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    Drag and Lift coeffient

    Agreed 100%
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    Drag and Lift coeffient

    If you don't already have this (of course you may), by good fortune of timing Julian Bethwaite himself posted here regarding drag recently, and made mention of measurements he has made and published on the 49er. Particularly with hull drag, with the reported data you could do a curve fit and...
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    Oracle AC72

    Positively the lift from the foils, at any but the lowest speeds, does reduce hull drag. Whether largely counteracting their own drag, fully counteracting, or providing positive benefit to drag will depend on speed. What the crossover speed would be, or the range where there is little...
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    Banshee Dinghy Makeover

    Looks like really nice work and a very fine boat now, thank you for posting!
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    Oracle AC72

    I'm not sure on the exact number, but that is more or less the weight: http://www.cupinfo.c...s-ac72-ac45.php But 4 times the weight, for over 1.63 times the length, is actually a bit lighter "for the length." If scaled to the cube (not that it must be precisely to this), you'd expect 4.3...
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    How NOT to anchor your sailboat in a hurricane

    Friend, I understand that as with so many overseas, you think you know all about America, just like the back of your own hand thought you are more than 10,000 miles away, and your commentary on things in America is therefore just as valid as anyone's and everyone should pay attention to it and...
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    The mysterious case of the missing threads

    Perhaps the cut-and-paste problem depends on the browser? Any blocking of cut-and-paste would be rather ironic as such seems to be a key "writing" aid for Nicole. A considerable of what is under her name and presented as her writing is, from some strange coincidence, absolutely word-for-word...
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    Italian cruise ship tragedy

    Apparently ( http://maritime.abou...onnage1969.html ) the definition is:
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    The mysterious case of the missing threads

    That article is a puzzler. For some reason, when I do a Google search on various phrases in it, I find them to be dead-exact duplicates of other, unattributed work. Uncanny coincidence. http://respectu.com/anti-bullying_programs_sports.php http://www.squidoo.com/adult-cyber-bullying...
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    Seeing Personal Messages in new layout

    I really hope and very much ask that this feature be de-activated. Just now, in the course of messaging a fellow member here, I inadvertently mouse-overed his name and immediately saw a very personal message. No, there was no harm done but it felt like an invasion of privacy. In a way, it was...
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    Infinity 36 DSS flying!

    The rudeness apparently never ends from the corner in question. Regardless, nowhere does the above deal with effects of a sea state, and it's hardly obvious that that would be negligible. For example, eyewitness account of a DSS boat reports it crashing on going down waves and being "a bit...
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    Aegean Debris Found

    From this source, not all four, but one: http://www.ocregister.com/articles/sailors-366681-beach-marijuana.html
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    Italian cruise ship tragedy

    How can the value simultaneously be in tonnes and be unitless?
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    Infinity 36 DSS flying!

    Yes Hugh, all who have technical questions about DSS, such as triciarob's questions on this specific boat's righting moment curve and amount contributed by DSS, or my question on lift/drag in a sea state of your choice, are best dodged and then followed with insults about how the persons lack...
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    Infinity 36 DSS flying!

    Previously I was not sure, perhaps it was not deliberate, but now it is clear that this is very deliberately your approach. You have clarified where you are coming from exactly. I now understand you as a person and as a yacht designer / promoter better. Clarity is always better and at least for...
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    Infinity 36 DSS flying!

    Mr Welbourne, some of your replies are surprising to me, and certainly seem less than informative and less than helpful to questions which seem pretty reasonable ones. There seems no way that from the information provided thus far on the Infiniti that a person could calculate the GZ curve or...
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    Infinity 36 DSS flying!

    Now, now, Doug's snake oil is only very, very little used. He sailed his foiler for something like 3 hours then gave up on it, if I recall correctly. But his new efforts are on schedule for possible completion by the year 2525.
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    CATARI/PACIFIC SEACRAFT BUILD

    The browser situation, to me, seems ridiculous. As with I think most people, my computer works fine and will continue to work fine until that point where people screw with software enough that various things don't run with the older operating system anymore -- Flash player, Acrobat, whatever --...
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    CATARI/PACIFIC SEACRAFT BUILD

    Wondering if the new changes to the forum got rid of that feature, so trying a new post. Will it have Edit? Will know in about 5 seconds. EDIT: It does have it. However as Kim said, at least in the past the option would remain for only a limited time after a post. Maybe the time has been...




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