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On Feb 14, 4:35 pm, "capt.bill11" wrote:
On Feb 14, 1:42 pm, "Roger Long" wrote: KLC Lewis wrote: Is it ever possible to get a primary bond between polyester resin and epoxy? I don't know, but I've been told "no" by so many people over the years that I tend to act as if I believe it. "They" always told me to use epoxy on old polyester because it would be stronger than new polyester to old. Maybe not a primary bond but strong. I remember gazing at my navel over a transducer through hull backing block that wouldn't have much mechanical connection because the fitting was the flush type with very little shoulder. I wanted to use 5200 because of the difficulty in fitting a block tightly and working with epoxy at arm's length in a small space. According to the published tensile strength numbers, the 6" x 6" block would lift the boat. Now, I wouldn't stand under it if I tried it but it seemed like plenty of strength for the job to me. Some perspective on strength may be in order. If "Flying Pig" had been a classic wooden boat, the total tensile strength of her hull would have been the area of the frames or about the same as less than 3/8 inch of wood. The static caulking and swelling pressure would already load up these structural members significantly. Her bulkheads would have probably landed on a frames and had two screws in each plank, maybe 80 screws in all and each close to the end of the plank they held. Boats of this construction have weathered many storms and circumnavigations. Most of them had some rot somewhere by the time they were really tested. It's true that, if FP had been a wooden boat, S&L probably would have been standing in the water long before the chopper arrived. It would also be nice if the restored boat was as strong or stonger then when built. However, there is also the question of how strong it really needs to be. Stronger is always bettter but, if that was the only consideration, we would all be sailing steel boats. If the best tabbing job that can be done without stripping the boat fails down the road, it's highly unlikely the boat would sink, even in a major storm. They might have to ease off on the sails and limp a bit but the worst probable case isn't that dire. The most likely failure mode would be for the localized high stress areas to start to open up. The big gun repairs could then be concentrated on those in a year or two. Remember, this boat was pounding on coral with all these structural members loose and she still came off watertight. -- Roger Long I have to agree with Roger on this. I've seen a number of fiberglass boats that have taken a pounding, been repaired and sailed/motored away to be just fine. I think it's way over reacting to say it will never be as strong so it's time to junk it or risk dying at sea. I say, fix the rudder, retab/epoxy it, reinforce where you can and get on with the trip. The boat doesn't seem to have any major holes in it for crying out loud. Preface: for those interested in the gory details, pictures are up in the gallery at the end of my sig line. Click the first thumbnail... Conversation with the yard owners has confirmed my suspicions in many regards. The nicer of them (you'll see a different post on the other side) is reflected in the prior couple of posts about our stout old gal, with which they agree. So... We finally have a plan. This is the letter I just sent to my adjuster: From: "Skip Gundlach" To: "Gibson, Jean" ; ; "My Gmail post Copy" Subject: Flying Pig and Keys Boat Works Date: Wednesday, February 14, 2007 7:00 PM Hi, Jean, We are being raped here. We are moving the boat back to Salt Creek Marina. We have talked with several contractors here in the yard (including one the yard was going to use for fiberglass work), and there is total agreement on our course of action, suggested by them before we brought it up, but confirming our suspicions as to the way to proceed. Which is: Some quick-and-dirty repairs to make her watertight and steerable (well, improve steering - it steered behind our tow in, but could be better), and off we go. We are headed to Salt Creek Marina, 107 15th Avenue SE, St. Petersburg FL 33701. We'll re-establish contact from our first internet availability once we are off. We'll pay the yard bills and keep the receipts, in the event they are of any use. The yard bills here are 6 times what they'll be in St. Pete. TowBoatUS already knows about you and has effectively got a lien on the vessel for salvage, so that will be handled by insurance funds. As the total costs of our repair, even if we contract the repairs 2-3x more effectively in St. Pete, will exhaust the (insurance) funds available, we're no longer going to retain anything for Bob to see or review for restitution, so there's no need for his review on any of those. We'll stay in touch. However, as Captain, I have to take responsibility for my vessel, and she is in dire peril (financially) here, so we're taking measures to minimize the damage. L8R Skip Morgan 461 #2 Disaster link: http://ipphotos.com/FlyingPig.asp 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 "Twenty years from now you will be more disappointed by the things you didn't do than by the ones you did do. So throw off the bowlines. Sail away from the safe harbor. Catch the trade winds in your sails. Explore. Dream. Discover." - Mark Twain |
#2
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posted to rec.boats.cruising,rec.boats.building
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On Feb 14, 7:21 pm, "Skip Gundlach" wrote:
