At the same time, by vertical compression of the mast, tensioning the backstay causes a bending of the mast that flattens the main. Remove any pins from your terminal ends before taking measurements. We had created a perfectly straight mast track, an adequate rake and a pre-bend. Replacing Your Rigging | Cruising World There is nothing more expensive than a cheap boat! Having worked and checked with runners and checks the sea trial was more for the pleasure of ending the day with some sailing. We have chosen a Class40, a sister-ship of the boat with which I competed in the Global Ocean Race 2011/2012. The second is a calculation based on the current rigging size. This is mostly a problem if you only use turnbuckles due to their limited range. With the D2s completeley loose, the D1s were obviously too soft too. a toggle fork at the bottom end. Check your spreaders, chainplates and turnbuckles for cracking, fatigue, missing cotter pins/rings, etc. So, I resorted to trusting my sensorial memory. 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. With the boat in the water and not wanting to take any risk, we didnt want to get to unhook any turnbuckle. Certainly distributing the tension between runner and checkstay greatly reduces the load of the standing rigging. Global Solo Challenge Copyright 2022. directly with the yard of your choice. So the rake is controlled by adjusting the stay length and the V1s. These guidelines are particularly useful when estimating the cost of a project. The Lift-All Sling/Leg Length Calculator has been designed to assist you in selecting the appropriate size slings for your lifting applications. Maybe I was being a bit hyperbolic when i said that dude was 3x the amount of competitors. Question: My halyard is binding. That is, the turnbuckles had not been hooked and tightened at the same simultaneously on lower and upper thread. One of the most frequently asked questions we hear is: How do I measure my sailboat standing rigging? Let us go over your rig from top to bottom and end to end to identify trouble before it gets worse. Dynice Dux or SK75 - RIGWORKS INC. Runners and checkstays are not structural, therefore are not to be considered part of the standing rigging per se, the mast does not need them to stay up. There is no one-size-fits-all with running rigging. First we wanted to take care of putting the mast straight and solve the problem of its excessive rake. The most popular choice is the Stalok version (top) which utilises a chrome-plated, forged bronze body. PS Advisor: Rig Loads and Reefing Lines - Practical Sailor There isnt even a topping lift to support the boom when reefing. 20% is 576kg so if we size at the 10% we get 5760kg (we can simplify the calculation to looking for a Dyneema line that is at least twice the breaking limit of the stainless it replaces). 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. However, in long race, especially single-handed, offshore, it has some human contraindications. Stainless steel isnot a malleable metal, so the pressure applied by the roller dies is exceptionally high, creating a solid bar of material. 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. Good question. Type in the parameters 2. Tapped and Formed:Some Swage and Swageless terminals are made of several components.These partsmay be tapped together like the strap toggles below. As we were stationary in port and without sails, I could totally ignore the D2s until the end. A DIY Solution to Tired Standing Rigging - Sail Magazine Of course, a number of factors affect a rigs lifespan including load, sailing conditions, mileage sailed, age, fatigue from cyclic loading, environmental influences such as salinity and contamination, and frequency of care and maintenance. The experience was refreshing to learn with a degree of mathematical certainty what would be a safe decision rather than relying on the often contradictory opinions that we regularly face. Assuming it fits in our racks and we have room, we may be able to avoid mast lay day charges by storing your mast here at Rigworks. Stretch the wire straight and ensure there are no bends in the wire. 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.). We took then tightened the forestay by the same two full turns on the turnbuckle. Generating 3D hull using only picture of boat. Most lines are pre-stretched. To calculate the load on a particular sling leg proceed as follows: Take the total weight of the load and divide this by the number of legs supporting the load. Excuse me the question, stays should be placed in a "free-standing mast"?. We forego some fine tuning for safety offshore. Our preferences are going to be to tune the rig for a bit higher performance and sail a bit harder than they do but it is still be best source of information we have found. 119 316 grade stainless steel Wire Rope (1 group of 19 wires, very stiff with low stretch) is standard on most sailboats. And they often find badly damaged Read more, Question: When your riggers talk about standing rigging, they often use terms I dont recognize. That's a little high because it's using the combined capacity of the lowers and reality will have them loaded differently. I.e. Of course what we have not been able to compare fully is the performance of Marlow vs Liros in heat treatment, pre-stretch and coatings. After this introduction, lets move on to a practical case. 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). 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). Then it made a bend to the right and then back to the left between the second set of spreaders to the masthead. I think that's the real problem to solve. By now, I would say, even on cruising boats it is one of the most common rig arrangements. 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. The IMS data shows a righting moment at 25 degrees of heel as 716 lbs/degree or 17,900 lbs. 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. For safety and peace of mind, however, sailboat chainplates require attention and possibly upgrading. 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. On this boat only the V1s on deck are adjustable, the rest of the shroud is of fixed length. 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. The only downside to Dynice DUX is that it is quite stiff when new, and will take a few days of sailing to soften up. I jibed without runners in 50 knots of wind and nothing happened. Can you break it down for me? The Hamma Spoon and Petersen Shroud terminals are designed as direct replacements for the discontinued Navtec T-terminal.
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