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#21
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posted to rec.boats.cruising
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![]() "Skip Gundlach" wrote in message ups.com... [about emergency rudder/steering] Depending on where we were in the failure, my going under with a brace and bit (I have a full selection aboard) with the hookah, and holing all that lovely repair work I did on the rudder, passing a line through same, with double stops on the immediate exteriors, with the lines led up to winches would be another. Skip, if you are serious about this particular solution (and it isn't a bad one), I have read about people who pre-drilled the hole through the rudder, then filled it with putty, or something else that would be easy to punch out at sea. It could make a difference -- I once tried to remove a line from my prop while at sea in moderate swells, and finally decided that the danger wasn't worth it. We ended up sailing a couple of days until we reached land and could tuck into a sheltered spot to do the job. I couldn't imagine trying to drill through the rudder in similar conditions. Whatever emergency system you have, you ought to try it in easy conditions to make sure that all the pieces fit. Of course this isn't always practical, but do test what you can. - Paul - S/V VALIS |
#22
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posted to rec.boats.cruising
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* Vic Smith wrote, On 8/18/2007 11:20 PM:
On Sat, 18 Aug 2007 10:15:18 -0400, Rosalie B. wrote: (Because it isn't just driving along the highway and spotting a vacancy sign, you need some kind of cruising guide so that you know where the places ARE. I usually have three or four to help me make a decision.) I've noticed guides are essential for cruisers. Much more complicated than driving a car down the road. We did a 23 day road trip once and all I needed was the Rand McNally campsite guide to find every state, local and national park campsite and KOA in the country. It was darn accurate on amenities and prices too. --Vic I think I had cruised for several years before I realized that all charts were not made by Texaco. |
#23
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posted to rec.boats.cruising
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On Aug 18, 9:29 pm, "Paul" wrote:
"Skip Gundlach" wrote in message ups.com... [about emergency rudder/steering] Depending on where we were in the failure, my going under with a brace and bit (I have a full selection aboard) with the hookah, and holing all that lovely repair work I did on the rudder, passing a line through same, with double stops on the immediate exteriors, with the lines led up to winches would be another. Skip, if you are serious about this particular solution (and it isn't a bad one), - Paul - S/V VALIS Hello Paul: Please do not encourage this type of behavior of a 60+ yo retired banker who is a cardiac patient. I did underwater work for years. My last job was an emergency stern tube patch on the Gae Chug Ho, a 600' Korean fish processor. They needed to repack the stuffing box. They had a small leak: only 10 mt/ hr. This was just south of the Pribilof Islands (Bering Sea) many Novembers ago. It kicked my ass and I was a very fit 32. Please don't encourage Skip to jump over the side and expect him to drill a hole using both hands. Do you really expect him to wrap his legs around the rudder while doing the equivalent of a 20 minute sit- up (crunch) and make that happen ??!?! I don't think he has the abdominals to pull it off. I agree with you. The time for such rudder mods is IN THE YARD! Bob (Divers Institute of Technology 107/80) |
#24
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posted to rec.boats.cruising
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![]() "Bob" wrote in message ups.com... On Aug 18, 9:29 pm, "Paul" wrote: "Skip Gundlach" wrote in message ups.com... [about emergency rudder/steering] Depending on where we were in the failure, my going under with a brace and bit (I have a full selection aboard) with the hookah, and holing all that lovely repair work I did on the rudder, passing a line through same, with double stops on the immediate exteriors, with the lines led up to winches would be another. Skip, if you are serious about this particular solution (and it isn't a bad one), - Paul - S/V VALIS Hello Paul: Please do not encourage this type of behavior of a 60+ yo retired banker who is a cardiac patient. I did underwater work for years. My last job was an emergency stern tube patch on the Gae Chug Ho, a 600' Korean fish processor. They needed to repack the