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#11
posted to rec.boats.cruising
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October 26 - What A Drag!
Bob,
What a bunch of crap! How many people do you think actually know any of the stuff that you're asking, other than the wight of their boat? According to my logs, I've anchored in over 400 separate locations throughout the Caribbean and the US, and without knowing the answers to your questions, I've only managed to drag a handful of times. I've been in storms at anchor that have reached 72 kts and have bent my anchor roller assembly like a pretzel. See http://www.geoffschultz.org/2002 _Sailing/Honduras_Roatan/imagepages/image24.htm What I do know is that I buy the highest quality components that I can and I make sure that the load ratings match. There will always be a weakest link, which will rear it's ugly head in those worst of circumstances, but that isn't what this discussion is about. I've cruised the Chesapeake and know that most towns only have 1-2 anchorages. In places like the Chesapeake I utilize cruising/anchoring guides that provide me with basic information such as the holding. Do I *know* what the bottom is? NO (but I'd bet it's mud in the Chesapeake), so I'll rely on data gathered from people who have anchored there before. Can I be sure that I didn't hook a plastic bag, tire, or who knows what? No! Can I practice good anchoring techniques such as using appropriate scope and backing down sufficiently hard? YES! I used to utilize a 45 lb CQR as my primary anchor, but I replaced it with a 25 KG Rocna and absolutely love the new anchor. I've been in anchorages where other boats with CQRs were dragging and we stayed put. If I was in turtle grass over sand, I always had to hand set the CQR, but I don't have to do that with the Rocna. I'm thoroughly impressed. Skip certainly has had more than his share of problems, and many of them are self inflicted, but he's out there doing it and hopefully learning from his mistakes. Many of the so-called experts in this forum spend all of their time behind a computer and quote text books instead of actually cruising. Maybe Skip is crazy by documenting his adventures and misfortunes in such a public fashion, but I give him credit for not giving up. -- Geoff Bob wrote in news:1193467621.642831.28750 @e9g2000prf.googlegroups.com: 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 -- -- Geoff www.GeoffSchultz.org |
#12
posted to rec.boats.cruising
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October 26 - What A Drag!
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) |
#13
posted to rec.boats.cruising
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October 26 - What A Drag!
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) |
#14
posted to rec.boats.cruising
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October 26 - What A Drag!
On Sat, 27 Oct 2007 06:47:01 -0000, Bob wrote:
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 ... Bob You must be joking? This is the sort of questionnaire that an engineer might address. I will tell you for free, that the rec.boats.cruising participation group is not largely comprised of engineers. You have this data for your boat, I expect. Accurate to +- 5% I expect? Brian Whatcott Altus OK p.s. Drag is determined by a whole bunch more factors than wind speed, dude. |
#15
posted to rec.boats.cruising
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October 26 - What A Drag!
As to a GPS anchor watch I note these two incidents:
A couple of years ago my wife and I took a walk down an old power line that was over grown but had a trail. I took my pocket GPS with me and logged the track. The outgoing and return tracks were off by at least 150 yards in places. Not big jumps but just gradually wandering off. As I was walking a very narrow path through otherwise dense forest I know I was traveling the exact same path. A couple of days later I unintentionally left the GPS plugged into my car overnight with the track turned on. The next morning I had a "scatter plot" for my track covering a couple of hundred yards. The GPS (Magellan) has AIS and has been dead accurate in every other instance. I use it to find deer stands in the dark when hunting - going out in the morning before sunrise. The point is that GPS SYSTEM, though phenomenally accurate MOST of the time can fail SOME of the time. I have thought of this when using the anchor alarm. I might be dragging or the GPS SYSTEM might be brain farting. A final point, oft made by Nigel Calder, not all charts are normalized to the same datum. For example, through first hand experience, and as noted on the charts, the South coast of Newfoundland charts Lat/Lon can vary by as much as 1/2 mile from the GPS position. It is not a simple conversion factor, the CGS does not know what the origional datum was. It baffles me how the CGS allows this to continue but it does. If you are interested I took a picture of my plotter which I posted here. http://ph.groups.yahoo.com/group/sho...os/browse/bd9e Howard |
#16
posted to rec.boats.cruising
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October 26 - What A Drag!
"Skip Gundlach" wrote in message oups.com... On Oct 27, 2:47 am, Bob wrote: On Oct 26, 6:32 am, Skip Gundlach wrote: 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? Hey Skip Were you a Bank President? What Bank? Just curious. I work for a Bank in Oz and for many years while working for another bank was a member of Robert Morris. Hoges in WA as in Western Australia. By the way, you keep finding all sorts of place where the holding's not so good. My wife and I will be going up the east coast of the US in a couple of years and anywheres you come to grief I'm going to pay particular attention to. |
#17
posted to rec.boats.cruising
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October 26 - What A Drag!
