Home |
Search |
Today's Posts |
#31
|
|||
|
|||
Hinz is a bit vague on the appropriate length for "riding stopper" as he
calls it. jeffies, I am not sure why you feel the need to quote Hinz on this issue. This is VERY simple physics. |
#32
|
|||
|
|||
They use their hats when a blow is expected. They put them on and leave.
Simple. If you don't understand that metaphor, think "searoom" From: Wayne.B Date: 11/10/2004 9:31 AM Eastern Standard Time Message-id: On 10 Nov 2004 00:26:11 GMT, (JAXAshby) wrote: HEAVY kellets (25# each, and often two or three on a rode) are sometimes used to overcome the inherent dangers of an all chain rode, at least up to 35+ knots of wind, then chain and nylon is used. =================================== How many kellets, and how much nylon rode, do they use on a supertanker? Or the QE2? |
#34
|
|||
|
|||
jeffies, go read the damned thing. then read it again, and again and again.
then if you STILL don't understand what it says, go look at plaited rope vs elongation, and THEN look at springy mountain climbing rope. 4 frickin' %, jeffies. get your wife to explain it to you. From: "Jeff Morris" Date: 11/10/2004 8:17 PM Eastern Standard Time Message-id: Read what, jaxie? The chart is very clear that the "working elongation" of nylon is up to 25%. Are you confusing "working elongation" with "destructive deformation"? Or perhaps you don't know the difference between nylon and polypropylene. Are you really claiming the nylon 3-strand is destroyed when its stretched over 4%? And you expect anyone to believe that you've ever been on a boat? "JAXAshby" wrote in message ... jeffies, go READ it again, this time let your wife explain it to you. what did you say your degree was in again? From: "Jeff Morris" Date: 11/10/2004 8:53 AM Eastern Standard Time Message-id: You seem to be having serious comprehension problems, jaxie. Time for another refill of meds. The chart in the New England Ropes brochure is quite clear, at least for anyone with a 4th grade education. They don't bother to mention elongation below 4%. The chart shows "working elongation" of over 20% for filament nylon 3-strand. The terms "destructive" and "deformation" are never mentioned. There is some feeling that after a major stress, perhaps over 25% of tensile strength, nylon rode should be replaced. This not a problem for a snubber, which can be considered sacrificial. This makes a good case for downgrading a primary rode and replacing it after a major blow. "JAXAshby" wrote in message ... jeffies, are you a lying sack of squat, or just too stupid to read your own cites? 4%, dood, your cite states, just like I said. Unless, of course, *you* don't know what destructive elongation is. What did you say your degree is in? we would like to hear you say it again. From: "Jeff Morris" Date: 11/9/2004 8:35 PM Eastern Standard Time Message-id: Yet another topic where jaxie can show his ignorance. NE Ropes says at 15% of breaking strength elongation is 15%. Marlow has similar numbers. But what would they know? http://www.neropes.com/techdata/3strand.pdf One can debate whether 15% of tensile strength is a proper safety factor, but for a snubber its not that critical. This works out to snubbers in the range of 30 to 60 feet. Personally, the need to rig snubbers was one of the issues that led me to stop using all-chain and go to a mixed chain/nylon rode. "JAXAshby" wrote in message ... ten foot of stretch on standard twisted nylon is about 150' to 250' of nylon, except under line breaking conditions. From: "Jeff Morris" Date: 11/7/2004 4:55 PM Eastern Standard Time Message-id: Even more important than the "droop" is the limited (almost non-existent) extension available to an all chain system. What its really needed is enough nylon to allow for 5 or 10 feet, or more, of stretch. "Jim Donohue" wrote in message news:rUtjd.90348$bk1.52418@fed1read05... "Amgine" wrote in message om... "Jim Donohue" wrote in message news:X2Uid.82404$bk1.80735@fed1read05... The problems is that above 35 knots of wind or so you have a straight rode. Uhm, maybe for your boat. In fact, just last weekend I was anchored out in 30 gusting 45 and neither chain+rope rode was bar-taut. On the other hand, I was wishing I had a bit more chain on both because I didn't have quite enough out for the weather (7:1 on a 7.5kg