I agree with you Casey. Just make sure you have a lot of backing in the area. I used heavy marine plywood, then a lot of 5200 (tough stuff itself) and a steel plate bolted through to the hardware.
If you have not checked it see http://www.jordanseriesdrogue.com/ Ed Ed Kelly (& Sue Kelly) USSV Angel Louise - a Catalac catamaran Our Skype Phone (202) 657-6357 Email: EdKelly ("at" symbol) netins.net On Aug 19, 2008, at 11:23 AM, casey koogler wrote: Ed, This makes total sense in that a sailboat is designed to be pushed from the rearward. The mast being supported from both sides to the rear and one from the bow. The pointy end for cutting through waves the flat end for lift. I am picturing a bow bridle being an eye bolt just above the waterline a few feet aft of the bow to be preferable to a single eye bolt on the bow. Fasinating stuff from Jordon. Casey --- On Tue, 8/19/08, Ed Kelly <[EMAIL PROTECTED]> wrote: > From: Ed Kelly <[EMAIL PROTECTED]> > Subject: [Liveaboard] Storm Anchors > To: [email protected] > Date: Tuesday, August 19, 2008, 4:36 AM > One of comments on the storm anchors thread was: > > " It will be much easier on the boat to keep the > pointy end into the > wind." > > I disagree. I would use of stern (the blunt end) in a > survival storm. > > The work of Don Jordan (an aeronautical engineer now in his > 90s) > found more boats lost in hurricane anchorages would be > saved if > they had been anchored from the stern of the vessel. > > According to his research most sail boats will 'sail at > anchor' far less > if the wind strikes them from the stern than the bow. Due > to design > requirements, if a boat's mast is not providing the > center of > movement forward of the the midpoint, the boat will not > steer > well. But when at anchor in a strong enough wind, the same > mast, > contributes to the boats instability. It may not be as > evident at > small velocity winds, but at hurricane force, it will whip > one way > then the other. Its why some boats put up 'riding > sails' at the stern. > > The stronger the wind the more lift it produces to induce > more sailing > when anchored from the bow. The more lift, the more chafe. > > However anchoring from the stern in hurricane winds > introduces a straight line drag, from the mast being > downwind, and the boat laying straight eliminates many > chafe issues that cause boats to be lost when lines part. > > There are those who worry about the boat being pooped > during > a 'rear anchoring' but research shows there is more > lift at the > stern than at the bow of boats, and where you see a bow > dipping > low into the water and then pitching high, the stern will > float > with less movement and pitching due to its greater lift. > > I have put in steel plates at the stern corners of our > catamaran > that will take any strain and support a yoke. If I still > sailed my > 35 foot monohull I think the corner cleats would be > sufficient > to make a yoke (twice the beam of the boat) from which to > use a stern anchor. > > I will also use a heavy kellet on the rode for the anchor > (in our > case we use the heaviest mushroom anchor we could find). > > also..... > An insurance surveyor investigator years ago told me he had > observed that bow eye anchored boats with 'bow > eyes' tended to > be less frequently lost in severe storms than boats with > lines > led from the deck -- which I believe is attributable to > less chafe > and a lower target for wind when it swings at anchor. (it > also > obviously has a higher scope this way). > > Ed > > > > Ed Kelly (& Sue Kelly) > USSV Angel Louise - a Catalac catamaran now lying Kittery, > Maine > shortly to go South when the hurricane season is over. > Our Skype Phone (202) 657-6357 > Email: EdKelly ("at" symbol) netins.net > > > > _______________________________________________ > Liveaboard mailing list > [email protected] > To adjust your membership settings over the web > http://www.liveaboardnow.org/mailman/listinfo/liveaboard > To subscribe send an email to > [EMAIL PROTECTED] > > To unsubscribe send an email to > [EMAIL PROTECTED] > The archives are at > http://www.liveaboardnow.org/pipermail/liveaboard/ > > To search the archives > http://www.mail-archive.com/[email protected] > > The Mailman Users Guide can be found here > http://www.gnu.org/software/mailman/mailman-member/index.html _______________________________________________ Liveaboard mailing list [email protected] To adjust your membership settings over the web http:// www.liveaboardnow.org/mailman/listinfo/liveaboard To subscribe send an email to [EMAIL PROTECTED] To unsubscribe send an email to [EMAIL PROTECTED] The archives are at http://www.liveaboardnow.org/pipermail/liveaboard/ To search the archives http://www.mail-archive.com/ [email protected] The Mailman Users Guide can be found here http://www.gnu.org/software/ mailman/mailman-member/index.html _______________________________________________ Liveaboard mailing list [email protected] To adjust your membership settings over the web http://www.liveaboardnow.org/mailman/listinfo/liveaboard To subscribe send an email to [EMAIL PROTECTED] To unsubscribe send an email to [EMAIL PROTECTED] The archives are at http://www.liveaboardnow.org/pipermail/liveaboard/ To search the archives http://www.mail-archive.com/[email protected] The Mailman Users Guide can be found here http://www.gnu.org/software/mailman/mailman-member/index.html
