If we follow the table they include from Marlow for their DM20 line (Marlow M-Rig Max) then sizing is huge: 11 or 12mm for the Mizzen and 15mm for the main. 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. From the Rigger: First, if your old rope served its purpose but needs replacing, we recommend duplicating it as closely as possible Read more, http://rigworks.com/maintaining-your-standing-rigging/, http://rigworks.com/wp-content/uploads/2016/03/Standing-Rigging-Care.pdf, http://rigworks.com/the-scoop-on-rig-inspections/. Illustrations from left to right below:Bluewave Hook Terminal, Hasselfors Flathead, Hamma spoon, Petersen shroud terminal, OS/BSI T-terminal, Sta-Lok T-terminal and Navtec T-terminal (now discontinued). Mast and Rigging calculations | Boat Design Net I.e., that the problems were only in the adjustments of the turnbuckles. When I arrived on this boat to check the mast, there were two problems noticeable with the naked eye. Can Galvanised Steel be used with Stainless Steel? Their sizing post is Sizing for Creep. After this introduction, lets move on to a practical case. Both operations improve upwind performance. Its a popular model of Class40, a first generation Akilaria RC1, designed by Mark Lombard, from around 2006. For the Main Im thinking 12mm (larger than either the Colligo and Rigging Doctor calculations) and the largest size of Liros D-Pro-XTR available). For example, assume a 2,000 pound load is to be supported by 2 legs of a sling. Contrary to popular thought, a slack rig is more punishing on a hull than a properly adjusted, tight rig. 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. Once you know the diameter of the wire, it will give you the load both in kg and as a percentage of its breaking strain. Many people believe that only heavily used rigging needs to be replaced, but the continuous flexing of loose wire that is not under load can take a serious toll as well. only hand tools are required for installation, can also be completely disassembled and reused (some models require inner cone replacement) providing great longevity, can be manufactured to very precise tolerances, the waste material can be recycled to create further parts. The forestay turnbuckle in this case, and like on many other boats, was inside the furling drum. He said it looked fine. This is not to say it was already set right, but we had zeroed the lateral tension errors. Balancing the risks and benefits, at the end of the day, on my boat I decided to eliminate the T-bone and seek for a medium setting. Using Colligo's stretch calculator it looks like I should go with 5/16 and 1/4" Dyneema respectively. When planning Dyneema rigging the area we have found most confusing is deciding on the size of Dyneema we should fit. Jusben Engineers is a major B-BBEE engineering, construction, and maintenance contractor, delivering complex . It does seem like some competition is popping up here and there for dux. But, the overall curve of the three sections of the mast was not yet regular. As we go through the sizing calculations comparisons are difficult as they dont use the same version of Dyneema. For more information on rig maintenance, visit our prior Ask the Rigger article at http://rigworks.com/maintaining-your-standing-rigging/ and download our rig-care pamphlet at http://rigworks.com/wp-content/uploads/2016/03/Standing-Rigging-Care.pdf. As a side note, alot of people have miss-diagnosed constructional elongation for creep. We also attached spinnaker halyards one to the left and one to starboard to an eyebolt. Chainplates Revisited - Practical Sailor This type of rig is fitted with a runner at the mast top and a checkstay at the height of the inner forestay. Gerr and Toss both note that the lowers get more load than that and when there is more than one each should be capable of handling the full load. Maintain your standing rigging! The mysteries of sizing Dyneema standing rigging. The amount of rake optimal rake is usually provided by the designer so you can do this job with absolute precision. This is to avoid the unpleasant situation of having a hard time getting to re-attach one. I'm a little confused. Global Solo Challenge Copyright 2022. Maybe I was being a bit hyperbolic when i said that dude was 3x the amount of competitors. Once the sail was lowered and the retaining bolts were unscrewed, it was possible to raise the drum and access the forestay turnbuckle. For example, when setting the runners, it was noticeable that the working points of the control lines had moved by about 20cm. Elastic Stretch is much the same to work with as creep except that it will show up quite quickly, so a few re-tensions in the first few months should sort it. 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. 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. The best bet is to shop with your old rope in hand. 2.5mm 1x19 Stainless Steel Wire Standing Rigging Custom Build 3mm 1x19 Stainless Steel Wire Standing Rigging Custom Build 4mm 1x19 Stainless Steel Wire Standing Rigging Custom Build 5mm 1x19 Stainless Steel Wire Standing Rigging Custom Build 6mm 1x19 Stainless Steel Wire Standing Rigging Custom Build 7mm 1x19 Stainless Steel Wire Standing Rigging
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