​Barry held a key role in our primary production facility on Hong Kong Island for the past fifteen years. Our extensive and versatile product line allows us to produce sails to suit your requirements and expectations. The golden rule of thumb: Use enough vang to keep the top batten parallel to the boom. During pre-start and at the weather mark you should have a set vang tension to apply. Proper use of a boom vang helps keep the sail full and drawing well. If the vang was left slack the boom would be able to rise and the mainsail would twist at the top – bringing the tell tail to life – without losing power from the lower sections of the mainsail, and without dropping the boom to leeward and closing the slot. The Boom Vang, in its simplest form, is a block and tackle arranged in such a fashion that it applies downward force (also upward force, see rigid vang) to the boom.This will allow the sailor to control the tension of the leech at all points of sail, regardless of the boom… On an upwind leg, especially if you’re overpowered, tighten the vang to depower the main by flattening the sail. In very heavy airs where your traveller is completely to leeward and you are still easing mainsheet to keep the boat upright. 2) Lines in systems, often taking the total load (so without gear). The sheet then controls the lateral position of the boom, which is quicker and easier than using the traveler. The opposite happens, the mainsail depowers completely, the little green arrow disappears, and the spinnaker happily drags the boat to windward, jibes the boat and someone, usually the bowman, ends up with wet feet.Set your vang tension using the top batten angle to the boom as a guide, and do not blow the vang to solve a death roll downwind. Cruisers use the vang to keep the boom from rising when sailing downwind and abraiding the main. In this situation, the mainsail will begin to completely flap and flog when the mainsheet is eased. The Selden hydraulic boom vang is intended for use on a sailing boat as an aid to control the boom vertically. The control line is typically led back to the cockpit, where pulling the line exerts force to pull the boom down. Although much has changed; some constants remain. The Parts of the Boat, How to Rig Your Small Sailboat and Prepare to Sail, When to Adjust Sailboat Sails for Stronger Winds. For those of us who grew up sailing from a young age, we’ve had it from Optimists to Lasers, to keelboats and beyond. Constantly check that your twist is correct using your tell tales, adjust your vang tension to a good ‘middle ground’ setting until some breeze fills and the sail becomes more stable. The Afloat daily newsletter highlights the best of our editors' picks, as well as the latest content from other popular sections of our website. We are all familiar with the panicked “BLOW THE VANG!” call, often it comes far too late. On the downwind side of life, before you bear away, ease the … T here was a time when, possibly as a legacy of dinghy sailing and some youthful offshore racing, I would strap Sally’s long, heavy wooden boom down and attempt to get it as close to parallel with her waterline as I could, without ripping the toerail from its fastenings. The easiest way to tell the difference between the boom vang and the mainsheet is location. ​As sailmakers, we do not just design sails for boats. The vang boom fitting is measured from the innermost edge of the fitting to the aft extremity of the mast when boom is fixed onto the mast gooseneck. A boom downhaul works like a Cunningham by tightening the luff of the mainsail to flatten it and to move the belly of the mainsail toward the mast, which improves its aerodynamics and reduces heel. A boom vang is a tackle system attached at a 45° angle between the mast and the boom. The sail stays flat with increasing winds. The boom vang needs to be easy to manually handle. Learn how to use the boom vang in this free video on sailing tips and instruction. The slot remains open and free as the boom rises rather than being left to leeward, and the helm unloads allowing the boat to accelerate. Happy Christmas from UK Sailmakers Ireland, IRC Optimising: Fathead Mainsails Are a New Trend Say UK Sailmakers Ireland, Record Fastnet Race Challenge Taken Up By Ten Irish Boats, Buoyant 30 Entries So Far for June's Sovereign's Cup, American Magic Capsize Alters Prada Cup Sailing Schedule, National Yacht Club's Volvo Dun Laoghaire-Dingle Race 2021 Should Get Us Going Again. So you can see why we need to ask for your help. The solution to this problem is to equalize the forces of the spinnaker and mainsail. After dropping the mainsail, raise the boom to give more headroom in the cockpit. When the boat is hit by a gust the mainsheet is eased to depower the sail and unload the helm but, as above, the vang holds the boom down, not allowing the sail to twist, so more mainsheet is eased and the mainsail begins to backwind due to closing the slot. A rigid vang comes into play in the light air when there is not enough wind pressure on the sails to hold the boom up. A number of commercial rigid boom vangs are also available. It can be easily removed when the wind is light. Tom Lochhaas is an experienced sailor who has developed several boating safety books with the American Red Cross and the U.S. Coast Guard Auxiliary. In order to find the best solution for your boat you need to start from a baseline – I hope this is what we have