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#1
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Mainsail Controls
wrote in message
oups.com... "Capt. JG" wrote: I'm not sure I'd consider the cringles mainsheet control. They don't really contribute to it. Sure they do. If you're talking about shape controls, then they only affect the shape in a negative way. But they certainly control the main, they keep the reefed section bundled up & control it from blowing all over the place. Well, the only time I use the cringles is when I have my second reef in. For the first reef, they aren't used and the sail is unaffected. Downhaul.. as in using cunningham? Same thing for shape, but different controls. The hand brake or parking brake is different from the regular brake on your car, right? The cunningham is esentially a rule cheater. It provides a way to increase luff tension without pulling the sail outside the black bands. I guess if we're talking about racing... You're right, technically, that the backstay adjustments affect the mast directly, but the effect is to change the shape of the main (and jib I suppose). How about boom brake or jibe-preventer? :-) I'd consider that a "control line" but don't like them and have never used them on a boat I was skippering. If you can't avoid gybing, or keep control of the boom when gybing, then you need practice on the helm & sheet! OTOH for a long cruise with a windvane or autopilot, they are useful but in the way. They work great for any reasonable length of time... I wouldn't bother for just a few minutes, but the preventer is easy to rig and unrig, and is worth it in shifting wind. DSK -- "j" ganz @@ www.sailnow.com |
#2
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Mainsail Controls
The cunningham is esentially a rule cheater. It provides a way to
increase luff tension without pulling the sail outside the black bands. "Capt. JG" wrote: I guess if we're talking about racing... Or a sail that is cut so it has no room to increase luff tension- for example, if the head is at full hoist and the gooseneck is fixed. Luff tension is luff tension. If you can't get it by pulling the top tighter, then you have to pull the bottom... and if the bottom is fixed, then you need a cunningham. BTW a lot of new sails are made with the tack free to float up & down as tension is adjusted.... not fixed to the gooseneck. BTW 2 if you have a sail that need the cunningham pulled on in light air, then that sail is blown (or the luff boltrope has shrunk). How about boom brake or jibe-preventer? :-) I'd consider that a "control line" but don't like them and have never used them on a boat I was skippering. If you can't avoid gybing, or keep control of the boom when gybing, then you need practice on the helm & sheet! OTOH for a long cruise with a windvane or autopilot, they are useful but in the way. They work great for any reasonable length of time... I wouldn't bother for just a few minutes, but the preventer is easy to rig and unrig, and is worth it in shifting wind. So is PAYING ATTENTION I've known of two incidents where boats got in big trouble with a preventer rigged. One ended up gybing anyway, turning about 120 degrees and getting stuffed when the main went aback; the other narrowly missed getting run down by a large tow as the skipper tried to direct the crew how to unrig the preventer quickly so he could turn. Both cases were of course caused by inattention, not the preventer. But the preventer doesn't do anything a good helmsman can't do. The times I've sailed other people's boats with preventers rigged, it always seemed more in the way than helpful. DSK |
#4
posted to alt.sailing.asa
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Mainsail Controls
wrote in message
oups.com... The cunningham is esentially a rule cheater. It provides a way to increase luff tension without pulling the sail outside the black bands. "Capt. JG" wrote: I guess if we're talking about racing... Or a sail that is cut so it has no room to increase luff tension- for example, if the head is at full hoist and the gooseneck is fixed. Luff tension is luff tension. If you can't get it by pulling the top tighter, then you have to pull the bottom... and if the bottom is fixed, then you need a cunningham. BTW a lot of new sails are made with the tack free to float up & down as tension is adjusted.... not fixed to the gooseneck. BTW 2 if you have a sail that need the cunningham pulled on in light air, then that sail is blown (or the luff boltrope has shrunk). How about boom brake or jibe-preventer? :-) I'd consider that a "control line" but don't like them and have never used them on a boat I was skippering. If you can't avoid gybing, or keep control of the boom when gybing, then you need practice on the helm & sheet! OTOH for a long cruise with a windvane or autopilot, they are useful but in the way. They work great for any