sail winding up around the boom. But, mine has mid-boom sheeting and a traveler above the companionway that precludes the wind-up function because of the mid-boom sheeting bales on the boom. But, the boom can rotate on the gooseneck and the gooseneck can also slide up and down in the sail track. I have the same situation as you do when lowering the sail. The boom sort of hangs on the lowest sail slug against the slug stop in the top of the gate with the boom about a foot lower pulling on what's left of the sail. So, since my gooseneck slides up and down in the track, I simply use the downhaul line as an uphaul to raise it up to the bottom of the gate. No more stretching of the sail and a more compact sail stack under the sail cover. The best thing about the sliding gooseneck is when hauling up the sail I use no downhaul so I just pull the sail up to the top black line on the mast. The gooseneck slides up to almost the bottom of the gate. Then after making fast the halyard I push down by hand on the boom at the gooseneck until the luff is properly tensioned according to prevailing winds and cleat off the downhaul line to keep it in place.. Simple as pie and no messing with winches to get the luff tight enough. Wilbur Hubbard |
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