stuffing box. They had a small leak: only 10 mt/ hr. This was just south of the Pribilof Islands (Bering Sea) many Novembers ago. It kicked my ass and I was a very fit 32. Please don't encourage Skip to jump over the side and expect him to drill a hole using both hands. Do you really expect him to wrap his legs around the rudder while doing the equivalent of a 20 minute sit- up (crunch) and make that happen ??!?! I don't think he has the abdominals to pull it off. I agree with you. The time for such rudder mods is IN THE YARD! Bob (Divers Institute of Technology 107/80) Bob, I will let Skip make his own decisions about his ability. It sounds like you and I are in agreement, though, and I was trying to point out the difficulty of drilling a hole in the rudder at sea. The "putty trick" will make the job slightly less impossible, but in reality this is something you would only attempt in calm conditions, or in extremis. For what it's worth, my emergency steering options a 1) An emergency tiller which drops through the cockpit sole onto the rudderpost. I have blocks and lines ready to connect to help control the tiller. 2) An "MRUD" emergency rudder for my Monitor windvane. I have a tiller attachment for the windvane. These have both been tested, admittedly not during difficult conditions. -Paul -S/V VALIS |
#25
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posted to rec.boats.cruising
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Bob, I will let Skip make his own decisions about his ability.
Of course. ![]() It sounds like you and I are in agreement, Absolutly..! though, and I was trying to point out the difficulty of drilling a hole in the rudder at sea. Id say near impossible even for those who dive for dollars. but in reality this is something you would only attempt in calm conditions, or in extremis. Again, with no fear of making an ass of my self I'll make a blanket statment: extemis is an absolute NO time. Assuming not fun weather. For what it's worth, my emergency steering options a Wise, prudent, and solid judgment. Yes, there are ample methods to make a boat go the way ya want. Those you mentioned are great!. Ever toss a warp/drogue/tire/3'd bouy-bumper off the side while tied to a bow cleat? Chris -Paul -S/V VALIS- Hide quoted text - - Show quoted text - |
#26
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posted to rec.boats.cruising
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On Sat, 18 Aug 2007 12:27:15 +0000, Larry wrote:
Jeannette wrote in news:EMnxi.49875$YL5.30303 : Hello, Flying Pig has a different kind of antenna, but this is their direct satellite 137 Mhz Weatherfax receiver. You simply leave it running, attached to your laptop with the weatherfax software running in background. When the satellite transmits its current picture to the ground, you pick it up in a wide footprint across North America. The receiver automatically scans all the satellite channels so whatever bird is in range of you, you'll get the pictures, which are not transmitted continuously. http://www.dxzone.com/cgi-bin/dir/jump2.cgi?ID=14606 Flying Pig has this antenna mounted up on its aft arch on the starboard side of the solar array. I doubt it works any better than the turnstile antenna from Hamtronics, which would be much easier to keep aloft than this monster. I must admit it does make an impressive picture. I'm not sure whether Skip's is a commercial or homebrew model. Hope this helps. The pictures are very detailed. It's like having access to the same pictures on the internet. Here's the picture it produces from my favorite weather site: http://vortex.plymouth.edu/gE_ir.gif The Plymouth State College (NH) weather site is completely operated by meteorology students and free for all without all the SPAM nonsense. (c; These *******s keep calling me so I'm feeding them to the spambots. Larry, I have looked at these links and have spent the last few hours wandering about the web. What I cannot find out is whether I can receive these photos south of the equator. Seems like a great system at a reasonable cost. Can you advise please. cheers Peter N.Z. yacht Herodotus |
#27
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On Mon, 20 Aug 2007 22:02:33 +1000, Herodotus
wrote: I have looked at these links and have spent the last few hours wandering about the web. What I cannot find out is whether I can receive these photos south of the equator. Seems like a great system at a reasonable cost. Can you advise please. That's really a two part question. I'm reasonably certain that you could receive the pictures but I don't know if the satellites are set up to capture southern hemisphere images. |
#28