The point is that GPS SYSTEM, though phenomenally accurate MOST of the
time can fail SOME of the time. More likely your unit wasn't picking up enough satellites. This is not the fault of the GPS system. Some older units didn't do a very good job of pickup up sats when there's overhead leaf canopy (some still don't). Don't blame the system for inferior equipment. An anchor watch in open water, without high terrain or foliage nearby, will likely be very consistent in it's location. If you are interested I took a picture of my plotter which I posted here. http://ph.groups.yahoo.com/group/sho...os/browse/bd9e Which is a useless link unless someone joins that group. Try using a free service like flickr instead of forcing people to join (and presumably then leave) a group. |
#19
posted to rec.boats.cruising
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October 26 - What A Drag!
hpeer wrote:
As to a GPS anchor watch I note these two incidents: Someone asked Skip if he kept an anchor watch. Normally once we are anchored, the anchor watch is my responsibility. Probably because once Bob is asleep, he's asleep. This is roughly what I do. I leave the GPS in the cockpit on (plugged in to the pedestal), down to the greatest magnification that it has, and I mark where it shows that we are anchored, and label the mark. I also mark and label the anchor spot on the electronic charts on the computer. If we are anchored near any kind of civilization, I take mental bearings on the various shore points that I can see and note their relationship to the boat. When I go down into the cabin, I look out the ports next to me when I'm in bed and note what I see from there. Periodically I will wake up and look out the port I can look out the port without really getting up, but if what I see is different from what I expect to see, I will go up into the cockpit and look at the track on the GPS. (I can wake myself up on schedule without an alarm - the interval of waking decreases i.e. I wake more- often as the hazard that I perceive increases.) I wake more often in high wind or if we have something closer to us. I do have a kind of alarm, in that if the wind picks up at night, the wind gen will 'signal' by way of increased noise and vibration which we hear in the cabin (you can't hear it in the cockpit, but the radar arch where the wind gen is mounted transmits the vibration to the deck). The only times we've ever dragged after the anchor has been set has been when we were anchored for lunch. But if I were to be concerned about where we were, I'd wake Bob up. Bob is very picky about where he sets the anchor (depth of water and type of bottom), and I back down on it until he is satisfied that it is well set. We usually get up early and stop well before dark, especially on the way south because not only does it get dark earlier in the fall, but the sun gets in your eyes otherwise because it is so low in the sky at this time of year.. We have anchored at dusk, but we have only (AFAI remember) anchored after dark-dark once, and that was when we were coming up from Indian Key to Miami and we were going to have a storm for the next few days. We wanted to be out of the Hawk Channel before the bulk of the storm hit. We were sailing a little faster than usual because of the wind. March 22, 2004 We got up about 0630. Bob is becoming more worried about the mooring and says he would rather be at anchor. I am very anxious to tour Indian Key (which we missed doing on the way down because we were in such a hurry to get to Marathon), but I actually agree with him, although I don't say so. The problem is that we know from experience there is NO protection from NE or E winds in Hawk Channel (that we can get to) except possibly Rodriguez Key which is really close by. I don't think we will be any better off anchored there than we would be on a mooring as it is quite rocky with poor holding. And it usually takes us two days to get from here to Miami.. I finally give in and tell Bob that we can go. We got underway about 0745 which is a bit later than usual if we expect a long day. We get to Tavernier at 1000. It is way too early to stop. Where can we go for the night? I'm considering the options. We can see Rodriguez ahead. I suggest that if we are willing to anchor after dark, we might be able to get all the way to Miami tonight. Bob is really happy with that idea. cut what I wrote about the trip The wind really picked up from the oncoming storm about 1700. About 1930, we have come up Biscayne Bay to Miami, and it is dark. I have picked out a place to anchor in an indentation off Hurricane Harbor which is at the west side of Key Biscayne. Bob has prepared the anchor, taken in the sails, and handed the helm over to me to find a spot to anchor. I motor in watching the ATON on the radar and our position on the electronic chart. Bob is standing in the forward companionway trying to pick out the flashing lights on the marks. Finally about in the middle of the area (I really want to be closer to shore, but I'm chicken to go any farther in), I'm ready to have Bob drop the hook. It sets quickly and firmly. We have done 73.6 sm (64nm) at an average speed of 6.2 mph. It is now really windy |
#20
posted to rec.boats.cruising
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October 26 - What A Drag!
Hoges in WA wrote:
"Skip Gundlach" wrote in message .... By the way, you keep finding all sorts of place where the holding's not so good. My wife and I will be going up the east coast of the US in a couple of years and anywheres you come to grief I'm going to pay particular attention to. The holding is just fine. Skip's problem is that he's using a Delta in soft mud where it is not at its best. I use a Delta all the time in New England where the bottom is somewhat thicker, but in the soft Chesapeake mud a Danforth style is needed. A Fortress is good, especially when the flukes are set at the "mud" angle. However, they can have a problem resetting if the mud is too thick, or if the flukes have been fouled. A good approach, then, is to set two anchors off the bow - one Delta or CQR that will reset and at worst only drag slowly, and one Fortress that will dig deep in the soft mud. Either of the anchors should hold if well set; both of them guarantees an anxiety-free night. I carry a 35# Delta on 50 feet of chain plus a Fortress FX23 with only a short chain ready on deck. You really don't want big chain on the mud anchor because that can prevent it from digging in quickly. Also, the Fortress shouldn't be too big because it will be deployed by hand, possibly even rowed out. Usually I just power over to Port and drop the the Fortress, but I've rowed or even walked it to a good spot. Having a big heavy second anchor is not good incentive to actually using it - Skip's experience is a case in point. |
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