[Update] or 9mm DynICE Dux for the Mizzen and 12mm for the Main. I would suggest using larger than 1/4" dyneema. The current shrouds are 5/32" diameter. I found the Colligo information less helpful, it feels to me that they have stayed with the same materials despite the new developments. What does all this mean? Jimmy Green have 100m drums of 8mm in all 3 types of Dyneema from Marlow: Marlow Excel D12 Max 78 (SK78) is 1,145Marlow Excel D12 Max 99 (SK99) is 1,400Marlow M-Rig Max (DM20) is 1,337, LIROS D-Pro-XTR (SK99) is 868LIROS D-Pro Static (DM20) is 1,140, The Hampidjan (recommended by Colligo) 8mm rope is. If it does not rotate, spray some WD40 but never twist the rod rigging. One area still to be worked out is how much length to allow for creep. By completely eliminating the backstay from the the list of elements constituting our standing rigging, which presented itself as an obstacle to increasing the roach of a mainsail, it is now possible to have all the roach we want and even square top mainsails. Continuous rigging is made up of single pieces of wire that run from the top of the rig to the deck allowing the tuning to be done at deck level. be exactly level with the same number of turns on the upper and lower par. If your running rigging leads back to the cockpit, remember to account for that in your length. In our search we have found three sites particularly helpful. When riggers cut rigging in the workshop they are very unlikely to make pairs of shrouds of different lengths. Do it yourself Standing Rigging Quotes - Jimmy Green How to Measure Standing Rigging - Sailing Services I hear about these guys on every forum everywhere. 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. Question: My halyard is binding. The picture below reveals the variation in thickness and head angle to the swage. This could happen if theres something inherently wrong with the measures taken that would forced you to work at the limit of the available turns. I wish the rope companies made the creep properties easier to find. Once on deck I noticed that the mast was much better already, the forestay was tighter, even though we hadnt touched the V1s at all. Once the wind increases and we take the first reef, the runner is no longer needed (especially upwind). You cant cut corners and get the same results as the pros. (contrasted with running rigging). How to use Tension Gauges - Loos & Company, Inc. All the vertical tension turned into compression and bend. My guess is 3/8". T-terminals or shroud terminals often provide the most difficult decision.There are t-terminals on the market such as the Sta-lok and OS/BSI varieties which are sometimes referred to as universal.This means that they aredesigned to fit a variety of different backing plates, and they may well prove to be a useful resource if your existing terminals can't be replicated.However,it is bestto match the t-terminal to the mast backing plate from the same manufacturer.The thickness and width of the head,as well as the angle of the load bearing 'shoulders', are all critical factors in selecting the correct version. The second is a calculation based on the current rigging size. Type in the parameters 2. If I were only using turnbuckles for tensioning then I might have gone for DM20 to avoid running out of tensioning due to creep. Cruising boat rigs can have up to three pairs of spreaders, depending on a number of factors, including the boat's size and type. Website created by Primeconsulting. That is, the turnbuckles had not been hooked and tightened at the same simultaneously on lower and upper thread. This type of rig, nine tenths fractional, has two orders of spreaders. The Pogo 2, designed around 2003-2004 is the Mini 650 with most boats built. Standing rigging Definition & Meaning | Dictionary.com With this expedient you can shorten the checkstay relative to the runner to the point that you set the checkstay and the runner remains effectively loose. First we wanted to take care of putting the mast straight and solve the problem of its excessive rake. We would be happy to loan you a tagline (strong and thin) to use as a place holder, or we are always happy to visit your boat and tag it out for you. The Bluewave turnbuckle (bottom) is for racing enthusiasts who want to easily adjust settings on the water. Whats up? Others, such as Mr. E.Sponberg, make other distribution of forces. Tapped and Formed:Some Swage and Swageless terminals are made of several components.These partsmay be tapped together like the strap toggles below. Your email address will not be published. You can use the righting moment and rig geometry to calculate rig loads. In particular, the curvature between the first set of spreaders and the masthead increased. The forestay turnbuckle in this case, and like on many other boats, was inside the furling drum. a) we need to replace the mizzen rigging before we launch b) there is no dock or anything at the boatyard so difficult to do c) Im not sure how this would work for a mizzen mast as it is shorter and so far aft, therefore it would be very difficult to heel the boat that far with just the mizzen and not very typical of the mizzen usage. I.e., that the problems were only in the adjustments of the turnbuckles. Can Galvanised Steel be used with Stainless Steel? All rights reserved. A customer came into our shop the other day to discuss his 33-year old rigging. Attachment to the Mast, the top terminals. 