• Announcements

    • 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.

t.rex

Members
  • Content count

    82
  • Joined

  • Last visited

About t.rex

  • Rank
    Anarchist
  • Birthday 11/28/1951

Contact Methods

  • ICQ
    0

Profile Information

  • Location
    sum over histories
  • Interests
    paragliding sailing hiking reading - not guns
  1. Chafe is like rust ... it never sleeps.
  2. Hi Dave and Steve, First of all, my compliments for combining the major breakthroughs in sailboat design and construction for the last 150 years in a unique and new vision. From you two, we don't expect less. I couldn't help but notice that the dimensions of the UFO are roughly that of an inflatable dinghy. The volume is less (catamaran) and the weight is much less. So I have a few questions regarding the possibility of using the boat as a tender. 1) Is it unsinkable? 2) Does it tow well (and where do you attach the tow lines)? 3) Can you stand up and paddle (SUP)? 4) Can you row it? 5) Will it make it to shore in calm water with 2 FABs? 6) the $64 question ... an outboard? X) I don't care what it rates. P.S. I couldn't easily find the dimensions; LOA? Beam? mark
  3. I will make Dee Smith Great Again !
  4. Hi Jody, Nice looking bulb. How does the upside down chine (and what looks like hollow but I could be wrong) help with vortex suppression?
  5. Hi Austin, It's a good question, I'll try and make a dumb answer from the laboratory rats cage. Things that travel through the air (or any fluid) create resistance called drag. A shoebox thrown horizontally will slow down because of the viscous drag of the air molecules over its suface. How much drag it creates depends on the velocity, frontal area, and surface roughness. This is usually called viscous or parasitic drag. Things that actually fly have to create lift. Wings create lift with low pressure on the top surface (about 80% of the force) and high pressure on the bottom (remaining 20%). Because of the difference in pressure, the air molecules move from the bottom surface to the top surface at the wingtips creating a vortex. The force needed to create this vortex is described as a lift-inducing drag or induced drag. The winglets don't really change the top or bottom surface pressures, they help to slow the movement of the air molecules from the bottom to the top of the wing reducing induced drag. As a side note, an aircraft is at its most efficient when the parasitic drag and induced drag are equal. Where were we?
  6. Bob... Bob... Bob, Over the years, I have abused my keyboard sufficiently by spewing coffee with laughter, sneezing, coughing, pounding and general ape-like (primate) social behavior. Today, for the first time, I actually caught myself drooling on the keyboard. You simply must give us some warning before posting boat porn like this. Could you give us your thoughts on the usefulness or futility of the boomkin? I have always thought it's kind of delicate for such a critical role. Mark
  7. Looks a bit like NZ's Navy. Must be a BIG tide fall in that location as the canal mooring posts are steeply angled - to let the boats ride up with the tide? Or is there another plausible explanation? If I'm reading the 'targa' correctly the LV indicates the boats are registered in the 'Laguna di Venezia'. Actually the tidal range in Venezia is not that much, usually under a meter. What happens fairly often in the winter is that the Atlantic storm systems bring a lot of rain which floods the rivers and the strong southerly wind piles up the Adriatic Sea in the northern corner. The result is called 'acqua alta'. The poles are used to guide the boats back into the canals otherwise you'd always have boats sitting on the sidewalks, the bigger the boat the bigger the poles.
  8. I'll take it ! I'LL TAKE IT ! !
  9. So do I win the fifth boat ? (I'd settle for a crew T-shirt and a ride aboard)
  10. Bob, The wooden parts look like a pattern to make a mold for a carbon fiber fiddle for the bobstay. But, "I could be wrong" too. mark
  11. Boomer; Wonderful photography and great eye-candy. Keep it coming! Bob; I think that Jim Betts has come up with a very elegant solution for the stanchions. The stainless steel stanchion never really comes into contact with the carbon fiber socket (and the socket will never fill with water). Examining the pulpit photo, I noticed that the welded stainless steel flanges are apparently (through)-bolted to the carbon fiber bowsprit. So what is the strategy to isolate the stainless steel flanges and bolts from the carbon fiber here? Thanks, it's a great thread, mark
  12. Glacier transported rocks. We don't need no stinkin' feelers.
  13. One more gybe and it's done. Pretty impressive shaving off more than a day from the previous record.
