Running Rigging Calculator All you do is select your boat model and our calculator instantly specs the size and lengths that will work for you. I have an older Hallberg Rassy 35 (yep, thats the new challenge) - and currently the rigging appears to be 5/16" wire (that's what the local rigger measured, it seemed slightly smaller to me but he probably does a better job at measurment). From the Rigger According to industry standards, the anticipated lifespan for stainless steel rigging is 10-12 years for wire and 15-20 years for rod. However we had to make some assumption and one was that each pair of shrouds would be the same length. On some boats a loop with T-bone is is used to shorten the checkstay lashing by a few centimetres. The boat was in the water, we first had to avoid the risk of unscrewing a turnbuckle and accidentally unhooking a shroud. If I were only using turnbuckles for tensioning then I might have gone for DM20 to avoid running out of tensioning due to creep. It can be minimised by keeping static loads as a small % of the breaking strength, so grades of Dyneema with a higher breaking strengths will creep less under the same load. there is no M11 size. The swept back spreaders ensure that the mast can stand up even without the backstay, which is no longer structural. Stainless Steel Wire Rigging and Wire Rope - Jimmy Green If you would like to measure your rigging yourself proceed to step 5. Continuous rigging is more common on older and more traditionally rigged boats, while newer boats and performance-oriented sailboats often have discontinuous rigging. I'm not sure that the distribution of the force on the sail, in force at the top and on the boom, is correct. The problem is solved with the introduction of structural lazy jacks. Good question. The Pogo 2, designed around 2003-2004 is the Mini 650 with most boats built. The cost to replace standing rigging obviously varies from boat to boat. If these are too soft the mast will sag to leeward between the first spreader and masthead. The Lift-All Sling/Leg Length Calculator has been designed to assist you in selecting the appropriate size slings for your lifting applications. Check the thread type (UNF or Metric) the thread size (standard or upsize) and, just to make sure, the thread direction. In fact, I had sailed on an identical boat for a total of about 60,000 miles. And word of warning jobs often get expensive because the customer decides, once the mast is down, to add furlers, masthead units, new sheets and halyards, etc. Could someone please speak of the advantages / disadvantages of increasing the. For example, low stretch is very important in a halyard but not necessarily in a sheet. 10M OEM Rigging Wire Headstay Backstay Upper Shroud Lower Shroud Size 3/8" 3/8" 5/16" 9/32" So is the rigging over-sized on the 10M? Save my name, email, and website in this browser for the next time I comment. Both are based on the this formula: RM30 is the righting moment at 30 degrees heel It is important to use a tape measure under tension and that does not stretch. Lower Fore St, Beer, East Devon, EX12 3EG. And they often find badly damaged Read more, Question: When your riggers talk about standing rigging, they often use terms I dont recognize. Using Colligo's stretch calculator it looks like I should go with 5/16 and 1/4" Dyneema respectively. These additions add up quickly and affect the cost of parts, labor, special order shipping, taxes, etc. They make the information from manufacturers such Marlow rather more accessible. Whats up? As we were stationary in port and without sails, I could totally ignore the D2s until the end. This will help to prevent metal fatigue.Check the dimensions of the fixing points for your shouds and stays, traditionally known as Chain Plates: The picture below shows a swageless eye terminal (top), a Talurit eye (middle), and a swageeye terminal (bottom).Swageless terminals are characterised by a short overall length and a relatively wide body diameter.Taluritis the process ofpressing the wirein a soft copper ferrule.Swages are slim and relatively long overall. We will talk here specifically about boats with swept back spreaders. To preserve the left-right adjustment symmetry, we unscrewed the V1s turnbuckles two full turns each side. Get the full sizing and inventory of: - the standing rigging - the running rigging - the mast section with weight and size - gravity center localization - and mast tuning report 4. You're right (I need to think about). And PLEASE do not buy a used boat without a professional rig inspection! Make sure your turnbuckle is centered between the studs for accurate measurement. Excuse me the question, stays should be placed in a "free-standing mast"?. After attempting to sort through the many personal. Dont trust us for the sizing of your own rig! This on a mast with two sets of spreaders. Unstep the mast and remove the rigging from the boat. All you have to do is input the span of the beam, the