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. RIGGINGS AND MASTS CALCULATIONS ONLINE RIGGINGS AND MASTS FREE DATABASE: Just in 10 minutes! He asked Isnt the industry standard just a ploy by manufacturers to sell more wire. Usually they are made with dyneema and not just simple polyester. This on a mast with two sets of spreaders. If in doubt, get a professional opinion. Not forgetting the compression loads from the stays too. 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 benefits are less windage and less weight aloft. Before tightening the forestay, however, I wanted to loosen the the V1s a little so as not to induce further compression in the mast. Hole diameter-to ensure the new pins will fit correctly. Member Album by TANSL | Boat Design Net https://www.boatdesign.net/gallery/albums/member-album-by-tansl.4186/, TANsl https://www.boatscantling-iso-12215.net/, (You must log in or sign up to reply here.). 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. Things to look for include corrosion, pitting, cracks, and broken strands or meat hooks on the wire. These guidelines are particularly useful when estimating the cost of a project. 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. Keith Anderson is a 40-year veteran of the crane and rigging industry. This will be true for all three of your reef points. The flogging of a loose shroud can actually be harder on wire than steady pressure. Both are based on the this formula: RM30 is the righting moment at 30 degrees heel Selecting Rope - Length, Diameter, Type - RIGWORKS INC. Check the thread type (UNF or Metric) the thread size (standard or upsize) and, just to make sure, the thread direction. Looking at the Jimmy Green table for all the Dyneema they sell we find that 7mm is good (except Liros dont sell 7mm so it has to be 8mm for the Liros D Pro Xtr [SK99] or 10mm for the Liros D Pro Static [DFM20] ). 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. Want to prolong the lifespan of your rigging? Raise then the equations of equilibrium will be more easy task. To reduce the bend we had to reduce tension of the V1s but also monitor the tension of the D1s. You can use a large nail or screw on the dock. In this article we will deal with the tuning of standing rigging of a typical sailboat. So we can put back the T-bone that shortens checkstay and use it as a counter cable for the inner forestay. From the Rigger: Most boat owners do not climb their masts regularly, but our riggers spend a lot of time up there. NE ropes has STS-HSR. Two full turns lengthened the V1s by 7-8mm and the impact was visible to the naked eye. Effect of angle on capacity. Does anyone know if 5/32" is the factory size? Taking the upper and a single lower of 5/16" gives a safety factor of 3.1. With proper measurements (wire diameter, pin sizes, wire lengths), we can give you a very accurate price for the standing rigging itself, but there are often unforeseen complications during the job (bad spreaders, corroded mast bases, hardware that is stripped on the mast, frozen pins, chainplates that are failing, etc. Im least concerned about Constructional Stretch or bedding in. If you are in any doubt about replicating your existing T terminals, please take some close-up photos with dimensions - the width, shoulder length and overall depth of the T shape. Tuning is required at each spreader level due to the wire terminating at each spreader tip. The overall shroud load is divided up between your shrouds. Seldn estimates the main reef clew force to MSL (maximum in service load)=5.5kN, the reef tack load to MSL=3.5kN (10 Newton=1 Kg f). This translates into a less dense braided product that produces more constructional elongation when put under a constant load, like pretension in your rig. Stainless steel isnot a malleable metal, so the pressure applied by the roller dies is exceptionally high, creating a solid bar of material. T-terminal and some have more than one common name, but this guide will help you to recognise which ones are correct for your rigging. They make the information from manufacturers such Marlow rather more accessible. only available on wire up to 6mm diameter, because larger diameters are not flexible enough to turn around the tight radius of a thimble without detrimental deformation, the most economical method for professional wire termination, Ideal for fittingonto oversized pins andattachment points with the additionofa stainless steel thimble, can also be used to form a loop for masthead attachment. We progressively lengthen the checkstay lashing until we get to a setting where, when tightening runner and checkstay there is a similar tension on both. Rigging Math | SailNet Community That said, on a nine-tenths rig it is unlikely that you could break the mast tip under spinnaker just because you did not set the runner. Looking at the mast from the side you could see a beautiful shape without irregularities that gently curved back. We also attached spinnaker halyards one to the left and one to starboard to an eyebolt. If you measure a pre-stretched line before splicing then you can stretch it after and by measuring know if you have removed the constructional stretch. My experience with 2 different 28.5 footers that I have owned is that 7/32" for headstay, backstay, and upper shrouds are very sturdy. 