On Feb 14, 4:35 pm, "capt.bill11" wrote: On Feb 14, 1:42 pm, "Roger Long" wrote: KLC Lewis wrote: Is it ever possible to get a primary bond between polyester resin and epoxy? I don't know, but I've been told "no" by so many people over the years that I tend to act as if I believe it. "They" always told me to use epoxy on old polyester because it would be stronger than new polyester to old. Maybe not a primary bond but strong. I remember gazing at my navel over a transducer through hull backing block that wouldn't have much mechanical connection because the fitting was the flush type with very little shoulder. I wanted to use 5200 because of the difficulty in fitting a block tightly and working with epoxy at arm's length in a small space. According to the published tensile strength numbers, the 6" x 6" block would lift the boat. Now, I wouldn't stand under it if I tried it but it seemed like plenty of strength for the job to me. Some perspective on strength may be in order. If "Flying Pig" had been a classic wooden boat, the total tensile strength of her hull would have been the area of the frames or about the same as less than 3/8 inch of wood. The static caulking and swelling pressure would already load up these structural members significantly. Her bulkheads would have probably landed on a frames and had two screws in each plank, maybe 80 screws in all and each close to the end of the plank they held. Boats of this construction have weathered many storms and circumnavigations. Most of them had some rot somewhere by the time they were really tested. It's true that, if FP had been a wooden boat, S&L probably would have been standing in the water long before the chopper arrived. It would also be nice if the restored boat was as strong or stonger then when built. However, there is also the question of how strong it really needs to be. Stronger is always bettter but, if that was the only consideration, we would all be sailing steel boats. If the best tabbing job that can be done without stripping the boat fails down the road, it's highly unlikely the boat would sink, even in a major storm. They might have to ease off on the sails and limp a bit but the worst probable case isn't that dire. The most likely failure mode would be for the localized high stress areas to start to open up. The big gun repairs could then be concentrated on those in a year or two. Remember, this boat was pounding on coral with all these structural members loose and she still came off watertight. -- Roger Long I have to agree with Roger on this. I've seen a number of fiberglass boats that have taken a pounding, been repaired and sailed/motored away to be just fine. I think it's way over reacting to say it will never be as strong so it's time to junk it or risk dying at sea. I say, fix the rudder, retab/epoxy it, reinforce where you can and get on with the trip. The boat doesn't seem to have any major holes in it for crying out loud. Preface: for those interested in the gory details, pictures are up in the gallery at the end of my sig line. Click the first thumbnail... Conversation with the yard owners has confirmed my suspicions in many regards. The nicer of them (you'll see a different post on the other side) is reflected in the prior couple of posts about our stout old gal, with which they agree. So... We finally have a plan. This is the letter I just sent to my adjuster: From: "Skip Gundlach" To: "Gibson, Jean" ; ; "My Gmail post Copy" Subject: Flying Pig and Keys Boat Works Date: Wednesday, February 14, 2007 7:00 PM Hi, Jean, We are being raped here. We are moving the boat back to Salt Creek Marina. We have talked with several contractors here in the yard (including one the yard was going to use for fiberglass work), and there is total agreement on our course of action, suggested by them before we brought it up, but confirming our suspicions as to the way to proceed. Which is: Some quick-and-dirty repairs to make her watertight and steerable (well, improve steering - it steered behind our tow in, but could be better), and off we go. We are headed to Salt Creek Marina, 107 15th Avenue SE, St. Petersburg FL 33701. We'll re-establish contact from our first internet availability once we are off. We'll pay the yard bills and keep the receipts, in the event they are of any use. The yard bills here are 6 times what they'll be in St. Pete. TowBoatUS already knows about you and has effectively got a lien on the vessel for salvage, so that will be handled by insurance funds. As the total costs of our repair, even if we contract the repairs 2-3x more effectively in St. Pete, will exhaust the (insurance) funds available, we're no longer going to retain anything for Bob to see or review for restitution, so there's no need for his review on any of those. We'll stay in touch. However, as Captain, I have to take responsibility for my vessel, and she is in dire peril (financially) here, so we're taking measures to minimize the damage. L8R Skip Morgan 461 #2 Disaster link:http://ipphotos.com/FlyingPig.asp SV Flying Pig KI4MPC See our galleries atwww.justpickone.org/skip/gallery! Follow us athttp://groups.google.com/group/flyingpiglogand/orhttp://groups.yahoo.com/group/TheFlyingPigLog "Twenty years from now you will be more disappointed by the things you didn't do than by the ones you did do. So throw off the bowlines. Sail away from the safe harbor. Catch the trade winds in your sails. Explore. Dream. Discover." - Mark Twain Got any pics of the inside damage? Not for morbid voyeurism but cuz this has put me into vicarious problem solving mode. |
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