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#1
posted to rec.boats.cruising
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Cape Horn WV info
Talked to a cruiser back from 4 years in the south pacific on an Oceanis 43 with a Cape Horn windvane. He reports the vane worked well with a couple of exceptions. 1) The tube transversing the transom is not watertight and following seas do push water thru it. 2) His unit started sticking where the rod passes thru the plastic bushing. After several emails with Cape Horn, they finally admitted that the plastic they used had a tendency to absorb water and swell up to 15%. The fix was to disassemble and bore out the bushing using the proper sized drill. Cape Horn told him the were "thinking" of going to delrin or something else. His unit is 5 years old and he didn't know if they have since upgraded. The only other problem he encountered was a failed block. He reported no abraded control lines. BTW, his unit was installed by a Cape Horn rep. Gordon |
#2
posted to rec.boats.cruising
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Cape Horn WV info
On Sat, 10 May 2008 11:07:42 -0700, Gordon wrote:
Talked to a cruiser back from 4 years in the south pacific on an Oceanis 43 with a Cape Horn windvane. He reports the vane worked well with a couple of exceptions. 1) The tube transversing the transom is not watertight and following seas do push water thru it. 2) His unit started sticking where the rod passes thru the plastic bushing. After several emails with Cape Horn, they finally admitted that the plastic they used had a tendency to absorb water and swell up to 15%. The fix was to disassemble and bore out the bushing using the proper sized drill. Cape Horn told him the were "thinking" of going to delrin or something else. His unit is 5 years old and he didn't know if they have since upgraded. The only other problem he encountered was a failed block. He reported no abraded control lines. BTW, his unit was installed by a Cape Horn rep. Gordon There's a board used in aircraft still - been round for ever, that looks like SRBP (synthetic resin bonded paper) that is called SRBF where the fabric layers are made of linen. It's used for cable fairleads. It turns out it has an unexpected property - it is durable against frictional wear because it is self-lubricating. Who would have guessed? When I have proposed high density polyethylene for similar purposes I have heard something like "we KNOW this works, how long does HDPE last?". You can buy HDPE cutting boards at Walmart for peanuts - and SRBF is expensive and hard to gert any more, But the Cape Horn plastic bush story make this jump right back to mind! (Nylon swells and weakens I believe?) Brian Whatcott Altus OK |
#3
posted to rec.boats.cruising
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Cape Horn WV info
On Sat, 10 May 2008 14:22:24 -0500, Brian Whatcott
wrote: There's a board used in aircraft still - been round for ever, that looks like SRBP (synthetic resin bonded paper) that is called SRBF where the fabric layers are made of linen. It's used for cable fairleads. It turns out it has an unexpected property - it is durable against frictional wear because it is self-lubricating. Who would have guessed? Don't Carp on about it.. http://www.tufnol.com/tufnol/default.asp?id=21 When I have proposed high density polyethylene for similar purposes I have heard something like "we KNOW this works, how long does HDPE last?". You can buy HDPE cutting boards at Walmart for peanuts - and SRBF is expensive and hard to gert any more, But the Cape Horn plastic bush story make this jump right back to mind! (Nylon swells and weakens I believe?) Yes, some types more than others. http://machinedesign.com/BDE/materia...demat2_29.html |
#4
posted to rec.boats.cruising
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Cape Horn WV info
On Sat, 10 May 2008 14:22:24 -0500, Brian Whatcott
wrote: There's a board used in aircraft still - been round for ever, that looks like SRBP (synthetic resin bonded paper) that is called SRBF where the fabric layers are made of linen. It's used for cable fairleads. It turns out it has an unexpected property - it is durable against frictional wear because it is self-lubricating. Who would have guessed? When I have proposed high density polyethylene for similar purposes I have heard something like "we KNOW this works, how long does HDPE last?". You can buy HDPE cutting boards at Walmart for peanuts - and SRBF is expensive and hard to gert any more, But the Cape Horn plastic bush story make this jump right back to mind! (Nylon swells and weakens I believe?) Brian Whatcott Altus OK FWIW - my experience Nylon should not be used for underwater or near water bushings as it has a tendancy to swell and thus tighten on the