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On Oct 27, 2:47 am, Bob wrote:
On Oct 26, 6:32 am, Skip Gundlach wrote: October 26 - What A Drag! Skip Dear Skip.................................. Please supply the following data; 1) what is the weight of your boat? 2) How much DRAG (pull on your ground tackle) does your boat create in the following winds 15 knots _________ pounds 30 knots _________ pounds 42 knots _________ pounds 60 knots_________ pounds What is the SAFE WORKING LOAD of your chain AND conections (shackles) and any eye splices. "purdy strong" wont work. I need pounds rated for EACH item in your anchoring system.... or what normal people call "ground tackle." Can you tell me exactly what type bottom youre over??? HOw would you find out if you dont know? If you say look at a chart youre only 20% right. If you can not supply the requested information simply kiss your ass goodbuy. NOw for some other comments................................ The weight of your anchor is not the only consideration when calculating "holding ability" ANchoring is NOT rocket science NOR a magical art. Its just plain old fassioned RIGGING! and i dont mean rigging as the yachting group defines it. To be honest most choker setters know more about rigging than the average "captain" on every sail boat Ive talked to. ANd ya cant get more stupid than a choker setter.! Hell, guys have been dragging ships off beaches for hundreds of years. How do they do that???? A few anchors, some wire rope, a purchase or two. If a bunch of a two pack a day alcoholic thick knecked salvors can do it a Bank President with a univesity degree should be able to figure it out dont ya think Skip? To think all you need is an Acme FX 99 anchor to keep yo from draging is naive at best. Dear SKIP............... go read the following book and stop making such a public fool of yourself. "The Complete Book of Anchoring and Mooring", by Earl Hintz, Bob Hi, Bob, and group, Answers to your questions: 1) Boat as built was 33K, but with all the stuff, I presume to be at about 40K. No lift ever showed that much - but I can't believe it any less. Yes, I know, that's not a scientifically sound answer, but absent calibrated strain guages and a specific project to determine that, I doubt I'll ever know - at least not without putting it in a very carefully calibrated tank to measure the displacement. In any case, the windage, at least to me, would be the more significant issue. Not being an engineer (perhaps Roger, or you, if you are one, too) could tell me if that's a reasonable premise. 2) I have not put a strain guage, not owning one, on my chain. Further, thanks, I've not (yet) been in anything - at anchor - which exceeded 40 knots. Again, if I had the calculated windage, and the proper means (not an engineer) of calculation of wind forces I could probably tell you - but I can't. The SWL on the shackles and swivels is well in excess of my chain, which is all 5/16HT, G40 hotdipped galvanized, which SWL I don't recall at the moment. However, at the time I sized it/them, the chain was sufficient by all popular measures, and the swivels and shackles, what with my not wanting to have the weakest point at the anchor, were well over that. I gave several vendors a hard time when they couldn't be definitive about the SWL, until I got very specific information on the parts I bought. Generally speaking, other than chain, which if I did would be unwieldy for the weight, I've gone at least one size larger than recommended, which is how I wound up with 130# of anchor on the bow rollers. As to eye splices, we have only one on the bow, and that's on the secondary anchor, which has in front of it 175' of the aforementioned stuff. That is to a size up from recommended, not 5/8 but 3/4 MegaBraid, spliced properly. There's not a better way to do it and have it go through the gypsy, so it's as good as it's going to get without that side being all chain as well. New England Rope feels very confident in that method of splice, so, as I can't prove them wrong, it's what I did. Our snubbers are in one case 5/8 threestrand on a logging hook, and 3/4 MegaBraid as above on a rather more hightech hook designed for 5/16. When we back down, including on the earlier mentioned adventures, it stretches very significantly. No, I don't know the SWL on those, either, but I did at the time. I'm not going to bother to look it up for this exercise. As to the supplementary anchoring gear, we have a Fortress 37, a CQR45, and two smaller danforths, along with rode bags. Those have the aforementioned MegaBraid and 3/8BBB as which came with the boat as built, but only about 30', as to carry that in the dink would be problematic for more. I have additional hundreds of feet of both 3/4 Megabraid and 5/8 threestrand aboard to extend the 300' standard on all our rodes, whether all chain or part. As to finding out exactly what kind of bottom I'm over, throwing a small anchor overboard, setting it hard (and dragging, as would be possible with a small one other than hooked terminally on some rock or other obstruction), motoring over it and then pulling it up to inspect what came up would be my favored one in waters other than conducive to diving. As my current professor, however, I expect you'll correct me as to the actual proper means. Local knowledge might help, but I've learned to be very distrustful of LN, as, from what I've gotten and experienced, it's many times either wrong or malicious. As to your other comments, I believe I'm aware of what you mentioned, other than I don't know the term "Choker Setter" - a clear deficiency in my education which I will work diligently to remedy. As to reading, I agree that the Hinz (Hintz?) book will be worth acquiring - but I've not yet crossed its path. The Seven Seas flea market at Annapolis provided me with two others I've been seeking, Storm Tactics (on which much storm has been occasioned in these parts recently) and Heavy Weather Sailing. As to being a public fool, how else would I get publicly taken properly to task so I could become less of one in private??? :{)) L8R Skip PS are you a character in a Steven Patsis-created strip's character's occasional novelizations? Certainly, nearly anything I read suggests a match... Morgan 461 #2 SV Flying Pig KI4MPC See our galleries at www.justpickone.org/skip/gallery ! Follow us at http://groups.google.com/group/flyingpiglog and/or http://groups.yahoo.com/group/TheFlyingPigLog "You are never given a wish without also being given the power to make it come true. You may have to work for it however." (and) "There is no such thing as a problem without a gift for you in its hands. You seek problems because you need their gifts." (Richard Bach, in The Reluctant Messiah) |
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