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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.

Ben G

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    12' skiffs
  1. I've only see one sailing from a distance on a windy day, and it looked pretty placid in decent wind (like the photos posted). Kite I saw was a very conservative small fractional asso.
  2. Maybe it had a touch too much weather helm so they're going easy on the mizzen Or they're trying for a little self steer to go easy on the autopilot
  3. Like this thing. First seen on South Park?
  4. Sorry I wasn't clear, I was referring to the foils. Pumping the foils may be more effective than pumping sails if you have an accumulator to store the energy lost on the return cycle, as a spring would. Cyclists only need to supply the energy lost per pump cycle as opposed to the wing, which is a total loss system with no accumulator
  5. Interesting stuff. A couple of thoughts.. when I've been riding, going from full power to stopped isn't always a pleasant feeling, whereas spinning the pedals at no load helps keep your legs warm and the lactic acid moving along. Also, a quick (very rough) calculation, based on the power output table above.. if each cyclist can momentarily put out 1200w (20w/kg @ 80kg), x4 = 5000W (5kW) The mass of the boat say 2500kg + 500kg wing + 500kg crew = 3500kg = 34300N Power = force x velocity => Velocity = Power/Force = 5000/34300 = approx. 0.15m/sec. So they have the power to lift the boat vertically at 0.15m/sec. Not fast, but interesting nevertheless as in combination with an accumulator etc. it could be enough energy to affect the hull kinetics and bounce it up or some such, a co-ordinated movement with the wing, or good dynamics to provide that little extra during a roll tack. For example, if a tack takes 1 second, 5kW input means you could theoretically be 0.15cm higher on the exit of the tack (assuming you've worked out a way of physically doing this )
  6. I often board my skiff legs first.. grasp a rope or trap ring, legs up over and in, then body in.. arms are already tired from racing but your legs are very strong at holding on. I'd choose a tether anyday.
  7. I've used 3D printing to make some cool little fittings. A great option is white 'strong and flexible' material (Sintered Nylon) from Shapeways.com. Pretty cheap. The parts I've used I have brushed epoxy into the surface to strengthen. I have made some parts that are hollow and thin wall, which I use as tiny formers to laminate carbon fibre over (and therefore avoid yukky stainless steel bolts) And other parts I have printed with grooves and holes around the part, where I have wrapped and threaded carbon fibre tow as reinforcement, sometimes using the plastic as a sliding surface. Both have had successful outcomes. It is very tedious and slow, a long way from a production 'process', but a good way to make cool, complicated lightweight parts.
  8. What kind of terminations are you using and how to attach? Photos would be nice I've seen three main themes: 1/ Thimble (or shackle) with Tow wrapped around it and laminated to the rod in the appropriate way. 7-9 strands of 12k (?) tow. Taper all joins and wrap the last tow in a way to prevent peel stresses. Sailmakers thimbles are probably the best. Stainless fitting (thimble) needs to be strong. Will rust over time. 2/ Glue tapered CF Plate tab onto the end of the rod. Slot is cut the right width to receive the rod. Slot is long enough and plate tapered sufficiently to limit peel + shear stresses. Need to keep line of action of force along Centreline of rod 3/ PBO or unwaxed dyneema or vectran braid - make an eye splice of sorts and slide over the end of the rod. Taper the end of the rod to limit shear stress in the bond. One issue with using a Loos gauge on the carbon rod is that it will impose a high interlaminar shear stress in the stay between the pins and can create a split along the middle of the stay. Hasn't happened to me but I've been warned of it
  9. and another
  10. Like what the actual fux goes on up there anyway!
  11. I've tried the loos gauge on carbon and just roughly matched the previous loos numbers from the wire setup. Understand the calibration issue. The bigger question is, what is the actual need to calibrate anyway? The carbon is stiffer than wire and the rig and hull behave differently. The mast and hull may deflect more than the wire. One suggestion (assume you have a wire forestay for a moment) is to maintain a given forestay tension number and setup for that. Adjust sidestays / lowers to achieve bend targets etc.
  12. Who would go to sea with someone who can't work out how to get the boat, to the sea? Leaving the trailer off is surely a master stroke in saving the lives of stupid people
  13. very good! it's a cherub right? Why not show it a picture of an 12ft skiff fully airborne? Try this first From the age of the OP I assume its been and gone now.. But I have done just this on my 12' skiff mast, not wildly different to a chubby mast, and its working better than ever. Unis ~30mm wide front / rear start with 4 layers at the base, then divide the tip (ie above the hounds) into thirds. Drop the first layer below the hounds at 4/3, then drop a layer at each station after that. If there's a stiff spot due to a sleeve, you could drop a layer early. Try and find Intermediate or high modulus carbon if you can.. I used 150 gsm IM carbon and vac bagged it. Wet layup SM carbon will make your mast so heavy yet still soft you'll want to grind it all off again. It's surprising how much you need to make a difference. I think carbon track is the bomb.. although not everyone agrees.
  14. Holy smokes what's that you have!! Now you need a rear wing and some slick tyres on the front to make a formula car!
  15. Is it an M-class from NZ? http://rayc.co.nz/mclass/