Bruce, and 5:1 on a 25lb. CQR) as I'd anchored 8 hours before the peak of the blow. To get a reasonable amount of shock absorption with all-chain, use a chain hook on about 30-40' of light nylon laid line and veer out a few more feet of chain. You'll get all the spring you want, but if there's much fetch you don't want too slack a chain to save your bows from a beating. I've never used either a kellet or buoy, but I'd like to experiment with both. Who has used which? Amgine http://wiki.saewyc.net/ See Complete Book of Anchoring and Mooring by Hinz page 113. On the ABYC hypothetical power boat of 45 feet and 15 foot beam the cantenary has 1 foot of "droop"per 100 feet of rode at 30 knots and 0 feet at 40 knots. If your boat is smaller and has a smaller section it may be a little higher. Hinz advocates the use of chain riding stoppers for all chain boats. He points out that all chain rodes are very good at parting or destroying something in high winds. They are also sufficiently noisey in high wind conditions to make sleep difficult. Jim Donohue |
#35
|
|||
|
|||
Not always
JAXAshby wrote: They use their hats when a blow is expected. They put them on and leave. Simple. If you don't understand that metaphor, think "searoom" From: Wayne.B Date: 11/10/2004 9:31 AM Eastern Standard Time Message-id: On 10 Nov 2004 00:26:11 GMT, (JAXAshby) wrote: HEAVY kellets (25# each, and often two or three on a rode) are sometimes used to overcome the inherent dangers of an all chain rode, at least up to 35+ knots of wind, then chain and nylon is used. =================================== How many kellets, and how much nylon rode, do they use on a supertanker? Or the QE2? |
#36
|
|||
|
|||
no, of course not. Those with 4x layer aluminum foil helmets are having sex
with small furry animals. From: otnmbrd Date: 11/10/2004 9:32 PM Eastern Standard Time Message-id: .net Not always JAXAshby wrote: They use their hats when a blow is expected. They put them on and leave. Simple. If you don't understand that metaphor, think "searoom" From: Wayne.B Date: 11/10/2004 9:31 AM Eastern Standard Time Message-id: On 10 Nov 2004 00:26:11 GMT, (JAXAshby) wrote: HEAVY kellets (25# each, and often two or three on a rode) are sometimes used to overcome the inherent dangers of an all chain rode, at least up to 35+ knots of wind, then chain and nylon is used. =================================== How many kellets, and how much nylon rode, do they use on a supertanker? Or the QE2? |
#37
|
|||
|
|||
I was right, you don't know the difference between nylon and polypropylene. Are you
really claiming nylon fails after stretching 4%? Why do you think NE Ropes says nylon 3-strand has "high elongation"? Here's the link again. Nylon 3-strand: 15% working elongation at 15% tensile strength. (OK, maybe 14%) http://www.neropes.com/techdata/3strand.pdf "JAXAshby" wrote in message ... jeffies, go read the damned thing. then read it again, and again and again. then if you STILL don't understand what it says, go look at plaited rope vs elongation, and THEN look at springy mountain climbing rope. 4 frickin' %, jeffies. get your wife to explain it to you. From: "Jeff Morris" Date: 11/10/2004 8:17 PM Eastern Standard Time Message-id: Read what, jaxie? The chart is very clear that the "working elongation" of nylon is up to 25%. Are you confusing "working elongation" with "destructive deformation"? Or perhaps you don't know the difference between nylon and polypropylene. Are you really claiming the nylon 3-strand is destroyed when its stretched over 4%? And you expect anyone to believe that you've ever been on a boat? "JAXAshby" wrote in message ... jeffies, go READ it again, this time let your wife explain it to you. what did you say your degree was in again? From: "Jeff Morris" Date: 11/10/2004 8:53 AM Eastern Standard Time Message-id: You seem to be having serious comprehension problems, jaxie. Time for another refill of meds. The chart in the New England Ropes brochure is quite clear, at least for anyone with a 4th grade education. They don't bother to mention elongation below 4%. The chart shows "working elongation" of over 20% for filament nylon 3-strand. The terms "destructive" and "deformation" are never mentioned. There is some feeling that after a major stress, perhaps over 25% of tensile strength, nylon rode should be replaced. This not a problem for a snubber, which can be considered sacrificial. This makes a good case for downgrading a primary rode and replacing it after a major blow. "JAXAshby" wrote in message ... jeffies, are you a lying sack of squat, or just too stupid to read your own cites? 