  14. Phew, I read through the whole thread before opening my big mouth, then decided that it would be better to read through it again taking notes. So I did. First of all, I would like to express my appreciation to Bob P, Raspers, WHL, Betts Boats (ALL of you), Jim and Neil for an open and honest insight into the world of state-of-the-art yacht builds. The boat is gorgeous beyond words. I was unaware of this paradigm shift in monohull sailboat construction until now. All of the forces that were transferred to the hull using metal fasteners (wooden boat technology), are now transmitted to incorporated structures in a monocoque hull laminate. No more leaky-pulled chainplates, no more loose-broken keel bolts, no more rust! These are not small details. My 2 cents ... Interior layout Spot on offshore layout (rev.O #3273), couldn't be better. Sleeps 4 people securely in a seaway and 8 people out of the rain on a hard party weekend. Raspers 3D rendering (#2421-2 +others) really makes it feel like I've visited the boat instead of just squinting over the design. Sail plan I noticed you're not finding peace with the placement of the radar at the first spreader (rev.J #3291)(rev.M #3493). Let me tell you a boxer's story about a new jib and a mast-mounted radar. Every time the boat tacks the radar gives a jab to the jib. After a year, the owner brings me the jib to put a patch on the uv-strip. A year later, the owner brings me the jib to put a patch on the patch. In the third year, the radar punches a hole through the sailcloth. But low and behold, the leech cord, which is made of kevlar, puts the radar in a headlock and the owner, with the aid of an electric winch, grinds the radar right off the mast. Jib wins by knockout. Although I know you don't like it (damn - can't find #post), get the radar off the mast and onto a pole mount in the stern, the backstay or some trick hydraulic thingy. Keep the front of the mast clean as a whistle with the foredeck lights under the spreaders. And while we're protecting things, no press rings or D-T-rings in the clews of any jibs, just webbing. This summer, I saw a 20 meter carbon mast that had been battered with both fists by a T-ring clewed self-tacking jib; then 'protected' by a polished stainless steel cover attached with aluminum rivets: the horror... Three foresails should be sufficient. I really like the designed lower aspect staysail on hanks (rev.M #3493). I would suggest a roller furling low-clewed masthead genoa with a good amount of leech hollow designed to pass by the shrouds just lower than the upper spreader. Why low-clewed? Because for the same area, it heels the boat less and interferes less with the mainsail. Leech hollow is good because the sail flattens as you pull in the sheet and less leech-cord tension is needed to stop flapping. As you often want as much area as you can get, the lightwind/downwind sail is a free-flying Code 0 on a furler as big as will fit from the exit at the octagonal end of the bowsprit to the transom (backstay laminate?). Given the luff length, I like the designed mainsail with reefs placed slightly lower than the 5 full-length battens, taking into account the car heights, as successive reefs are pulled in. An external track, with 1 intermediate car between battens is good. I've seen the double mast-gate-switch track (#2489) on a swan 90; makes sense there because the cars are big (read tall) and the're lots of them; not so convinced here. Park Avenue style boom with an open top (#2489) is nice as it practically folds the mainsail as you lower it. Deck layout In post #2563 you mention 4 electric winches; big drain. I am in favor of at least one electric winch usable by the mainsail halyard and a spinnaker halyard, not so much to hoist the sails as for mast work, hoisting the tender on deck or MOB. After all, trimming the sails is (a big) part of the fun. Is the cap rail strong enough to take the sheet loads of the jibs? If so, you could get rid of the genoa track altogether (no tracks, no holes no fasteners). Questions 1) I am really curious, how are you going to construct the forestay-tang-laminate-gizmo to the hull and (through?) the bowsprit? 2) In the Adventure 40 thread, you posted (#35): "My inclination for an offshore cruising boat is to make the keel long enough in chord to allow the boat to be hauled and rest on the keel. ... You can never count on up to date haulout facilities in remote areas." In this Bulletproof 43 thread you mentioned (#2875) a hypothetical 43 footer at 26000 lbs instead of 36000 lbs. Using the keel shell construction, CF over e-glass, described from post #1282 on, how long would the keel chord have to be for our 26000 lbs. to rest on the keel? Really what I'm asking is: can this keel shell constuction be done for a fin keel? And finally, given the constant theme of music throughout this thread, I would propose the names for this quartet: Violin, Viola, Cello, Piano. Happy New Year, mark
  15. From the online MIT Technology Review: http://www.technologyreview.com/news/409710/whale-inspired-wind-turbines/ "Previous experiments have shown, however, that the angle of attack of a humpback-whale flipper can be up to 40 percent steeper than that of a smooth flipper before stall occurs."