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      Abbreviated rules   07/28/2017

      Underdawg did an excellent job of explaining the rules.  Here's the simplified version: Don't insinuate Pedo.  Warning and or timeout for a first offense.  PermaFlick for any subsequent offenses Don't out members.  See above for penalties.  Caveat:  if you have ever used your own real name or personal information here on the forums since, like, ever - it doesn't count and you are fair game. If you see spam posts, report it to the mods.  We do not hang out in every thread 24/7 If you see any of the above, report it to the mods by hitting the Report button in the offending post.   We do not take action for foul language, off-subject content, or abusive behavior unless it escalates to persistent stalking.  There may be times that we might warn someone or flick someone for something particularly egregious.  There is no standard, we will know it when we see it.  If you continually report things that do not fall into rules #1 or 2 above, you may very well get a timeout yourself for annoying the Mods with repeated whining.  Use your best judgement. Warnings, timeouts, suspensions and flicks are arbitrary and capricious.  Deal with it.  Welcome to anarchy.   If you are a newbie, there are unwritten rules to adhere to.  They will be explained to you soon enough.  


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About Diarmuid

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    Laramie, WY, USA

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  1. Google & Babel Yacht Brokers

    Empty bowl = tragedy. Basic dog math.
  2. Google & Babel Yacht Brokers

    + bowlbite
  3. Snoop Trawler PNW

    Cap'n Dogg invites you to hang on the good ship Snoopster: Snacks by Martha:
  4. Paris (Kiwi Spirit) calls it quits

    He's decided he doesn't need to read the manuals & has paid other people to do that for him. Mr. Paris does not present as someone who approaches a broken freezer armed with a multimeter and the Ideal Gas Law. So he needs to RTFM. Heuristic thinkers can't outsource that task or say, "I'll figure it out later." Cuz that's not how they succeed. They read, they drill, they practice, they methodically work thru possible scenarios, they spend hours in simulators. They take apart the furler and put it back together in a cold shower with the lights off. Three times, until it is automatic. If that's too daunting, ruthlessly simplify the boat so its stack of manuals isn't two feet tall. The ability to generalize to particulars is nice because it's the mental equivalent of a carry-on briefcase & slides easily under the seat. If your whole world is particulars, and if your boat is complicated, ya gotta pack the rulebooks.
  5. Paris (Kiwi Spirit) calls it quits

    I believe that was the original Paleo diet.
  6. Paris (Kiwi Spirit) calls it quits

    Difference between 'conceptual' and 'heuristic' thinking. Both have their place, and most people operate somewhere between the two poles. Conceptual learners want to understand the basic forces & principles of a system, then figure out how to get from cause A to effect B via manipulating variables. Heuristic thinkers learn rules and algorithms: If A happens, then do task B. They can memorize quite long lists of rules, or diagrams, or names of components. When you need someone to act quickly in an emergency, or under tremendous stress or fatigue, a heuristic thinker can be a godsend. They don't have to start at F=ma and work their way up to "Flaps down, cut power to engine #2" cuz that's what the manual says to do and that's how they learned it in class. Lots of military officers are brilliant heuristic thinkers. The approach generates reliable, uniform outcomes based on prior real-world experience. Downsides: if a problem ain't on the list, can't derive a novel solution. Tend to hit a skills plateau and stall there -- often because there are no more lists to memorize. May believe great success in one field (like physical medicine) will transfer to another field (like RTW sailing). My cousin taught me to sail via a small-but-decent set of rules, which he got from an older guy, who got them from an older guy, etc. Doubt there was a single person in that lineage who understood a thing about fluid dynamics or force vectors. I needed to know why sails generate lift, and why a rudder stalls, and why spar loads are mostly compressive. Some very, very good sailors went all around the world never knowing or caring what made their boat actually go. But they damned well knew how to make it go, far better than I do: "If there's chop in the channel, move your jib cars back. That's what I was taught, and experience confirms."
  7. For Alex Thomson's next stunt video, he will iron and press a suit jacket and trousers on the windward foil whilst sailing at a radical angle of heel. Then finish third in some sailboat race.
  8. I'm making a rudder