4%, dood, your cite states, just like I said. Unless, of course, *you* don't know what destructive elongation is. What did you say your degree is in? we would like to hear you say it again. From: "Jeff Morris" Date: 11/9/2004 8:35 PM Eastern Standard Time Message-id: Yet another topic where jaxie can show his ignorance. NE Ropes says at 15% of breaking strength elongation is 15%. Marlow has similar numbers. But what would they know? http://www.neropes.com/techdata/3strand.pdf One can debate whether 15% of tensile strength is a proper safety factor, but for a snubber its not that critical. This works out to snubbers in the range of 30 to 60 feet. Personally, the need to rig snubbers was one of the issues that led me to stop using all-chain and go to a mixed chain/nylon rode. "JAXAshby" wrote in message ... ten foot of stretch on standard twisted nylon is about 150' to 250' of nylon, except under line breaking conditions. From: "Jeff Morris" Date: 11/7/2004 4:55 PM Eastern Standard Time Message-id: Even more important than the "droop" is the limited (almost non-existent) extension available to an all chain system. What its really needed is enough nylon to allow for 5 or 10 feet, or more, of stretch. "Jim Donohue" wrote in message news:rUtjd.90348$bk1.52418@fed1read05.. . "Amgine" wrote in message om... "Jim Donohue" wrote in message news:X2Uid.82404$bk1.80735@fed1read05... The problems is that above 35 knots of wind or so you have a straight rode. Uhm, maybe for your boat. In fact, just last weekend I was anchored out in 30 gusting 45 and neither chain+rope rode was bar-taut. On the other hand, I was wishing I had a bit more chain on both because I didn't have quite enough out for the weather (7:1 on a 7.5kg Bruce, and 5:1 on a 25lb. CQR) as I'd anchored 8 hours before the peak of the blow. To get a reasonable amount of shock absorption with all-chain, use a chain hook on about 30-40' of light nylon laid line and veer out a few more feet of chain. You'll get all the spring you want, but if there's much fetch you don't want too slack a chain to save your bows from a beating. I've never used either a kellet or buoy, but I'd like to experiment with both. Who has used which? Amgine http://wiki.saewyc.net/ See Complete Book of Anchoring and Mooring by Hinz page 113. On the ABYC hypothetical power boat of 45 feet and 15 foot beam the cantenary has 1 foot of "droop"per 100 feet of rode at 30 knots and 0 feet at 40 knots. If your boat is smaller and has a smaller section it may be a little higher. Hinz advocates the use of chain riding stoppers for all chain boats. He points out that all chain rodes are very good at parting or destroying something in high winds. They are also sufficiently noisey in high wind conditions to make sleep difficult. Jim Donohue |
#38
|
|||
|
|||
JAXAshby wrote: no, of course not. Those with 4x layer aluminum foil helmets are having sex with small furry animals. From: otnmbrd Date: 11/10/2004 9:32 PM Eastern Standard Time Message-id: .net Not always JAXAshby wrote: They use their hats when a blow is expected. They put them on and leave. Simple. If you don't understand that metaphor, think "searoom" Typical response, considering your highly limited experience and knowledge. otn |
#39
|
|||
|
|||
Steve,
I have read much of but not the entire thread (life to live...), but the other putative benefit of a buoy in the rode is that the bow of the boat won't be subjected to such violent forces as it pitches up and down in waves. The rode as attached to the boat is closer to horizontal, so doesn't jerk the boat down so hard on every rising wave as when the rode as attached to the boat is more vertical. So I've read!! ==== Charles T. Low www.boatdocking.com ==== "Steve Smith" wrote in message om... Hi all ... surprised to see recommended that a mooring-type buoy be used rather than attaching some other flotation to the intact anchor chain (one more link to go wrong). |
#40
|
|||
|
|||
jeffies, stay tied to the dock. again. you are lost to this universe. still.
