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#1
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OK..Hoping for a bit of expert advice.
A few questions: 1. Will you point higher if you move your Jib forward by installing a bowspirt? 2. Can you point higher if you un-rake your mast a bit? Any tuning suggestion to get your boat to point higher? Joe |
#2
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Joe wrote:
OK..Hoping for a bit of expert advice. A few questions: 1. Will you point higher if you move your Jib forward by installing a bowspirt? Possibly, but not necessarily. It will add power to the rig by getting more air flow thru the slot, but it's most likely to hurt pointing IMHO. 2. Can you point higher if you un-rake your mast a bit? No, other way around. Rake the mast more to point higher. If the boom is scraping the transom, take out a tiny bit of rake ![]() Any tuning suggestion to get your boat to point higher? A bunch of little things can help, but the basics of pointing are designed into the boat with the rig & foil geometry. The jib sheet angles make a big difference. If you can bring the sheet lead in toward the centerline, making a narrower angle to the centerline of the boat, that helps. Most one-design classes restrict that adjustment for this reason (although there's always a point of diminished return, overdo it and the boat goes nowhere). You also want to get the jib sheet lead adjusted fore/aft so that it pulls down on the leach just the right amount to control twist of the sail. The jib luff should "break evenly" which means it should start luffing all up & down at once... not luff at the top first (move the lead forward) or the bottom (move the lead aft). Depending on the rig geomtery & the cut of the sail, the rig tension, especially on the forestay, helps pointing. Most boats point best with a tight, straight forestay. Try tightening first and see it that helps. Don't ignore the underwater foils either. You've goot what looks like an awesome rudder, is the centerboard in the same shape? And skill is a factor. You have to get the boat up to speed before you can point high. If you just aim the boat at a tight angle to the wind, the underwater foils will not have good flow, the boat will make more leeway, and the flow of air over the sails will not develop. There is a knack I have worked at learning for years, where you get the boat up to speed, then slowly pinch in the sails bit by bit without distrubing the flow, so that in the end you are going 99% as fast and pointing 5 degrees higher. Makes a big difference on a crowded race course. Coffee cup empty, time to go to work. Hope this helps. Fresh Breezes- Doug King |
#3
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![]() DSK wrote: Joe wrote: OK..Hoping for a bit of expert advice. A few questions: 1. Will you point higher if you move your Jib forward by installing a bowspirt? Possibly, but not necessarily. It will add power to the rig by getting more air flow thru the slot, but it's most likely to hurt pointing IMHO. 2. Can you point higher if you un-rake your mast a bit? No, other way around. Rake the mast more to point higher. If the boom is scraping the transom, take out a tiny bit of rake ![]() OK, I think I have my mast rake right, but perhaps to much curve... get a tiny flutter at times on the trailing edge. Any tuning suggestion to get your boat to point higher? A bunch of little things can help, but the basics of pointing are designed into the boat with the rig & foil geometry. The jib sheet angles make a big difference. If you can bring the sheet lead in toward the centerline, making a narrower angle to the centerline of the boat, that helps. Most one-design classes restrict that adjustment for this reason (although there's always a point of diminished return, overdo it and the boat goes nowhere). Got ya...since I'm not in any class of boats anything goes! You also want to get the jib sheet lead adjusted fore/aft so that it pulls down on the leach just the right amount to control twist of the sail. The jib luff should "break evenly" which means it should start luffing all up & down at once... not luff at the top first (move the lead forward) or the bottom (move the lead aft). Depending on the rig geomtery & the cut of the sail, the rig tension, especially on the forestay, helps pointing. Most boats point best with a tight, straight forestay. Try tightening first and see it that helps. That may be my biggest problem, might go to rod rigging, regardless I'm replacing the stays before next weeks races. Don't ignore the underwater foils either. You've goot what looks like an awesome rudder, is the centerboard in the same shape? It's a 1/4 inch thick SS board. You can pull it all the way up, and move the pivot point aft as you raise it. With it all the way down the leading edge is strait up and down. And skill is a factor. You have to get the boat up to speed before you can point high. If you just aim the boat at a tight angle to the wind, the underwater foils will not have good flow, the boat will make more leeway, and the flow of air over the sails will not develop. There is a knack I have worked at learning for years, where you get the boat up to speed, then slowly pinch in the sails bit by bit without distrubing the flow, so that in the end you are going 99% as fast and pointing 5 degrees higher. Makes a big difference on a crowded race course. Coffee cup empty, time to go to work. Hope this helps. Yelp..Thanks Fresh Breezes- Doug King joe |
#4
