Tuning your rig - left adding turns, right measuring the tension using a vernier guage. To check the adjustment of your rig start by sailing close-hauled with the boat nicely powered up at around 20 degrees of heel - ideally with full sail in flat water and around 10-14 knots of wind, depending on the vessel. TENSIONING THE MASTHEAD RIG. The top of the mast must be vertical in the yacht, so use the main halyard and measure carefully to a fixed point on each side of the yatch. Hand tighten the cap shrouds to centre the mast. The shrouds can now be tensioned by adjusting each turnbuckle in turn by approximately 3 turns at a time per side. assumed the old boat style with a swing keel and new mast section for this guide and will try to note variations were required. Tuning at the Dock Tools Required - 50 foot tape measure, Model A Loos tension gauge, and tools to adjust turnbuckles. Mast Side to Side - Using the main halyard run the 50 foot tape from the top of the mast. With the Placing the halyard lower on the gaff allows you to vang down harder and still have the gooseneck three inches above the deck. V. HALYARDPOSITION(INSET) Wind Halyard Pos. Gooseneck⁄Vang Tension Light air 10th Clip 3" Light Medium air 1-2" Down 4-5" Medium Heavy air 2-3" Down 5-8" Hard Jens Rig 10-12" Down 5-8" Hard Yacht Rigging Rig Tuning Tips. By Stephen Lloyd July 15, 2015 July 21st, Of course rig tuning is a very tricky subject to cover in a short blog post, but this should give you a good idea as to whether or not you need to have a pro come and look at your mast and rigging. Regardless, please make sure to have a rigging inspection performed at Measure the length of your spreaders from the side of the mast to the point where the shrouds touch the end of the spreaders. The spreaders should be as short as possible, 760 mm. Make sure the spreaders are swept back the same amount on each side: Tie a small string tightly between the shrouds just above the spreaders I.e the mast will go backwards to the first level of spreaders then stard bending forward from there to the masthead. This especially with loose D2s that do not prevent the section above from bending forward. We therefore started by loosening the V1s by two full turns, observing a reduction the bend. The overall rake was still excessive. Download Free Rig Tuning Guide RIG TUNING GUIDELINES - US Spars The aims of RIG TUNING are as follows: A. Ensure a straight mast athwartships. B. Control sail shape. C. Achieve proper helm balance in a variety of conditions. D. Spread loads appropriatley on spars, rigging and boat. Different rig configurations require a different The tuning guide on the class site is useless..for both the frac and masthead 29. That is an old factory tuning guide which none of the top boats use. The top MH east coast 29's use some form of the tuning guide set up by Dave Armitage, a Quantum sail designer. Mast Tuning Guide. Lido 14 . I have been asked by a number of Lido 14 sailors to help tune their masts. This is a guide that will be continually updated and eventually posted on a Lido 14 Fleet 59 web site that I have put together. Because the rig is sailed so loose the mast while sailing off the wind can actually flex forward and aft, in a Make sure the mast is not leaning over to one side or the other (Part 1). Set the rake. Move the base of the mast, if required, to stop the partners interfering (keel-stepped masts only). Tighten up the shrouds, and in the process