this subject is way beyond you. as always. From: "Jeff Morris" Date: 11/10/2004 9:45 PM Eastern Standard Time Message-id: I was right, you don't know the difference between nylon and polypropylene. Are you really claiming nylon fails after stretching 4%? Why do you think NE Ropes says nylon 3-strand has "high elongation"? Here's the link again. Nylon 3-strand: 15% working elongation at 15% tensile strength. (OK, maybe 14%) http://www.neropes.com/techdata/3strand.pdf "JAXAshby" wrote in message ... jeffies, go read the damned thing. then read it again, and again and again. then if you STILL don't understand what it says, go look at plaited rope vs elongation, and THEN look at springy mountain climbing rope. 4 frickin' %, jeffies. get your wife to explain it to you. From: "Jeff Morris" Date: 11/10/2004 8:17 PM Eastern Standard Time Message-id: Read what, jaxie? The chart is very clear that the "working elongation" of nylon is up to 25%. Are you confusing "working elongation" with "destructive deformation"? Or perhaps you don't know the difference between nylon and polypropylene. Are you really claiming the nylon 3-strand is destroyed when its stretched over 4%? And you expect anyone to believe that you've ever been on a boat? "JAXAshby" wrote in message ... jeffies, go READ it again, this time let your wife explain it to you. what did you say your degree was in again? From: "Jeff Morris" Date: 11/10/2004 8:53 AM Eastern Standard Time Message-id: You seem to be having serious comprehension problems, jaxie. Time for another refill of meds. The chart in the New England Ropes brochure is quite clear, at least for anyone with a 4th grade education. They don't bother to mention elongation below 4%. The chart shows "working elongation" of over 20% for filament nylon 3-strand. The terms "destructive" and "deformation" are never mentioned. There is some feeling that after a major stress, perhaps over 25% of tensile strength, nylon rode should be replaced. This not a problem for a snubber, which can be considered sacrificial. This makes a good case for downgrading a primary rode and replacing it after a major blow. "JAXAshby" wrote in message ... jeffies, are you a lying sack of squat, or just too stupid to read your own cites? 4%, dood, your cite states, just like I said. Unless, of course, *you* don't know what destructive elongation is. What did you say your degree is in? we would like to hear you say it again. From: "Jeff Morris" Date: 11/9/2004 8:35 PM Eastern Standard Time Message-id: Yet another topic where jaxie can show his ignorance. NE Ropes says at 15% of breaking strength elongation is 15%. Marlow has similar numbers. But what would they know? http://www.neropes.com/techdata/3strand.pdf One can debate whether 15% of tensile strength is a proper safety factor, but for a snubber its not that critical. This works out to snubbers in the range of 30 to 60 feet. Personally, the need to rig snubbers was one of the issues that led me to stop using all-chain and go to a mixed chain/nylon rode. "JAXAshby" wrote in message ... ten foot of stretch on standard twisted nylon is about 150' to 250' of nylon, except under line breaking conditions. From: "Jeff Morris" Date: 11/7/2004 4:55 PM Eastern Standard Time Message-id: Even more important than the "droop" is the limited (almost non-existent) extension available to an all chain system. What its really needed is enough nylon to allow for 5 or 10 feet, or more, of stretch. "Jim Donohue" wrote in message news:rUtjd.90348$bk1.52418@fed1read05. .. "Amgine" wrote in message om... "Jim Donohue" wrote in message news:X2Uid.82404$bk1.80735@fed1read05... The problems is that above 35 knots of wind or so you have a straight rode. Uhm, maybe for your boat. In fact, just last weekend I was anchored out in 30 gusting 45 and neither chain+rope rode was bar-taut. On the other hand, I was wishing I had a bit more chain on both because I didn't have quite enough out for the weather (7:1 on a 7.5kg Bruce, and 5:1 on a 25lb. CQR) as I'd anchored 8 hours before the peak of the blow. To get a reasonable amount of shock absorption with all-chain, use a chain hook on about 30-40' of light nylon laid line and veer out a few more feet of chain. You'll get all the spring you want, but if there's much fetch you don't want too slack a chain to save your bows from a beating. I've never used either a kellet or buoy, but I'd like to experiment with both. Who has used which? Amgine http://wiki.saewyc.net/ See Complete Book of Anchoring and Mooring by Hinz page 113. On the ABYC hypothetical power boat of 45 feet and 15 foot beam the cantenary has 1 foot of "droop"per 100 feet of rode at 30 knots and 0 feet at 40 knots. If your boat is smaller and has a smaller section it may be a little higher. Hinz advocates the use of chain riding stoppers for all chain boats. He points out that all chain rodes are very good at parting or destroying something in high winds. They are also sufficiently noisey in high wind conditions to make sleep difficult. Jim Donohue |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
Great memory tool for Cardinal buoys | General | |||
anchoring techniques | ASA | |||
marathon boot key harbour anchoring | Cruising |