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    • UnderDawg

      A Few Simple Rules   05/22/2017

      Sailing Anarchy is a very lightly moderated site. This is by design, to afford a more free atmosphere for discussion. There are plenty of sailing forums you can go to where swearing isn't allowed, confrontation is squelched and, and you can have a moderator finger-wag at you for your attitude. SA tries to avoid that and allow for more adult behavior without moderators editing your posts and whacking knuckles with rulers. We don't have a long list of published "thou shalt nots" either, and this is by design. Too many absolute rules paints us into too many corners. So check the Terms of Service - there IS language there about certain types of behavior that is not permitted. We interpret that lightly and permit a lot of latitude, but we DO reserve the right to take action when something is too extreme to tolerate (too racist, graphic, violent, misogynistic, etc.). Yes, that is subjective, but it allows us discretion. Avoiding a laundry list of rules allows for freedom; don't abuse it. However there ARE a few basic rules that will earn you a suspension, and apparently a brief refresher is in order. 1) Allegations of pedophilia - there is no tolerance for this. So if you make allegations, jokes, innuendo or suggestions about child molestation, child pornography, abuse or inappropriate behavior with minors etc. about someone on this board you will get a time out. This is pretty much automatic; this behavior can have real world effect and is not acceptable. Obviously the subject is not banned when discussion of it is apropos, e.g. talking about an item in the news for instance. But allegations or references directed at or about another poster is verboten. 2) Outing people - providing real world identifiable information about users on the forums who prefer to remain anonymous. Yes, some of us post with our real names - not a problem to use them. However many do NOT, and if you find out someone's name keep it to yourself, first or last. This also goes for other identifying information too - employer information etc. You don't need too many pieces of data to figure out who someone really is these days. Depending on severity you might get anything from a scolding to a suspension - so don't do it. I know it can be confusing sometimes for newcomers, as SA has been around almost twenty years and there are some people that throw their real names around and their current Display Name may not match the name they have out in the public. But if in doubt, you don't want to accidentally out some one so use caution, even if it's a personal friend of yours in real life. 3) Posting While Suspended - If you've earned a timeout (these are fairly rare and hard to get), please observe the suspension. If you create a new account (a "Sock Puppet") and return to the forums to post with it before your suspension is up you WILL get more time added to your original suspension and lose your Socks. This behavior may result a permanent ban, since it shows you have zero respect for the few rules we have and the moderating team that is tasked with supporting them. Check the Terms of Service you agreed to; they apply to the individual agreeing, not the account you created, so don't try to Sea Lawyer us if you get caught. Just don't do it. Those are the three that will almost certainly get you into some trouble. IF YOU SEE SOMEONE DO ONE OF THESE THINGS, please do the following: Refrain from quoting the offending text, it makes the thread cleanup a pain in the rear Press the Report button; it is by far the best way to notify Admins as we will get e-mails. Calling out for Admins in the middle of threads, sending us PM's, etc. - there is no guarantee we will get those in a timely fashion. There are multiple Moderators in multiple time zones around the world, and anyone one of us can handle the Report and all of us will be notified about it. But if you PM one Mod directly and he's off line, the problem will get dealt with much more slowly. Other behaviors that you might want to think twice before doing include: Intentionally disrupting threads and discussions repeatedly. Off topic/content free trolling in threads to disrupt dialog Stalking users around the forums with the intent to disrupt content and discussion Repeated posting of overly graphic or scatological porn content. There are plenty web sites for you to get your freak on, don't do it here. And a brief note to Newbies... No, we will not ban people or censor them for dropping F-bombs on you, using foul language, etc. so please don't report it when one of our members gives you a greeting you may find shocking. We do our best not to censor content here and playing swearword police is not in our job descriptions. Sailing Anarchy is more like a bar than a classroom, so handle it like you would meeting someone a little coarse - don't look for the teacher. Thanks.