magnitude of the point loads, and their distances from support A. Despite the absence of a backstay its not runners or checkstays that keep the mast up. This curvature lets you bring the fat of the mainsail forward flattening the sail. That is because a Dyneema line the same strength as the Stainless Steel it replaces would be too stretchy to work. The initial task is totake some basic measurements.A good tape measure combined with a good eye may be sufficient, but vernier scale calipers will guarantee an accurate result.Digital versions are now available at a very affordable price and they make the process very simple to read and record. From the Rigger: Most boat owners do not climb their masts regularly, but our riggers spend a lot of time up there. We had created a perfectly straight mast track, an adequate rake and a pre-bend. The standard seems to be 2.5 to 3.0. Cunningham - Boom length x 1. Stainless steel isnot a malleable metal, so the pressure applied by the roller dies is exceptionally high, creating a solid bar of material. The rake shifts the sail centre aft and the bend in the mast flattens the sail, both of which we do not want in light winds. They are all full re-rigs from 119 wire with new rigging screws (please note all examples given are for supply only): This system with T-bone on the checkstay give you maximum flexibility and is obviously suitable for those who know how to use it. Usually they are made with dyneema and not just simple polyester. If your end terminal is a threaded stud measure to the end of the stud; include the length of the threaded portion, note whether it is left or right handed, and the thread size. As mentioned, runners can be used in different ways. for a mid 20 ft boat, the same change in riggin saved as little as 50 lbs. The spreaders are not perpendicular to the fore-aft axis but swept towards the stern on the horizontal plane. The top terminals that attach to the mast vary according to the origin (manufacturer) and the age of the mast.It is also important to bear in mind that there may have been some significant alterations since your yacht was first commissioned.The basic formats for swaged ends are Fixed Eye, Fixed Fork and T-terminal. standing rigging size calculator - jusben.com They sell 100m drums and 50m hanks which is handy (they can also make custom lengths with a variety of splices etc). Add shackles and splices from our Running Rigging Builder Also Marlow describes them all and includes comparison charts. Standing Rigging (or 'Name That Stay') - Rigworks Chainplates Revisited - Practical Sailor When the T-bone is undone, the runnner has more relative tension than the checkstay as by undoing the T-bone we have effectively lengthened the checkstay. For an average 40-foot boat, Cockerill estimates about $100 per foot to re-rig with wire rigging ($4,000), as well as the round-trip cost to haul and launch the boat and unstep and step the rig (an additional $2,500 or so). From the Rigger: Lets play Name that Stay Forestay (1 or HS) Read more, Question: Do you have guidelines for selecting halyards, sheets, etc. The Event, its name, logo, website, social media pages and all their content are the sole property of Marco Nannini LTD. All rights, title, intellectual property, Copyright, contractual and other entitlements of and relating to the Event, its name, logo, website, social media pages and all their content, vest in and are retained by Marco Nannini LTD. Why not schedule annual service as you would with a car? As posted above it seems like synthetic standing rigging is still the wild west. It also has a module for calculating continuous beams and large facilities for manage the various materials used in the construction of modern boats. Website created by Primeconsulting. The wire diameter With this procedure we were able to restore a situation where the two V1s shrouds were the same length and with the same adjustment. Calculating Dyneema for Standing Rigging - Cruisers Forum One other very important comment on sizing for creep: Material creep is a function of length, long sections will have more creep than short sections. Standing rigging is the collective term for the system of wires (or rods) that supports the mast, both fore-and-aft and laterally. lol. If you put your hands on the standing rigging without following a sequence and without knowing what you are doing, you end up like a dog chasing its tail. Threaded Bronze Inserts ensure superb adjustment without seizing or galling and the swivel toggle action allows full articulation in two planes. Load Calculator - Stren-flex We wont be re-rigging the main until after the 2021 season so have plenty of time to measure properly. Beam Load Calculator The mysteries of sizing Dyneema standing rigging. The mast of the Class40s are, pass me the term, quite ignorant, and dont it is not about fine tuning that last half turn. The price difference of the DM20 lines over SK99 or SK78 is still huge. The most popular