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. Of course, you are welcome to label all your rigging, pack it up and send it to us to replicate.If you live near enough, you can bring the rigging yourself and discuss it with our Rigging team, it will be well worth the trip :-). If your standing rigging does not match our diagram, or has been modified, then the quoted price is not applicable to your boat. Their role is not simply to contain the main when dowsing it. The righting curve is fairly straight line from 0 to 35 or so and the rate is actually decreasing so using the 716 lbs/degree will give a slightly high value at 30 degrees which is nicely conservative. In the Toss method 25% load was used for each lower shroud to match his example. And PLEASE do not buy a used boat without a professional rig inspection! Creep will mean your rig needs re-tensioning over time. In our case the mast bent too far forward and the forestay was particularly soft. 100m of the 8mm should be plenty for the Mizzen with enough spare to replace several shrouds.Possibly from our back of the envelope calculations 150m of the 12mm for the Main should also give enough for several replacements. For an idea of the costs involved to replace your standing rigging, here are some examples of sets of rigging we have made for customers in the past 12 months (prices as of Sept 2022). The rig of this boat is not particularly extreme or delicate, being the Class40s designed for great ocean navigation. You can also see our newsletter archive here, How to Identify and Specify Your Standing Rigging Components, LIROS Polypropylene Floating Mooring Warps, LIROS Super Yacht Mooring Polyester Docklines, Mooring Lines - LIROS Recommended Diameters, Mooring Warp Length and Configuration Guide, How to estimate the length of a single line Mooring Strop, LIROS 3 Strand Polyester Spliced to Chain, LIROS Octoplait Polyester Spliced to Chain, G3 Calibrated Stainless Steel Anchor Chain, The Jimmy Green Guide to the Best Anchor Ropes, Anchor Rope Break Load and Chain Compatibility Chart, Calibrated Anchor Chain - General Information, Calibrated Chain - Break Load and Weight Guide, Galvanising - Managing Performance and Endurance expectation. How to Measure Standing Rigging With the mast and rigging still standing and set to its normal sailing positions, tape or mark all the threads of the studs where they exit the turnbuckles. On this Class40 the runner was attached to the first pulley and therefore its length was a given and could not be adjusted. For #1, you might be able to lower the keel 1/4 of an inch, depending upon the size of the boat. Once the sail was lowered and the retaining bolts were unscrewed, it was possible to raise the drum and access the forestay turnbuckle. Standing rigging is the collective term for the system of wires (or rods) that supports the mast, both fore-and-aft and laterally. When we fabricate a piece of rigging including a turnbuckle, we will make it to your specifications with the turnbuckle open 2/3rds to allow tuning of the rig. This is our highest recommendation to make sure your rig fits properly. Since it was not me who had mounted the mast, I could not be sure that the turnbuckles had been inserted correctly, i.e. Add splices, shackles, and whipping with a single click. The strength, minimal elongation, excellent corrosion resistance and general performance of KOS 1x19 construction stainless steel wire are suitable for most sailing yachts. It is based on our specific boat and shares our thinking for our uses. Despite the absence of a backstay its not runners or checkstays that keep the mast up. So we had left-right and fore-aft problems. Swaged terminals are manufactured using 1 or more of the 4 processes listed above. Staying within elastic limits gives safety factors of 2.5, 2 and 1.9 respectively. We forego some fine tuning for safety offshore. Unfortunately, there are not always visual clues that your rigging has passed its life expectancy. We have a huge rope wall at Rigworks and are very proud of our selection and expertise. But have you ever seen a boat so rigged? Check that everything is straight and true. Although we work closely with the boatyard during the job, you will need to negotiate yard fees (crane, mast lay days, etc.) It is indeed a complicated process in using a braided line for standing rigging. Stainless Steel 1x19 Wire Rope Rigging with KOS Wire - Jimmy Green Their page (from 2015) Before Ordering Your Colligo Dux Rigging links to a PDF table for sizing. 