sreiz

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About sreiz

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    On the shore of Lake Geneva, Switzerland
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    Multihulls and red wines
  1. Difficulties to adequately twist the mainsail and also to produce enough forestay tension. This is now resolved with hydraulics and dyneema with virtually no creep (DM20)
  2. Stefan Törnblom and I are discussing offering a new type of Aerorig on the T30 using hydraulic downhauls fore and aft. With modern high modulus textile and carbon materials this would certainly be a very interesting alternative to the rotating wingmast in particular. As a comparison, we have measured a maximal main sheeting load around 1600 Nm on the T30 with wing mast compared to 90 Nm maximal on the wing sail version when sailing close winded at 15 knots true wind speed and no reef in either sail.
  3. Seagul, Thanks for your question on the soft wing sail. This sail is still not ready to hit a larger market. The 7th generation this year comprises a number of simplifications, such as getting rid of the boom, removing parts of the elements in the camber system and taking the control lines to the outside of the wing to create more power than what was previously possible. We can now produce about 400 mm of displacement between the windward and leeward parts of the wing envelope which is about the maximum of what is required to produce sufficient power at open wind angles. Also, the nose of the wing can easily be pointed upwind. Close winded the wing tacks through 68-70 degrees at 12 knots true wind speed and at 8 knots of boat speed. Obviously, there is no conventional jib that can be used at such angles. VMG is approximately the same as tacking through 90 degrees with a jib at the same wind speed. The wing rotates around a 15 m high modulus spreaderless carbon mast weighing 52 kg, that can be canted 12 degrees to either side. Canting improves performance by 10-12%.
  4. Hi triple trouble. I'm the one responsible for the technical side of the T30 project whereas Hans Ahlinder is managing the commercial aspects. Here is some first hand information. T29 was the prototype, non folding version, of which two have been built. One of these has a conventional rotating carbon wing mast rig and sails in Brittany, France. The other, which is mine serves as a platform for development of a soft wing sail, now in its 7th generation, presented in Seahorse and also on sailinganarchy a year ago. The definite production version, which is folding horizontally without water stays, was named T30, first because it's 30 feet LOA, and second to distinguish it from the prototype T29. It has been sailed and raced extensively this year to test any potential weakness of the all carbon construction, weighing in at about 1350 kg total sailing weight including sails, engine, mattresses and warps, and before going into series production. The T30 is also different from the T29 in the deck construction and in having a toilet compartment. Also, the side hulls have been lowered about 50 mm and the boat widened by 20 cm compared to the T29. If you need any further information, contact me by email: reiz@analgesie.ch
  5. True, an exception to the larger dragonfly tris. You will also find older 800 and 25 with wing masts. I was referring to the 28, 960, 32, 1000 and 35 models.
  6. Trimarans that fold horizontally are more stable folded than those that fold vertically, perhaps with the exception of the Dragonfly 28 that has little volume in the side hulls and folds to 2.5 m, compared to the Seaon 96 and the Kiss T30 carbon (the production version of the T29), that fold horizontally to about 3.40 m. They enter a regular berth for a similarly sized modern monohull. In the T30, the large volume side hulls, when completely folded, are positioned 105 mm lower in the water compared to the unfolded position, thereby increasing stability. Quorning refuses to equip his trimarans with wing masts because of the risk of tipping over when folded, whereas wing profiles are standard on the Seaon and the T30. According to the manufacturers' instruction books, it is still recommended that their rigs are secured sideway with ropes to the dock in wind strengths above 40-50 knots to avoid being tangled up in the neighbours' rigs. This is certainly more a function of the sea state than of the risk to tip over.
  7. The heat stretching makes the dyneema more compact and therefore stronger. For the same diameter this procedure produces a rope that weighs more. We have tested different diameters and qualities of dynema from various manufacturers both spliced and unspliced and the average numbers as given by the manufacturers are correct with little standard deviation. As I said, for monohulls, creep is important, in contrast, for multihulls on which stays are lashed to textile chain plates, it has absolutely no importance. Usually, after splicing you load the stay to estimated static load which will set the splices. If you compare Marlow Max 90 with their DM 20 here are some numbers for 7 mm that we use for our trimaran standing rigging: Breaking strengths spliced (Max versus DM20) 8067 vs 6272 kg, stretch (mm/mm/1000kg): 00.0049 vs 00.0063. Creep is significantly less for DM 20 whereas stretch is greater so the difference on our forestay lenth is 2 vs 3 cm resulting in a change in the rake of 7 vs 10 mm. Completely insignificant for a tri where you can adjust length by re-lashing.
  8. Hampidjan is the producer of dux. On their web site that I posted in my previous comment you find their catalogue which contains the technical information on the DM20. It's breaking strength is clearly less than that of dux for the same diameter. If you are rigging a monohull it might be an idea to use the DM20, for a multihull with larger angles in the standing rigging and less tension in the rigging, and where you use lashing, you should go for the appropriate breaking strength, 2-3 times the maximal static load. What I know, the best breaking strength for diameter available on the market is the Marlow MAX90. It is a ton higher than that of dux for 7 mm.
  9. Go to www.hampidjan.is for technical information on DM20. The breaking strength is considerably lower than Max 90 and stretch significantly worse so you will end up with large diameter shrouds.