choice is the Stalok version (top) which utilises a chrome-plated, forged bronze body. The direction of the thread is only of vital importanceif you are planning to change the stud terminal, but keep the existing turnbuckle.Take a close look at the two different threads in the picture below.Thehigher sidedenotes thedirection of the thread. I am not aware of any such cases among Class40s. So, I resorted to trusting my sensorial memory. How to set up your rig: tension your shrouds on masthead or - PBO Designers typically specify standing rigging and attachments, including bolts, that are 1.3 to 1.4 times stronger than the calculated load. With the boat in the water and not wanting to take any risk, we didnt want to get to unhook any turnbuckle. The backstay is both an element of the standing rigging but can also be tuned. for my sailboat? In our case it was evident that the port turnbuckle had many more turns than the starboard side, compared to the thread of the V1 above. Both SK90 and SK99 are heat stretched at the fiber level so that makes them a little more difficult to heat stretch completely at the braided line level. See other options in diagram to the right. Replacing your turnbucklesCheck the thread size (standard or upsize)Select a turnbuckle which provides articulation e.g. If you are replacing your turnbuckles, make sure the existing turnbuckles are adjusted to their normal set position for sailing before taking your measurements. If your rigging terminal contains a pin remove the pin and use this as your attachment point. The best bet is to shop with your old rope in hand. 1/2beam is half of the shroud base width Our preferred rope supplier, Jimmy Green Marine, has lots of information and a range of Dyneema for standing rigging from different suppliers. If you can get the cap, Colligo, Colligo, Colligo. This is to avoid the unpleasant situation of having a hard time getting to re-attach one. For a -inch turnbuckle with a -inch toggle, the chainplate should be at least inch thick. Do it yourself Standing Rigging Quotes - Jimmy Green All rights reserved. UNF is the normal thread for standing rigging turnbuckles.Metric threads are possible on European manufactured masts - replacements are available.Switching to UNF is a good idea if you are replacing a complete stay because replacement components will be easier to procure.Imperial size wire is also quite rare in Europe, but is readily available in North America.Imperial components can be sourced but will generally attract a bespoke quote and much longer lead times. The line is also lighter and it doesn't absorb water, as compared to Vectran. There are additional developments of these three concepts: T-terminals areperhaps the trickiest identification recognition issue that you will face and it is also extremely important to get it right, so that your new terminals seat properly in their appropriate mast slot.The fittings may look similar, but if they are not specified correctly, theymay not fit the slot properly.Even though it may not immediately be apparent, incorrect seating can lead tostainless steel fatiguewhich, in turn, may cause premature failure.If your existing fittings don't seem to matchthe replacements that are available, it will be prudent to fit new, matching plates on the mast. Then we choose what percentage of the breaking strength of the Dyneema we want this to be. They are not included in our estimate. The tension gauges are especially designed for accurate, repeatable tuning of a sailboat's standing rigging. Required fields are marked *. Control Lines: Outhaul - Boom length x 2. With a fractional rig they provide extra support, and become partially structural in reducing the workloads of the last part of the mast not reached by the shrouds. There seems to be a lack of information on the web about the sizing for standing rigging. Can you break it down for me? But I have seen many badly adjusted masts and not by just a little. By giving the D1s a few symmetrical left-right turns we were able to straighten the lower part of the mast. All in all it will probably only change your solent to staysail switch point by a knot of wind or two. Replacing your turnbuckles. Most lines are pre-stretched. We deal directly with the manufacturers of the sailboat standing rigging components that we sell, and we know the product because we use the product. Question: My halyard is binding. Tensioning the backstay, the central part of the mast advances forward creating a slight C shape of the mast seen from the side. While I would love to buy Marlow as a British company, they are a lot more expensive. Things to look for include corrosion, pitting, cracks, and broken strands or meat hooks on the wire. What makes this even more complicated is that a) there are lots of variations of Dyneema available, also b) each rope manufacturer has their own ways of treating Dyneema (eg pre-stretch, heat treatments, and coatings) which makes comparisons even more difficult.