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. But I mean, why dont hey have prices listed on their site?! As mentioned, runners can be used in different ways. It is important to use a tape measure under tension and that does not stretch. - MyR: software for the calculation of masts and rigging. Rust and discoloration can indicate the location of a crack or crystallization of the metal. Decide which you want (no doubt Colligo has a guide for bury amounts of their DUX). Standing Rigging CalculationBack to Rigging By appearances the 10M is a very heavily rigged 33 footer. After attempting to sort through the many personal. The standing rigging is all rod on this boat. If you cut heat stretched SK90 or 99, you will get 12 strands that fall apart. Here are a few suggestions. A DIY Solution to Tired Standing Rigging - Sail Magazine Speaking of standing rigging we have to open a parenthesis on the types of rigs possible for a sailboat. Hey all, I'm going to do my standing rigging myself with Dyneema using thimbles and dead eyes. This is to avoid the unpleasant situation of having a hard time getting to re-attach one. The bend instead arises from compression of the mast given by the tension of the V1s, these pull down the mast that bends forward. Taking 70% of the lower shroud capacity gives a safety factor of 3.4. Below are some rough guidelines to help you make an educated purchase. there is no M11 size. The Loos tension gauges take the guesswork out of cable or rod tension adjustment. For safety and peace of mind, however, sailboat chainplates require attention and possibly upgrading. 5 languages options can be chosen: English, Spanish, French, German and Portuguese. We have had many customers who have found a great deal on a used boat only to discover that they need to spend a small fortune on new rigging. Also Marlow describes them all and includes comparison charts. Or maybe a lot of other boats are under-rigged? Good question. The original spec. So the 3 different calculations give us (for the Liros D-Pro-XTR), Colligo (SK75): 7mmMarlow from Jimmy Green (DM20): 12mmRigging Doctor for SK99: 8mm, Colligo (SK75): 11mmMarlow from Jimmy Green (DM20): 15mm (but 13mm is pretty close)Rigging Doctor for SK99: 10mm. The tension of the low diagonals D1s controls the angle up to the first set of spreaders of the overall curvature that the mast takes up to the masthead. I need to ensure that the lashing length is enough for me to still tension the shroud at the end of its life. These additions add up quickly and affect the cost of parts, labor, special order shipping, taxes, etc. After that I went back to looking at the mast track and, no wonder, the mast was perfectly straight on the left-right axis without any curvatures. Before Ordering Your Colligo Dux Rigging, lots of information and a range of Dyneema for standing rigging from different suppliers, Simplifying fitting a Jordan Series Drogue Sustainable Sailing, Dyneema / Synthetic Rigging Summary Sustainable Sailing, Dyneema Shroud and Chainplate progress Sustainable Sailing, Follow Sustainable Sailing on WordPress.com, DM20 (least creep, but also not as strong, most expensive), SK78 (the first Dyneema with reduced creep). With this procedure we were able to restore a situation where the two V1s shrouds were the same length and with the same adjustment. The fittings and wire gradually reduce in size going up the mast as the loads decrease. This table shows the normal UNF thread sizes for each wire diameter: This table shows the normal Metric sizes for each wire diameter: Note that there is no natural metric equivalent to 7/16" i.e. Deckvests need to be maintained so that Read more, Genoa Halyard (fractional rig) Mast length x 2, Spinnaker / gennaker halyard Mast length x 2.5, Main Sheet Boat length x 2.5 (varies with the mechanical purchase being used), Asymmetric Spinnaker Sheet Boat length x 2.5 to 3, Reefing Line (reef 1) Boom length x 2.5. The reality is that Creep, even in SK75, can easily be designed around for standing rigging on a sailboat. On the Class40, even though the boom is made of carbon, we can imagine how much the boom plus mainsail would weigh especially if full of water. I don't have a direct figure for RM30 but I do have IMS measurement data for the 10M and can extrapolate a pretty good approximation. 3/16" for lower shrouds is also what I had. 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. The distance between the halyard and the mast at the boom is your rake. Standing rigging definition, rigging remaining permanently in position as a means of steadying various spars, shrouds, stays, etc. Set sail with the benefit of Team Jimmy Green expertise. Runners attachments seen from the mast top Although the mast is made of carbon rather than aluminium, the rig is the same as that of a Mini 650 Pogo2 from Structures shipyard. Standing rigging: step by step guide on how to tune it on your sailboat This means that when the main halyard is released, the boom falls onto the coach-roof. Photos will help, but detailed dimensions are essential to ensurecorrect identification.If practicable, send a sample fitting or wire stay to the Jimmy Green Rigging Team.We can then relieve you of the responsibility by positively matching your existing terminal to the correct replacement. Our riggers can also tune your rig, either at the dock or under sail. It is your responsibility to assure that the slings you use are appropriate for your application. I jibed without runners in 50 knots of wind and nothing happened.
Hobart High School Football Coach Wife,
Volleyball Courts Open To Public Near Me,
Dodgers Coaching Staff 2021,
Articles S