    For a non-tapered blade carrying the foil profile its full length, I'd likely opt for the tablesaw/dado stack method described by Daddle -- flipping the workpiece end-for-end each pass to minimize deformation from internal stress. (Which I would expect to be less of an issue in a glueup than in single or edge-glued planks, but it is a possibility. Good on Daddle for knowing that obscure bit of lore!) Besides, flipping lets you make two matching cuts for each blade height setting.) Plow, flip, plow, move fence, raise blade height to layout line, increase tilt one degree, repeat. Leave a 3/8" or so strip on the trailing edge (I have a left-tilt cabinet saw & would run the trailing edge against the fence; right tilters might want to run the leading edge). That strip could be sacrificial (zipped off on the bandsaw) or shaved down to complete your profile. For the later plow cuts, which may involve removing 1" or more of material depth per side, multiple passes will be needed -- even on a big saw with a good dado stack. FWIW, I used to mill quite complex crown molding profiles on a TS this way; finally gave in & bought a 3hp shaper, power feeder, and a cutterhead that takes custom HSS inserts. Now it's one pass and done. And remember, the workpiece wants to surf up and over a blind dado stack. Not much downforce. Slow your feed! The tablesaw fails to work well on stopped cuts, when the foil shape does not continue all the way to the top of your rudder or daggerboard. It's a lazy trick I do occasionally on the PM66, which is very heavy and accurate and has a fence like a steel I-beam, but holy hell is it dangerous. Would not consider plunge cutting deep grooves on a TS with a dado stack, nope nope nope. That's a "take the tool to the workpiece" sort of job.
  9. I'm making a rudder

    There's a family of cutter called bowl&tray routing bits that would be pretty good for this task: they have the softer corners of a round nose ('core box') bit but leave a flat bottom. The better versions include a modest upshear. They'll plunge cut, but they aren't happy about it. The radiused parts of the bit tend to gum up and need periodic cleaning.
  10. I'm making a rudder

    Kewl. I'll take a hard look at that ProSet foam. Its numbers are close to 16# expanding PU, but with over twice the shear. The main reasons to choose 16# PU over 8# is to get the shear strength high enuf, and because our barny-doory rudder will tend to rise if too light. A few comparables: CC has better shear modulus, as well (which Ahab notes is important). I casually tested some nominal 8# PU alongside 5# CoreCell and was impressed enuf: a bit less crushing resistance, but also less water absorption for the PU. Samples lived at the bottom of a 5 gal bucket for a month, and the shop-made PU came out with zero weight gain.
  11. I'm making a rudder

    It'll be fine. The whole point of sheathed composite is the whole is much stronger that the parts. For comparison, Corecell A500 has compressive strength of 146psi, shear strength of 165psi, and tensile of 229psi (modulii much higher). You'd probably want more glass thickness on foam than on timber, but your core will carry more of the load. Heavier than glass-over-foam, but a too-light rudder tends to float on ya. Thanks for this thread, as we also will soon be building a rudder. I've considered a wood core, but one thing I worry about is water infiltration. A daggerboard is one thing, but rudders seem inevitably to leak where the shaft enters the blade. What's your strategy for preventing that? Cuz one thing about solid wood: when it gets wet, it swells -- and the hydraulic forces involved can split granite boulders. (Our current plan is pour-your-own foam cores , probably 16lb/cuft urethane, with biaxial glass over that and a scheme of G-Flex epoxy and 5200 at the stock entrance to keep the water out. We molded our own core foam for some cockpit hatches & it worked well, though you need to scuff up the faces to get good epoxy adhesion.)
  12. Anyone used Kiwigrip and removed it?

    Even better, store the leftovers in glass jars. Used 16oz salsa or Ragu jars are excellent. You can put a shot of propane or CO2 in before sealing, or float a bit of Saran Wrap on the paint before screwing down the lid. I have a couple jars of KG saved for touchups; seven years later, it's still in good nick.:)
  13. Cruising a two tonner

    Good optics: dispense with formality.
  14. Craigslist - Not mocking

    Boat Angel is purely a broker: they never see nor inspect nor arrange delivery of a vessel, and they cannot and will not vouch for any description or listing. "As-Is, Where-Is" is their motto. The people answering the phones don't even know the first thing about boats; and the whole purpose of the auction price (which usually begins at zero, with no reserve) is to move the donated goods as quickly as possible. They really don't even care what a boat ultimately sells for, because they have zero outlay to recoup. Donors are given a very basic questionnaire about ownership status & condition, & they are asked if the boat has any outstanding debts or liens against it. The auction money goes toward paying the head of the charity and his family members a comfortable salary, and toward making animated films set in the Christian neighborhood of Uncanny Valley. Chief got himself into a bit of IRS trouble ... until he succeeded in retroactively becoming a church. I'm not slagging the business model: we bought our Albin Ballad thru a BA auction on eBay, and we're perfectly happy with the process and the result. Bidders need high risk tolerance and comfort with unknowns; we had that. Once you've won the auction, BA puts you in touch with the donors, and you can ask more pointed questions, like "How much oil is in the bilge, approximately?" That contact allowed us to trade a SS fluke anchor (which the owners regretted) for all the legal documentation they still held. It was fine.
  15. Polishing stainless welds

    Our farmer is not welding on yachts, nor to yacht standards. The videos is a demonstration of an electrolytic weld-cleaning method. If his 'horrid welds' offend you, maybe these are better? Tho sailors being sailors, I'm sure someone will find fault. "Should have used round tubing, man. No place for rectangular profiles on a boat."