reasonable length of time... I wouldn't bother for just a few minutes, but the preventer is easy to rig and unrig, and is worth it in shifting wind. So is PAYING ATTENTION I agree that paying attention is the most important factor, but on downwind runs of an hour or so, a small mistake can translate into a big problem. The preventer is perfect for that. This is especially true when inexperienced people are at the helm, which is fairly routine if I'm teaching. I've known of two incidents where boats got in big trouble with a preventer rigged. One ended up gybing anyway, turning about 120 degrees and getting stuffed when the main went aback; the other narrowly missed getting run down by a large tow as the skipper tried to direct the crew how to unrig the preventer quickly so he could turn. Both cases were of course caused by inattention, not the preventer. But the preventer doesn't do anything a good helmsman can't do. I've seen this happen also... or similar anyway, but a preventer does do something even a good helmsman can't do... not require 100% focus for several days or hours. Even an excellent helmsman needs a pee break from time to time. The times I've sailed other people's boats with preventers rigged, it always seemed more in the way than helpful. DSK I would qualify that by saying "many times" instead of always. -- "j" ganz @@ www.sailnow.com |
#5
posted to alt.sailing.asa
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Mainsail Controls
"Capt. JG" wrote:
I've seen this happen also... or similar anyway, but a preventer does do something even a good helmsman can't do... not require 100% focus for several days or hours. Even an excellent helmsman needs a pee break from time to time. True. That's why it should *always* be school time when sailing. GIving other people practice and coaching; and getting coaching from others who have skills you want to develop, is one of the best parts of sailing IMHO. and it means that you should always have a relief helms- person. The times I've sailed other people's boats with preventers rigged, it always seemed more in the way than helpful. "Capt. JG" wrote: I would qualify that by saying "many times" instead of always. Agreed. I could also say "in my limited experience" since my experience has been limited to the times when it was more in the way DSK |
#6
posted to alt.sailing.asa
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Mainsail Controls
On Sep 28, 1:02 pm, "Capt. JG" wrote:
wrote in message I agree that paying attention is the most important factor, but on downwind runs of an hour or so, a small mistake can translate into a big problem. The preventer is perfect for that. This is especially true when inexperienced people are at the helm, which is fairly routine if I'm teaching. I've known of two incidents where boats got in big trouble with a preventer rigged. One ended up gybing anyway, turning about 120 degrees and getting stuffed when the main went aback; the other The times I've sailed other people's boats with preventers rigged, it always seemed more in the way than helpful. DSK I would qualify that by saying "many times" instead of always. -- "j" ganz Rigging a preventer to a winch that can be eased quickly is essential. I don't hold to the theory that it must be rigged from the end of the boom all the way to the bow. I take it from the main sheet bail on the boom to a bail or cleat on deck somewhere around the shrouds and back to a winch. A boom brake serves the purpose of preventing potentially fatal injuries caused by a madly swinging boom without the risk of forgetting to ease the preventer. A good sailor might be able to put his tiller down fast enough to slow the gybe, but one moments distraction might be fatal to a crew member. I remember the case of a guy named Vance who died front of his fiancee's eyes when a dramatic windshift near the Carquinez Straits bluffs gybed the boom across as he was returning from the foredeck. He was dead before he hit the water. A preventer or boom brake would have saved his life. |
#7
posted to alt.sailing.asa
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Mainsail Controls
In article . com,
Bart wrote: Rigging a preventer to a winch that can be eased quickly is essential. I don't hold to the theory that it must be rigged from the end of the boom all the way to the bow. I take it from the main sheet bail on the boom to a bail or cleat on deck somewhere around the shrouds and back to a winch. A boom brake serves the purpose of preventing potentially fatal injuries caused by a madly swinging boom without the risk of forgetting to ease the preventer. A good sailor might be able to put his tiller down fast enough to slow the gybe, but one moments distraction might be fatal to a crew member. Many vangs can be removed from the foot of mast and attached to the toerail. Works great. |
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