Hi David, By "It" I mean the boom vang if that was not clear. Pulling the vang closes the leach / takes twist out / flattens the sail.
The last inch / tip on the leach. If the tip is pointing to leeward than the vang is too loose and your spilling wind through the upper triangle of your sail. You need to tightent it a few inches. BTW that can be useful when the wind picks-up / your backstay is full on and you still have too much heel but don't want to reduce sail yet. For example: On a gusty day. Conversely if the tip is pointing to windward (More than just a little like a few degrees) then there's too much "Curl" and that's detrimental to the airfoil shape. Have fun, Francois Rivard 1990 34+ "Take Five" Lake Lanier, GA Message: 9 Date: Tue, 11 Aug 2015 16:23:58 -0400 From: David Knecht <davidakne...@gmail.com> To: CnC CnC discussion list <CnC-List@cnc-list.com> Subject: Stus-List Trimming the main Message-ID: <6a06efbc-7ad5-4fd4-b1af-83637a3f7...@gmail.com> Content-Type: text/plain; charset="us-ascii" I have read in several places that one guideline for mainsail trim is to make the upper batten parallel with the boom. My upper batten is full length with adjustable tension, so it is curved. In this situation, what part of the batten would theoretically want to be parallel with the boom? Thanks- Dave Aries 1990 C&C 34+ New London, CT Regards
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