shaft. I had the bottom and top bushing for my rudder made of HDPE and they are still going strong - no swelling, no wear, no friction after 15 years in the water. It is the modern lignum vitae (sp?) So far as I am concerned, the stuff is magic. You can drill it, saw it, file and chisel it and can thus make a myriad of thing about the boat. It is also cheap and readily available I find that the most useful is an offcut slab of 20mm (0.75") which I was given from a waste offcuts bin. In addition to the inflatable I have a hard GRP 9' 6" dinghy which breaks into two nesting halfs. In Australia I had to change the wooden keel rubbing strake sometimes 6 monthly as nothing seemed to resist the worms' boring activity, the dinghy being almost permanently in the water. I tried Iron Bark and most other suggestions from the old hands. I through bolted a length of HDPE to both halves and it is still going stronge, sharp coral has no effect and even the barnacles do not attach to it. Fantastic stuff. The homeware shops and supermarkets sell breadboards which vary in thickness from 2mm to about 12mm (0.5"). This stuff does not seem as dense as the industrial HDPE I have but it comes in very useful as washers, packers, shims, and anything else requiring a hard, cutable inert and non-conductive material. I always carry a couple of different sizes on board now. regards Peter |
#5
posted to rec.boats.cruising
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Cape Horn WV info
On Sun, 11 May 2008 06:56:43 +1000, Herodotus
wrote: Why is it that when I post to this newsgroup or write a hurriedly email, I make so many bloody typos? When I type a report or such I don't. Damned annoying FWIW - my experience Nylon should not be used for underwater or near water bushings as it has a tendancy to swell and thus tighten on the shaft. I had the bottom and top bushing for my rudder made of HDPE and they are still going strong - no swelling, no wear, no friction after 15 years in the water. It is the modern lignum vitae (sp?) So far as I am concerned, the stuff is magic. You can drill it, saw it, file and chisel it and can thus make a myriad of thing about the boat. It is also cheap and readily available I find that the most useful is an offcut slab of 20mm (0.75") which I was given from a waste offcuts bin. In addition to the inflatable I have a hard GRP 9' 6" dinghy which breaks into two nesting halfs. In Australia I had to change the wooden keel rubbing strake sometimes 6 monthly as nothing seemed to resist the worms' boring activity, the dinghy being almost permanently in the water. I tried Iron Bark and most other suggestions from the old hands. I through bolted a length of HDPE to both halves and it is still going stronge, sharp coral has no effect and even the barnacles do not attach to it. Fantastic stuff. The homeware shops and supermarkets sell breadboards which vary in thickness from 2mm to about 12mm (0.5"). This stuff does not seem as dense as the industrial HDPE I have but it comes in very useful as washers, packers, shims, and anything else requiring a hard, cutable inert and non-conductive material. I always carry a couple of different sizes on board now. regards Peter |
#6
posted to rec.boats.cruising
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Cape Horn WV info
On Sat, 10 May 2008 14:22:24 -0500, Brian Whatcott
wrote: On Sat, 10 May 2008 11:07:42 -0700, Gordon wrote: Talked to a cruiser back from 4 years in the south pacific on an Oceanis 43 with a Cape Horn windvane. He reports the vane worked well with a couple of exceptions. 1) The tube transversing the transom is not watertight and following seas do push water thru it. 2) His unit started sticking where the rod passes thru the plastic bushing. After several emails with Cape Horn, they finally admitted that the plastic they used had a tendency to absorb water and swell up to 15%. The fix was to disassemble and bore out the bushing using the proper sized drill. Cape Horn told him the were "thinking" of going to delrin or something else. His unit is 5 years old and he didn't know if they have since upgraded. The only other problem he encountered was a failed block. He reported no abraded control lines. BTW, his unit was installed by a Cape Horn rep. Gordon There's a board used in aircraft still - been round for ever, that looks like SRBP (synthetic resin bonded paper) that is called SRBF where the fabric layers are made of linen. It's used for cable fairleads. It turns out it has an unexpected property - it is durable against frictional wear because it is self-lubricating. Who would have guessed? I think you are talking about Micarta, dates back to 1910 or thereabout, and is still being used. When I have proposed high density polyethylene for similar purposes I have heard something like "we KNOW this works, how long does HDPE last?". You can buy HDPE cutting boards at Walmart for peanuts - and SRBF is expensive and hard to gert any more, But the Cape Horn plastic bush story make this jump right back to mind! (Nylon swells and weakens I believe?) Brian Whatcott Altus OK Bruce-in-Bangkok (correct Address is bpaige125atgmaildotcom) |