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posted to rec.boats.cruising
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On Mon, 20 Aug 2007 09:40:34 -0400, Wayne.B
wrote: On Mon, 20 Aug 2007 22:02:33 +1000, Herodotus wrote: I have looked at these links and have spent the last few hours wandering about the web. What I cannot find out is whether I can receive these photos south of the equator. Seems like a great system at a reasonable cost. Can you advise please. That's really a two part question. I'm reasonably certain that you could receive the pictures but I don't know if the satellites are set up to capture southern hemisphere images. Is it worth noting that CRTs need to be aligned properly, according to the local version of the earths magnetic field?It is different according to the latitude, especially which hemisphere you are in. Flat screens don't care. Casady |
#29
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* Richard Casady wrote, On 8/20/2007 10:57 AM:
On Mon, 20 Aug 2007 09:40:34 -0400, Wayne.B wrote: On Mon, 20 Aug 2007 22:02:33 +1000, Herodotus wrote: I have looked at these links and have spent the last few hours wandering about the web. What I cannot find out is whether I can receive these photos south of the equator. Seems like a great system at a reasonable cost. Can you advise please. That's really a two part question. I'm reasonably certain that you could receive the pictures but I don't know if the satellites are set up to capture southern hemisphere images. Is it worth noting that CRTs need to be aligned properly, according to the local version of the earths magnetic field?It is different according to the latitude, especially which hemisphere you are in. Flat screens don't care. You just turn the tube up-side-down for the Southern hemisphere. Really. When I worked on an orbiting telescope we discovered that the star trackers had insufficient magnetic shielding. I had to create an ephemeris database for the magnetic field in orbit, and apply the corrections to the nav solution. I doubt there are many using CRTs for computers on boats. A bigger issue is compass corrections. |
#30
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posted to rec.boats.cruising
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Herodotus wrote in
: Larry, I have looked at these links and have spent the last few hours wandering about the web. What I cannot find out is whether I can receive these photos south of the equator. Seems like a great system at a reasonable cost. Can you advise please. cheers Peter N.Z. yacht Herodotus Peter, the Satellite Services Division of NOAA, our weather bureaucrats, is on : http://www.ssd.noaa.gov/ with full access to all weather products that come down from the birds. The birds do an extensive tropical zone picture set every few hours that come down on 137 Mhz. They also take a "full disk" picture of the whole hemisphere you may find useful. However, their sector scans appear to be limited to the northern edge of South America up to Canada...the Caribbean and USA. If there is some particular weather of interest to the US Military or commercial interests, they make special arrangements to photograph it in IR/Visible/Water Vapor if it's over the bird's horizon, including South America. Of course, Geostationary Equatorial satellites, even so high up, cannot see the very high latitudes in either direction. The website also contains MITSAT pictures from the Antarctic, south of NZ to Siberia. These satellites are over your horizon for direct contact, making it impossible. Full disk images from Meteosat: http://www.goes.noaa.gov/FULLDISK/GMIR.JPG are also from this website, which covers the whole South Atlantic in its full disk pictures. I'm not sure what frequency Meteosat operates on for direct download of its pictures. Search Google for Meteosat schedules and you should be able to find them with the transmission times. South America is on the western edge of Meteosat's view from over Africa. This bird's pictures are fantastic as they show the spawning grounds of the hurricanes headed for me. A massive gallery of GOES pictures from the two 137 Mhz birds is stored, forever I think, on: http://cimss.ssec.wisc.edu/goes/misc...ng_images.html which will show you what kind of pictures it takes, including the Southern region. Here's a tropical cyclone off the Brazilian Coast: http://cimss.ssec.wisc.edu/goes/misc/040326/040326.html Those pictures would be available on the 137 Mhz receiver from Hamtronics. However, I do not see a "regular schedule" of South Atlantic pictures, probably as it would require too much precious fuel to spin the bird around all the while to take them. Larry -- |
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