The rig The rig – a combination of masts, booms, rigging and all types of equipment. The most important thing when setting up a rig is that the mast and sails fit each other. RIGGING & LAUNCHING A CAREEL 18 -2 - 30 Tension and cleat mainsheet to stop boom swinging 31 Unfurl Just enough of main sail so you can start it into mast sail track, attach main halyard to head of mainsail (captive pin shackles on halyards make life easier) 32 Attach vang to mast step, ready to attach other end to boom. Since most people do not have a tension measurement device, simply increase jib halyard tension while sailing to windward until the leeward shroud is no longer slack. Pico rigging manual 2007. CURRY: The mast raker line should only be used downwind to help keep the rigging from bang-ing around too. I like to get them so I can strum a low musical note on them. Tension of fractional rigging with in-line spreaders - proceed as in section 13. Remove the mast. RIGGING THE 6. One set will terminate just below the spreaders – the lowers. This creates a jib that is too full, a main that is too flat and a badly balanced boat. Aug 18, 2012 · 1) to keep the upper part of the mast column in alignment when the rig is up and all standing rigging is tensioned. 4 RUNNING RIGGING – DIMENSIONS Main halyard rope - minimum 4mm Headsail halyard rope - minimum 4. The mast raker line should ONLY be used downwind to help keep the rigging from banging around too much. Members CD and EF lie in the same plane, and CD is of length 7. Shroud tension is usually considerably less and the big advantage of being able to turn the mast's leading edge into the oncoming airflow will reduce windage. As tension increases, so does the load on the mast, rigging, and anchor points on the boat itself. All rigging wire used on yachts has a tendency to sûetchÐ On a you should periodically check the tension on the shrouds and stays, tightening them up if it is required. The next thing to consider, as a result of the round cut into the luff of Mainsails when the mainsail is sheeted out the tension on the luff increases this is detrimental to sail set, to overcome this a number of methods for automatically releasing luff tension using a Cunningham have been tried – a good source of information on these is via. The FX rig can carry more rig tension than the 49er, so over time we expect to see the tensions increase a little, especially in medium and heavy. The 2 sets of spreaders and the backstay whip are taped to the mast. Jul 17, 2006 · In c. The good news is that. She was built by Catalina Yachts (United States) and made of GRP (glass reinforced polyester). And he apparently tunes the masthead rig by ear: "Start with the lowers. The tension you will stop at is in that range of the working load of that diameter of wire. Over time most rig tension gauges change so keep this in mind and work out ways to calibrate you tension gauge. Using a Loos Tension Gauge, tighten the uppers (flat step-300 lb. Rigging Loads - or a tale of scientific progress? In which your hero tries to work out the starting point for the design of rigs. - Set up your rigging so that you can get a firm headstay when the breeze is on, it will make your boat go. OUTHAUL: A line used to haul the clew of a sail out to the end of the boom. Rig Data Sheet. ; angled step - 250 lb. Some more modern racing boats may have a mast jack, which is a really nice thing to have as you can leave the shrouds as they are and easily soften and tighten the rigging by jacking up the mast (or down). On our SO40 and our prior SO34, one could not easily determine the forestay tension. Australia's largest supplier of radio controlled model yacht fittings. In the Omega there are two shrouds (one on either side of the mast) and a forestay (or jibstay). STEP BY STEP GUIDE. RIG TENSION A lot of people set the rig tension the same for all conditions. The back of the mast at the gate has been cut away by 10mm to give 22mm of range in the gate. Here are my notes: Standing Rigging Tensioning. Insufficient tension can lead to shock loading resulting in damage to spars and rigging or even personal injury and optimum sail trim will be unobtainable. The Catalina 30 MkII, here in "tall rig" version, is a 29’11” monohull sailboat designed by Frank Butler. Now it’s finally time to go sailing and finish our tuning job. lengths the same. The standing rigging maintains the masts. Jul 14, 2006 · For rig adjustment John would set the shrouds just tight enough that I had to undo the jib from the deck to move the rig. straight mast. The shrouds and halyards will all be in position on the mast and will just require unwrapping. 