#7
posted to rec.boats.cruising
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Cape Horn WV info
On Sun, 11 May 2008 07:13:09 +1000, Herodotus
wrote: On Sun, 11 May 2008 06:56:43 +1000, Herodotus wrote: Why is it that when I post to this newsgroup or write a hurriedly email, I make so many bloody typos? When I type a report or such I don't. Damned annoying It is all that Greek coffee. Makes you hands shake and you miss the keys :-) Bruce-in-Bangkok (correct Address is bpaige125atgmaildotcom) |
#8
posted to rec.boats.cruising
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Cape Horn WV info
On Sun, 11 May 2008 13:24:49 +0700, Bruce in Bangkok
wrote: On Sun, 11 May 2008 07:13:09 +1000, Herodotus wrote: On Sun, 11 May 2008 06:56:43 +1000, Herodotus wrote: Why is it that when I post to this newsgroup or write a hurriedly email, I make so many bloody typos? When I type a report or such I don't. Damned annoying It is all that Greek coffee. Makes you hands shake and you miss the keys :-) Bruce-in-Bangkok (correct Address is bpaige125atgmaildotcom) No Bruce, It's just the thoughts of all those beautiful Thai maidens. Coupled with the uncontrollable drooling and dribbling it can be quite embarrassing. cheers Peter |
#9
posted to rec.boats.cruising
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Cape Horn WV info
On Sun, 11 May 2008 19:31:22 +1000, Herodotus
wrote: On Sun, 11 May 2008 13:24:49 +0700, Bruce in Bangkok wrote: On Sun, 11 May 2008 07:13:09 +1000, Herodotus wrote: On Sun, 11 May 2008 06:56:43 +1000, Herodotus wrote: Why is it that when I post to this newsgroup or write a hurriedly email, I make so many bloody typos? When I type a report or such I don't. Damned annoying It is all that Greek coffee. Makes you hands shake and you miss the keys :-) Bruce-in-Bangkok (correct Address is bpaige125atgmaildotcom) No Bruce, It's just the thoughts of all those beautiful Thai maidens. Coupled with the uncontrollable drooling and dribbling it can be quite embarrassing. cheers Peter Hey, we got some of them, you can have up to four of. No problem, just be sure that you provide for them all equally, in all senses of the word. (Which may make your hands shake even more). Bruce-in-Bangkok (correct Address is bpaige125atgmaildotcom) |
#10
posted to rec.boats.cruising
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Cape Horn WV info
On Sun, 11 May 2008 17:18:24 +0700, Bruce in Bangkok
wrote: No Bruce, It's just the thoughts of all those beautiful Thai maidens. Coupled with the uncontrollable drooling and dribbling it can be quite embarrassing. cheers Peter Hey, we got some of them, you can have up to four of. No problem, just be sure that you provide for them all equally, in all senses of the word. (Which may make your hands shake even more). Bruce-in-Bangkok (correct Address is bpaige125atgmaildotcom) Yeah, sure. I am both sadly and yet gratefully coming to the end of a 33 year marriage to only one woman. As for Moslems being able to have four wives, I would mind you of one of my favourite Englishman's comments "The definition of bigamy is having one wife too many; - monogamy is the same thing" - Oscar Wilde. Besides, religions aside, many of the Americans I have met whilst cruising are well on their way to having four wives, perhaps not more than one at a time but a considerable number of the cruising couples I have met are into their second or third marriages. I even met one man who had remarried his first wife after two in between. I am aways amused when i hear couples talk of "xxx's daughter came to stay" No, I am seriously considering 'hieing me to a monastery" or going gay without the sex. A lot of men I know are simply so easy to get along with. But.... there are a lot of gorgeous Thai women. Come to think of it, there are a lot of attractive women. My problem is that I am looking for the perfect woman. I found one once but she wasn't remotely interested in me. She was looking for the perfect man. No. I think I'll just stick with my six beautiful kids. There are no conditions and expiry date to a child's love and I have learned the hard way the truth of my Malay friend's advice that "pretty women are high maintenance". Look after yourself and be careful of the seditious "un-American" statements you have been making of late. They don't allow visitors at Guantanamo Bay and there are no lovely Thai women. cheers Peter |
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