provided in this article. When the boat falls into a lull and the mainsail begins to stall more twist is needed – the main sheet is eased, but nothing happens, so the mainsheet is eased more and more until the tell tail eventually flies – but now the entire mainsail has been left to leeward, the slot has shut, and the boat feels lifeless. The boom sits too low to avoid head injury on the vang. When the boat begins to flatten after the puff pull the vang back on slowly, continuously feeling how the boat is reacting. This motion makes the sail less efficient. Your mainsail vang is used to control the vertical movement of your boom. Ultimately it can have a major effect on the performance of your boat. The rigid portion of the vang produces continuous upward / positive pressure on the boom to take out any negative effects weight might have on sail shape. If left uncontrolled this roll eventually leads to an unintentional jibe and broach (see photo below). As a result your vang directly limits the amount of twist in your mainsail. The golden rule of thumb: Use enough vang to keep the top batten parallel to the boom. A common and fatal mistake when running downwind in heavy airs is blowing the vang when the boat begins to roll downwind. For use on boats up to 29' LOA. With a slack vang, the boom is allowed to rise when the mainsheet is eased. When sailing downwind on a broad reach or a run, tighten the vang to keep the boom down and minimize mainsail twist that spills air from the sail. This lifting motion can sometimes create inefficiencies because it causes the sail to luff and lose wind. I don’t know how many times I’ve heard – “take the slack out of the vang” – while sailing upwind. It needs to be connected to a hydraulic system that has a pump station and a holding tank. A vang works with the sheet to apply the downward force on the boom at all horizontal angles, allowing the sheet to be used to control the horizontal angle of the boom effectively. This is certainly not an exhaustive breakdown of how to use the vang. By using LiveAbout, you accept our, Learn the Parts of a Sailboat and How to Communicate Them, Learn How to Sail a Small Sailboat – 1. Your mainsail vang (or kicker) is the sail control all of us know. ​As a core loft within the UK Sailmakers Group, we are uniquely placed to draw from a worldwide pool of knowledge and experience - these ties have been recently strengthened with the return of Barry Hayes and Claire Morgan from Hong Kong. Let the puff roll through. If it is too tight, the top telltale will stall. Some boats such as SB20s and other sports boats rely heavily on the vang for mast bend. Different amounts of twist are needed depending on the prevailing wind conditions. When the mainsail is raised on a sloop, the sail itself holds up the boom. Jul 11, 2019 - Proper use of a boom vang helps keep the sail full and drawing well. Support for the boom: A vang can make a great support to hold the boom up when you lower the sail, so you don’t need to attach a topping lift line or wire to the boom’s aft end. Have your mainsail tell tail breaking 50% of the time. Unlike many news sites, we haven’t put up a paywall because we want to keep our marine journalism open. Its purpose is to pull the aft end of the boom down when the mainsail is fuller and more twisted than desired. Afloat.ie is Ireland's only full–time marine journalism team and it takes time, money and hard work to produce our content. Pull your vang on to keep your top batten parallel to the boom. If you're not happy about that please hit your back button. Your mainsail vang is used to control the vertical movement of your boom. By using a tight vang (i.e. Graham Curran is a sailmaker and director of UK Sails Ireland. You can help us through a small donation. Provides a 5-1 purchase. LiveAbout uses cookies to provide you with a great user experience. A boom vang can be as simple as a short length of good quality braided dacron or a an elaborate setup costing hundreds. But do you know when to use it, and as importantly, when not to? The boom vang typically begins close to the base of the mast and connects to the base of the boom at about a 45-degree angle. A boom vang is used on a sailboat to pull down the boom on off-wind points of sail when the wind in the mainsail would lift the boom. Doing so instantly limits the amount of twist in the sail to whatever is there at that precise moment. A good indicator of good vang tension is if the top batten as close to parallel with the boom as possible, usually ending up at 25° off parallel. When sailing downwind in light air, the mainsail generally has a better shape if the vang is not tight. It's about not letting the weight of the boom pull out any sail shape. When in this situation ensure your outhaul and Cunningham are pulled on hard, and your backstay is at maximum tensions to flatten the mainsail as much as possible without inverting it. Jan 26, 2018 - Proper use of a boom vang helps keep the sail full and drawing well. The same great sail and customer service we have provided in the past will continue, as does our commitment and passion for growing the sport of sailing all over the country. When your mainsail is hoisted and filling it will naturally try to lift your boom – the vang holds the boom down. Today, I opened the Catalina Direct Boom Vang Kit to begin installing -- but what a surprise (!) 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