3:5 Tie the jib sheets onto the eye on the clew of the jib. The amount of tension you put on the rig is determined by the mast step. It was historically made of the same materials as running rigging, only coated in tar for added strength and protection from the elements. €Also€check. There are also a couple of wooden frame pieces and a steel one that are used to support and attach the mast to the boat for transport. Essentially, any boat will benefit from having its mast(s) in the right position in the boat with the proper amount of tension applied to the shrouds and stays. If necessary, adjust the rigging screws for the cap shrouds without changing the cap shrouds tension (slacken one rigging screw by exactly the same amount as you tighten the other one). It is also reduces costs eliminating additional fittings required for discontinuous rigging. These gauges are designed for setting the proper tension in the standing rigging of sailboats and can measure the tension in cables and rods from 2. ” Finally, for those who still feel most comfortable “with the numbers” we offer the following charts for rig tension. Ease foot tension in 40mm from black band. Rigging Up: 1) Slide the mast through the luff sleeve. Wondering what rig tension should be, Old boat was way loose on leeward, and not too tight at rest New boat (AMI 320, Fractional rig, no back stay ) seems pretty stiff, not flexible like the endeavourcat. Adjust the rake of the mast to give a comfortably light weather helm. With “Hints and advice”, we aim to share with you our practical experience. Note: - The rigging with in-line spreaders is adjusted as with top rigging, the only difference being the. Background. Take one end of the halyard and pass it through the halyard cleat on the port side of the. There are 4 different sizes depending on the wire diameter. It is obvious that the rig is a large and vital part of your yacht. RAISING THE MAST : Making sure that all the various standing and running rigging is clear of winches and other snags, pull the tackle line to raise the mast. (figure 6). These suggestions are designed to give you an idea of how to shape and tension your rig. On our SO40 and our prior SO34, one could not easily determine the forestay tension. I The mast height above deck. • Lift the mast to a vertical position on the ground and then lift the mast and place the foot securely in the mast step. Mast Tuning - Tension the forward lowers so that the mast remains straight in column side ways and both forward lowers read 15 on the Loos gauge. Instead sail with a looser vang in heavy winds. Mast bend will also affect the shape and trim of the jib, since mast adjustment generally affects forestay tension. Most sloop-rigged yachts will carry two sets of shrouds. The screws are supplied in. Jul 12, 2002 · This is a Proctor mast and boom using a pin style gooseneck. MAST STEP: A metal fitting that holds the base of the mast in position. The lack of stretch allows for less tension in the rig to support the mast, as well as a more reliable set of the rig under varying pressure and loads. Has anyone tuned their rigging and if so, would you please tell me the proper tensions for the aft lowers, forward lowers, intermediates, uppers and split backstay. If the tension is too high then the mast will not rotate easily. One way to tell is to hook the main halyard at the gooseneck, and tighten it relatively firmly. Attaching Headstay and Backstay 7. , will result in a vertical mast compression of 750 x Cos 15° or about 720lbs. It's very dependent on the boat design, the conditions you sail in, what you plan to do with. Note: this guide depicts rigging for a Day Sailer I, though there should be many similarities with other Day Sailers by Phill Root, 1997 National Champion, G. Simple four hole base plates for easy installation. The rig is designed so that the sail stays rigged on the mast all the time and loose parts are minimized. As the rigging is tightened, the IHH500 reads the LCM525's output and displays it. If the mast is properly centered and raked all you have to worry about is making sure you have the appropriate tension on the shrouds. This patented design is highlighted by its self-elevating floor and ground level assembled mast. For the Fractional Rig, tighten the rig form the bottom up. E The end of the boom to the mast. This is the basic set up for beginning Opti sailors, clubs, community. In use, down haul tension for the mast is applied to hold the swivel connection downwards in position. Set the prebend—Part 3. Without pre-bend, the SailsEtc 11. For complete Mast Assemblies, contact us with details. The wooden mast support post must be checked to see if it has crushed into the underside of the deckbeam. Head Stay and Back Stay I would go up the mast and pin the shroud or stay in place and with light tension John would mark the wire as it lines up with the top of the thimble. Most of the current owners have concluded that rig tension is not the most important factor in boatspeed - the aluminum mast is so stiff that tweaking does not seem to pay much of a return. Essentially, any boat will benefit from having its mast(s) in the right position in the boat with the proper amount of tension applied to the shrouds and stays. ” Finally, for those who still feel most comfortable “with the numbers” we offer the following charts for rig tension. Jan 06, 2016 · I've owned and sailed a myriad of both fractional and masthead rigs (Merit 25, 470, Flying Scot, S2 9. the hole you see near it is where the running end of the downhaul runs into the cabin where i belay it against the mast. The most common problem in this respect is with the moulded mast plinth, which usually has a wooden core. TWS 0 to 6 Chock behind mast. FWIW, I don't think forestay tension makes any difference, whatever. The shrouds come into tension when the mast ( without the sail up ) is 5mm from the front of the gate. The mast is the critical factor to achieve performance: a. So he gets the shrouds set to have the mast straight, then put it in the right position for the wind speed, then add tension by unscrewing the mast jack. There is a quite a lot of difference between the boats in rake, spreader settings and chain-plate position, so the amount of mast bend differs considerably. Jun 09, 2005 · As you already know, the mast is held aloft by three pieces of standing rigging, i. The total tension range is 3” with the tension gradually increasing as the wind builds. Take up even turns on the lowers until the mast begins to invert. This rake will improve upwind performance and allow the rig to set in the correct position when the sails are set. We sell base extensions from: Chinook, Streamlined, Aeron, and Epic. MAST STEP: A metal fitting that holds the base of the mast in position. Boat Parts and Accessories Store Find Replacement Boat Parts, Electronics, Navigation, Engines, Fishing Supplies, and more. These boats are now 35+ years old or more and although the standing rigging and spars are of a fairly robust design, there is always the risk of loosing a mast as a result of failure of one component or another. Laser SB3 Mast Rigging Top Tips Kit you need: Knife Tape measure Permanent marker Screwdrivers flat and Phillips various sizes Star driver set Duralac 2m x 5mm elastic 1 x stainless steel ring (15mm approx diameter) 1 x reel amalgamating tape 1 x reel el ectricians tape 1 x loctite Vaseline. The deck-stepped mast, however, does not obstruct the accommodation spaces, and there is no big hole in the deck through which water can leak (a common problem). The gauge you mentioned is probably a Loos gauge. The fractional rig is very popular amongst racing sailboats. Tackles with hearts or blocks for stays. Rig Tension - measured at about shoulder height on the shrouds using a SuperSpars rig tension gauge. In engineering jargon, free-standing masts are called cantilevers. HOTLINE: Since the early days of racing Hobie 14s, racers have installed a mast raker line from the forestay adjuster to a cleat on the front crossbar. By adjusting the headstay and backstay, you will be able to bend the mast to achieve weather helm. For more about tuning and tension gauges, see Product Review: Loos Tension Gauge. Adjusting the tension is done by use of a turnbuckle. Having attached the snapshackle to the wire loop, the rig can now be tensioned according to the prevailing sailing conditions. Most modern sailing vessels use wire rope for the standing rigging. This stuff is way easier and lighter than using steel cable and probably no more expensive either. On the following pages detailed instructions will follow. All surveys include a trip to the mast head, a service that sets us apart from many surveyors. Pretension almost doubles mast. That way if you stuff up you can at least return to this setting. Adjustable Spreaders. I was very concerned with that amount of tension on a scary-thin mast crane. At the time, they could not build masthead sloop rigs because of the lack of rigidity of the spars. mast rake medium wind attach a tape (7. The mast is the critical factor to achieve performance: a. In use, down haul tension for the mast is applied to hold the swivel connection downwards in position. Standing rigging is almost always between a mast and the deck, using tension to hold the mast firmly in place. Illustrated Sail & Rig Tuning: Sail trim and rig tuning made easy! Both for experts and novices. In moderate air you should reduce mast rake if you are going block to block and the main is not. The truck- or trailer-mounted rig is stabilized and leveled by manual or hydraulic jacks. This ensures maximum rig tension fore and aft. The rig The rig - a combination of masts, booms, rigging and all types of equipment. What is standing rigging? The standing rigging of any sailing yacht refers to the wires that support