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![]() Joe wrote: Any tuning suggestion to get your boat to point higher? Center your mast. Rake it aft so the boat has helm in light air. Install an adjustable backstay. If your main is old and deep buy a new flat one. Less jib halyard tension. Put your wife and kids on the rail. Sail flat. |
#5
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Loco,
He has a pretty large Main and no back stay. I'm not sure if he is using "Jack Stays or not. Sounds like a need for a good Vang and a flatting reef. AND; Joe, learn you boat's best angle between footing and pointing. Remember that pointing alone isn't the fastest up wind technique http://community.webtv.net/tassail/ThomPage http://community.webtv.net/tassail/Pneuma |
#6
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![]() Ringmaster wrote: Joe wrote: Any tuning suggestion to get your boat to point higher? Center your mast. Rake it aft so the boat has helm in light air. Install an adjustable backstay. If your main is old and deep buy a new flat one. Less jib halyard tension. Put your wife and kids on the rail. Sail flat. For this boat Ringmaster http://community.webshots.com/photo/...3212926DdkPsY# Not this one http://community.webshots.com/photo/...63212926XhvvaU Joe |
#7
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![]() "Joe" wrote in message ups.com... OK..Hoping for a bit of expert advice. A few questions: 1. Will you point higher if you move your Jib forward by installing a bowspirt? 2. Can you point higher if you un-rake your mast a bit? No, but you would probably point higher if you un-stepped your mast. On a power boat, such as yours, the sails impede your progress to wind. Any tuning suggestion to get your boat to point higher? Get a proper sail boat!!! Regards Donal -- |
#8
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![]() Donal wrote: "Joe" wrote in message ups.com... OK..Hoping for a bit of expert advice. A few questions: 1. Will you point higher if you move your Jib forward by installing a bowspirt? 2. Can you point higher if you un-rake your mast a bit? No, but you would probably point higher if you un-stepped your mast. On a power boat, such as yours, the sails impede your progress to wind. Any tuning suggestion to get your boat to point higher? Get a proper sail boat!!! Regards Donal -- For this boat Donal http://community.webshots.com/photo/...3212926DdkPsY# Not this one http://community.webshots.com/photo/...63212926XhvvaU Did you do like the other Bent-a-toe sailor and buy a quality Kia too? Bennie's...the Kia of Sailboats Joe Reply » |
#9
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![]() "Joe" wrote in message oups.com... Donal wrote: "Joe" wrote in message ups.com... OK..Hoping for a bit of expert advice. A few questions: 1. Will you point higher if you move your Jib forward by installing a bowspirt? 2. Can you point higher if you un-rake your mast a bit? No, but you would probably point higher if you un-stepped your mast. On a power boat, such as yours, the sails impede your progress to wind. Any tuning suggestion to get your boat to point higher? Get a proper sail boat!!! Regards Donal -- For this boat Donal http://community.webshots.com/photo/...3212926DdkPsY# Not this one http://community.webshots.com/photo/...63212926XhvvaU ------------------------------------- Dead right, Joe!! One of those boats need wind, and one of them doesn't! I know which one that I would prefer to sail! ------------------------------- Did you do like the other Bent-a-toe sailor and buy a quality Kia too? You are beginning to sound like Bobsprit! Can't you come up with your own insults? Bennie's...the Kia of Sailboats I can adjust the rake of my mast. Tell us again where your backstays are attached to your mast!!! Your boat wasn't designed to sail. Regards Donal -- Joe Reply » |
#10
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![]() Donal wrote: "Joe" wrote in message oups.com... Donal wrote: "Joe" wrote in message ups.com... OK..Hoping for a bit of expert advice. A few questions: 1. Will you point higher if you move your Jib forward by installing a bowspirt? 2. Can you point higher if you un-rake your mast a bit? No, but you would probably point higher if you un-stepped your mast. On a power boat, such as yours, the sails impede your progress to wind. Any tuning suggestion to get your boat to point higher? Get a proper sail boat!!! Regards Donal -- For this boat Donal http://community.webshots.com/photo/...3212926DdkPsY# Not this one http://community.webshots.com/photo/...63212926XhvvaU ------------------------------------- Dead right, Joe!! One of those boats need wind, and one of them doesn't! I know which one that I would prefer to sail! I know which one you could handle somewhat safely ------------------------------- Did you do like the other Bent-a-toe sailor and buy a quality Kia too? You are beginning to sound like Bobsprit! Bobspirt is buying like you....Birds of a feather Can't you come up with your own insults? Cant you get thoses floor boards to stay down? Bennie's...the Kia of Sailboats I can adjust the rake of my mast. Tell us again where your backstays are attached to your mast!!! http://community.webshots.com/photo/...63212926LEPjVZ You can see them all yourself for the main mast...need a mizzen shot? Your boat wasn't designed to sail. True..It's a motor sailor, made for motor sailing. Did you use your Royal yachtmaster skills to physically derive that knowledge? Man you're soundling just like Bobspittle.... BTW RedCloud will out sail your french bleach bottle and my floorboards are solid as steel....in anything but light air. Tally Ho...Pip pip and all that, Joe Regards Donal -- |
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