and hold the mast in place. Carbonworks was approached by one of its clients to design and supervise the construction of carbon fibre yacht mast, turret and boom components for a fast-cruising 49 foot (15 metre) catamaran being built on the Gold Coast in Australia. Since the entire luff of the sail is connected to the mast, you have a great influence over mainsail shape by changing mast bend (using backstay, vang, rig tension, mast blocks, butt position, etc. I first used 1" EMT conduit (thin-wall). Due to relative movement between riser system and rig, it is necessary to keep the riser in tension and at the same time offer a work window for personnel. The tension on the halyard will keep it straight enough to sight the mast & look for bend. Beware, of jibing in high winds with a sail track, I have seen them bend and come off the mast. Shroud tension is usually considerably less and the big advantage of being able to turn the mast's leading edge into the oncoming airflow will reduce windage. Here is some advice about how much to tension the tack line. ITA membership runs from January to December and only costs 35 EURO per year. When you ease the halyard in strong winds, the mast rake increases and the upper leach feathers more effectively. One way to tell is to hook the main halyard at the gooseneck, and tighten it relatively firmly. A mast aft rig, alternately referred to as aft-mast rig, is a sailboat sail-plan that uses a single mast set in the aft half of the hull. It specifically stands for the rigging parts that are placed under tension to keep the various spars, mast, and bowsprit, securely in position to make the sail handle wind loads. Too much vang tension without the tighter rig and mast blocks (see section on following pages) will lead to excessive headstay sag and overbending of the mast. Mar 15, 2006 · The difference is that in the stuff luff system, rig tension is handled by the forestay, which is fixed at the mast, and tensioned at the bottom. The rig is designed so that the sail stays rigged on the mast all the time and loose parts are minimized. You probably. The information will allow whomever is reestablishing the stays to return all of them, and their tension, to their original positions as a starting point for tuning. You can't change it, anyway. Then tune the rigging as you normally would. It was historically made of the same materials as running rigging, only coated in tar for added strength and protection from the elements. The last principle concerns the amount of tension in the rigging. Remove mast from storage, crane mast in, re-tension standing rigging and secure, fit boom and all running rigging Bend Sails On Refit sails including battens, reef lines & control lines, luff slides/cars and sail covers/stackpacks. Start with the cap shrouds, centring the mast in the yatch (see how to centre the mast in the "Tensioning the Masthead Rig" section). In use, down haul tension for the mast is applied to hold the swivel connection downwards in position. The more rig tension being used, the less spreader length and deflection is required to keep the rig straight and vice versa. Rig-Rite stocks a wide selection of Mast Steps originally supplied by a variety of Manufacturers, as noted below, and is able to supply any type of Custom Mast Step, as required. the Classic Types. •Made other mast measurements based on Clive Millwards. The survey will assess your boat’s current rigging systems, including running rigging, standing rigging, masts, mast head, mast step, spreaders, stays, sheets, travelers, reefing, furling, and chainplates. By Jeff Kerr - S20 #338, Fleet 15, Dallas. 2 Add the mast measurement bands using self adhesive tape between 3 and 6 mm wide. , PT-1 Professional Hands-Free Force Gauge for Tensioning and Tuning of Shrouds, Cable Rigs, Wire Rope Standing Rigging, and Forestays, for 3/32, 1/8, and 5/32 inch Cable Diameter. Every year I put up the mast and wonder if I have the right tension on the diamond stays and the standing rigging. If you are at all unsure about tackling this task, play it safe and smart — seek out the services of a qualified rigger who has access to rig tension gauges and other specialized tools. Find Rigging In Stock Now. Lowering the centreboard will also assist in producing a fine light and balanced helm at the tiller. Rig tension. Tension does not tell you if the mast is plumb and raked properly, and it does not always tell you if the mast is in column. A mast aft rig, alternately referred to as aft-mast rig, is a sailboat sail-plan that uses a single mast set in the aft half of the hull. May 21, 2007 · I think there is a point of diminishing returns on rig tension and when you get to a certain load you don't really change much apart for stressing the boat. Rig tension must be taken on the jib before the hoisting the main sail as the forestay is only designed to support the mast when the boat is in the dinghy park. To make backstay tension affect the headstay tension as much as possible, tighten the lowers. On a rotating rig it is important to remember that as the mast rotates the leeward shroud is bearing against the leeward side of the mast. All rigging wire used on yachts has a tendency to sûetchÐ On a you should periodically check the tension on the shrouds and stays, tightening them up if it is required. Rigging and Tuning the Mast. 198 rod rigging measured on RT10 loos tension gauge 23 Units 950lbs. 5) Rig the jib halyard (5:22) Attach the clip to the bow eyestrap, and run the other end through the block at the bottom of the mast and to the silver cleat on the daggerboard trunk. Sight up the mast slot to make sure the mast does not bend in the middle one way or the other. DO NOT ATTACH CAMS TO THE MAST YET. Backstay (3/8”) tensioned to 15% of breaking load for local (Puget Sound) sailing. Aug 11, 2010 · Once attached to the eyebolts on each side, simply use the mast jack and raise it to put the tension desired on the rigging. Over the years AYS has evolved to incorporate the latest in ideas and technologies available to Australian and Asian marine industry. All rotating mast rigs can use lashings but more time is required to adjust the rigging. Rig boom and control lines, run halyards. you can develop the table of mast rake and rig tension for each pin setting (see below). Jun 26, 2012 · Short–handed sailing: The Solent Stay Posted on June 26, 2012 by Joe Cooper In an earlier post I proposed a second stay, called a Solent Stay as a way to be able to deploy the correct sail for the conditions, without struggling with lowering the regular roller furling headsail. The terminals adapt to any type of connection on mast. and ensures consistency in the mast set-up (sideways bend) Spreader deflection, rig tension and mast rake Remember these measurements are a guide only and may vary from boat to boat. Background. This is very important to remember when doing the initial rough tune in your driveway. Refit the mast into the boat. Same goes for the heady. You also have other tools such as the mainsheet, traveler, outhaul, and Cunningham. The information will allow whomever is reestablishing the stays to return all of them, and their tension, to their original positions as a starting point for tuning. This will allow bending of upper mast. This will cause the headstay to equilibrate and become more slack (less tension) all the while the backstay will increase its tension. Due to its role, standing rigging is now most commonly made of steel cable. Tighter is not recommended. Lay the mast horizontally, and check that the extrusion is just clear of the mast wall at its mid point. The forces in Newton [N] are made visible with contours and colours. Members CD and EF lie in the same plane, and CD is of length 7. Sep 12, 2016 · Then you measure you stay adusters with a vernier to determine the difference. The former of the mainsheet rigging. Dynamic rake. Included are some notes on specific sailing conditions and various boat models. Therefore, you should periodically check the tension on the shrouds and stays, tightening them up if it is required. Standing Rigging is placed under tension to keep the various spars (mast, bowsprit) securely in position and adequately braced to handle loads induced by sails, and is tarred to protect from the elements since it is stationary. The mast tip is pulled aft, until the forestay is tight, as you pull on the mainsheet, permanent backstay, and running backstay. Ease foot tension in 40mm from black band. This rig tension meter helps optimizing the shroud tension. Here are my notes: Standing Rigging Tensioning. Oct 19, 2019 · Rigging and Setup Rig Tension Firm, but eased enough so mast rotates freely Mast Rake Maximum rake, but keep enough leach tension on the mail sail: in light & heavy air keep a loose leach. The main types of mainsheet rigging systems on a dinghy are [ centre ] and [ aft ] as per the mainsheet rigging diagrams. Too tight and the rig is always under a greater load than is required. It will improve furling-system performance, and allows you to bend the mast aft if you have a fractional rig. The next thing to consider, as a result of the round cut into the luff of Mainsails when the mainsail is sheeted out the tension on the luff increases this is detrimental to sail set, to overcome this a number of methods for automatically releasing luff tension using a Cunningham have been tried – a good source of information on these is via. Centred the rig athwartships—Part 1. Attaching Headstay and Backstay 7. The screws are supplied in. Each rigging set up of course has its own strengths and weaknesses; learn more about the different rig types and benefits here. In a stayed rig, the boat heels due to wind pressure on the sails. I agree, the rigging will be sloppy loose if 1/4" wire is tensioned to 267 lbs (3. Insufficient tension can lead to shock loading resulting in damage to spars and rigging or even personal injury and optimum sail trim will be unobtainable. The finite-element model includes tension-only link elements for the rigging system as well as multilayer composite orthotropic shell elements for the mast. Shrouds, back stays and stays form the standing rigging. With a simple rig with a single pair of in-line spreaders, the key controls for mast bend are the backstay and babystay (or forward lower shrouds). How to adjust the tension on stays; & shrouds Loos Tension Gauge http://www. In rig tuning, the racing sailor is seeking a mast that doesn’t bend sideways but bends fore and aft in a controlled manner. One set will terminate just below the spreaders - the lowers. There are a couple of common spar sets for the Optimist. 0 Classic (Hull #58). This will cause the headstay to equilibrate and become more slack (less tension) all the while the backstay will increase its tension. Chocked the mast at the partners (keel stepped only)—Part 4. When the mast step moves forward, it decreases pre- bend and increases overlap with jibsail. Three quarters of mast only is supported by forestay. 8% of breaking actually). The "Lifting Safety" Subject Area, found in the Brookhaven National Laboratory (BNL) Standards-Based Management System (SBMS), governs all lifts conducted at BNL. The mast still bends forward with some back stay tension, but it can now stand more back stay tension than it could with the fractional rig situation. This rake will improve upwind performance and allow the rig to set in the correct position when the sails are set. To get the mast to bend more easily, ease off the lowers. The mast head crane should always be as short as possible - only just long enough that the back stay clears the leach of the main sail with the main boom on the centre line of the boat. The Wayfarer is a great boat for cruising, racing or training. With double lowers the after lowers will be looser than the forward lowers by about 1" of play. Running rigging is the cordage that is used to control the movement of the sails. halyards, which are the ropes or tackles usually employed to hoist or lower any sail upon it's respective masts or stays. Standing rigging comprises the fixed lines, wires, or rods, which support each mast or bowsprit on a sailing vessel and reinforce those spars against wind loads transferred from the sails. The shrouds and halyards will all be in position on the mast and will just require unwrapping. I'm using the high tech rope for this task called Dyeema. The Catalina 30 MkII, here in "tall rig" version, is a 29’11” monohull sailboat designed by Frank Butler. According to Seldén, the tension should be set roughly as tight as you can make it by holding the extrusion with your hand. Rig tension cannot be achieved if the boat is soft so care should be taken to keep an eye on the loads used. The mast defines the supporting structure for the sail, and the rigging system helps the team to control the boat. Tensioning them will be done later in the rigging sequence. Mast aft rigs are uncommon, but are found on a few custom, and production sailboats. Set the backstay/forestay to sailing tension—Part 4. We suggest you rig it with the attachment to the spinnaker coming down on the port side of the hounds and the lead to the skipper coming down on the. Here is a way to cheat a little: Drive two nails side by side in the wharf about two inches apart. There are 4 different sizes depending on the wire diameter. The good news is that. Too tight and the rig is always under a greater load than is required. The "Lifting Safety" Subject Area, found in the Brookhaven National Laboratory (BNL) Standards-Based Management System (SBMS), governs all lifts conducted at BNL. Sight up the mast slot to make sure the mast does not bend in the middle one way or the other. Unfortunately, we had the lower shrouds mounted on the wrong side of the diamonds, so the yard crew shimmied up the mast and fixed them for us. This ensures maximum rig tension fore and aft. Now any sailboat 22' to 50' can take advantage of the substantial performance gains of PBO rigging. If the mast is stepped on deck the rigging will be tighter than a mast stepped on the keel. Backstay (3/8") tensioned to 15% of breaking load for local (Puget Sound) sailing. See far right. Rig tension. The mast raker line should ONLY be used downwind to help keep the rigging from banging around too much. The most popular are the Proctor Miracle and Sidewinder Gold. Now any sailboat 22' to 50' can take advantage of the substantial performance gains of PBO rigging. ] This leeboard idea I got from my friend Richard Frye. If the bow wants to turn away from the wind, the mast is too far forward, so you'll need to move the mast back a little. Less rig tension will produce a deeper jib shape, giving more power with less pointing. Compression of the mast step is a potential problem on older boats with deck-stepped rigs. THANK YOU Selden Mast guys for all the documentation and Jason Pinko for an outstanding lesson and rig tune job!. OUTHAUL: A line used to haul the clew of a sail out to the end of the boom. until you have the desired mast rake with a backstay tension 2/3 of max. Aluminium Mast. The 2 sets of spreaders and the backstay whip are taped to the mast. Rigging should then start with the mast having a slight aft lean of about 20mm at the mast top with the jib connected. To get the mast to bend more easily, ease off the lowers. If you want to invest more you can order from RC yachting accessory dealers as well and save maybe 50g with the rig. and ensures consistency in the mast set-up (sideways bend) Spreader deflection, rig tension and mast rake Remember these measurements are a guide only and may vary from boat to boat. Jan 02, 2019 · The rigging of a ship can be divided into two main parts: “Standing” or “Fixed” rigging, which is used to support the Masts and Bowsprit. MaRSoft: Automated Yacht Mast and Rigging System Design and Analysis Dylan Soares de Melo CENTEC, Instituto Superior Técnico, Avenida Rovisco Pais, 1, 1049-001 Lisboa, Portugal. , will result in a vertical mast compression of 750 x Cos 15° or about 720lbs. Mast design and construction. Making Sense of Rig Tension. Rig Tension Gauge. You might need to first loosen any overly short turnbuckles. Most sloop-rigged yachts will carry two sets of shrouds. This patented design is highlighted by its self-elevating floor and ground level assembled mast. Rig Tension Updates Retrofit Details Extra Fastener added to Top Spreader Gennaker Halyard Deflector Vang Strop Mast BOM (Bill of Materials) - Parts List Mast Sub Assemblies BOM- Parts List Rig Spare Parts Dealers Warranty About Southern Spars Flow simulation of 49er during rig development. And finally back to the mast If you do the math on the surface area of the standing rigging on your boat—Sum the total length of standing rigging, multiplied by the various thicknesses, it is a lot of square units. This in my eyes would help tension problems. 2 Add the mast measurement bands using self adhesive tape between 3 and 6 mm wide. and came up with a tuning guide from North Sails. I start on the yardarm ends and go around the mast on the opposite side. With “Hints and advice”, we aim to share with you our practical experience. Essentially, any boat will benefit from having its mast(s) in the right position in the boat with the proper amount of tension applied to the shrouds and stays. That way if you stuff up you can at least return to this setting. 2) to transfer the load of the headstay to the masthead to counteract the backstay tension. Tension measurement is found in a wide variety of industrial sectors and applications such as rope tension or wire tension of high voltage cables and power lines, winches, suspension cables of elevators and lifts, but also antenna masts, catenaries, festive lighting, street lighting, Christmas illumination, gas torches and flares as well as. How to adjust the tension on stays; & shrouds Loos Tension Gauge http://www. The cabin top can push down with the load of the mast and rigging and crush the mast post up into the deckbeam. While you there check that the mast track is perfectly straight, along it entire length, through the theodolite and that the tailing edge of the rudder is parallel withthe keels trailing edge. RIGGING YOUR SAIL: 1. Transverse Tune. Everything on your boat works properly. With rig up and no sails, head to wind – pull on backstay – watch the shrouds between the two sets of spreaders – if one goes slack before the others, tighten it, or loosen the opposite – this is how you know your fixed wires at the top are the same length I suggest you sail with the same tension for a while, and get used to the effects of sail trim. the assembly into the top of the Mast tube. Rigging and Tuning the Mast. She was built by Catalina Yachts (United States) and made of GRP (glass reinforced polyester). MAST: An aluminum tube designed to stand on end so as to support a boom plus one or more sails. , PT-1 Professional Hands-Free Force Gauge for Tensioning and Tuning of Shrouds, Cable Rigs, Wire Rope Standing Rigging, and Forestays, for 3/32, 1/8, and 5/32 inch Cable Diameter: Force Gauges: Amazon. I agree, the rigging will be sloppy loose if 1/4" wire is tensioned to 267 lbs (3. The rig The rig – a combination of masts, booms, rigging and all types of equipment. The problems you can get into are two.