|Topic Review (Newest First)|
|07-02-2011 02:33 PM|
Originally Posted by chef2sail View Post
|07-02-2011 05:10 AM|
Haleakula like Abracadabra can easily sail inside the 30 degrees our winded or wind instruments are set for, especially with the right weight distribution and sea condition. At 12-15 knots with the centerboard dropped the J , Sabre, and Farr seem like the only vessels able to keep as close an angle as we can. The C&C 35 are a race class unto themselves on the Great Lakes. Our pointing angles have frustrated many a larger Bene, Tartan, or Catalina in our club beer can races
|07-01-2011 11:35 PM|
Hmmm... Abracadabra's Windex is set to 30 degrees and we can put the pointer right on the flags on either tack, if not slightly under, but she's not sailing as efficiently as we'd like on those angles, so we tend not to do it unless we're just playing or we miscalculated and we need to do it to make the next mark.
She's much happier at 35-40 degrees. (Seat-of-the-pants estimate. Someday we'll have one of those fancy schmancy, new-fangled electronic wind instrument thingys .)
|07-01-2011 10:29 PM|
Originally Posted by J36ZT View Post
In one viewing I've now seen two posts by different folks referring to a J36. There is one in my area that hits all the regattas and rarely misses the podium. The owner is a very good sailor. The "old" J36 will give modern boats with longer waterlines a very serious run for their money in nearly every point of sail and frequently finishes ahead of boats that owe her time!!!
|07-01-2011 01:37 PM|
|GeorgeB||There are tacking angles and then there are tacking angles. Are you talking the tacking angle between max VMG on either board? If so, the number one improvement you can make is to get the clews of both the main and jib as close to the boat’s centerline as possible. For the main that means upping the traveler so the boom is on centerline. Boats without travelers or small, ineffectual ones will have larger tacking angles. The jib clew also needs to be brought in. The leech should be a fist length or less off the spreader tip or shroud. Fractional boats, with the ability to sheet their jibs inside the shrouds are at an distinct advantage. Barber haulers were developed to bring the clew in as far as possible. Adjust the fairlead block to straighten the jibs leech to match the main’s. Too often, I’ve seen jibs with too much twist. A too large genoa will move the center of effort aft on the boat making leeway more of an issue. A 150 is great off the wind, but is not much of a “beater”. This “loaded up” trim will put a lot more heel in the boat, resulting in a narrower steering grove. Putting crew on the rail helps. As mentioned before, big chop and swells kills the angle because you are moving the boat around in order to keep the VMG up. In the “for what it’s worth department, the tacking angle on my Catalina 34 goes from 90 to a hundred degrees depending upon sail selection, crew size, and wind/water conditions. I believe that this is typical of cruising boats. Racer/cruisers should be about ten degrees narrower.|
|07-01-2011 01:11 PM|
|SJ34||Boat is happy going to weather at 35deg.|
|07-01-2011 12:18 PM|
Is this like your Jenneau 37? With the keel or the centerboard?
Jeanneau SO 379 for sale on AllBoats.com
Not a racer, but should tack through about 100 true I'd think. roller-furl high-clew jib as in the photos doesn't help much, and if you have one of those mast-furling mainsails that doesn't help either.
But 120 true, or even more, is way too much, at least in normal breeze without too much chop. It's either the sails themselves, or how they're led/trimmed, or how you're steering her. Hard to tell without more factual input or maybe a photo of the boat close-hauled.
Generally, as you've heard above, most "weatherly" boats (sloop rig) will point 45 and make good maybe 50; absolute hotshot upwind racers (think AC boats before they were trimarans) might do a little better than 35, and the average cruiser maybe 50 and make good 55. If, on a decent sloop, you can't tack within 100-110, something's wrong.
|07-01-2011 11:47 AM|
Just less than 60-degrees (28-29 degrees off the apparent wind); that was with crew in 12-15 knots of wind on flat waters. I haven't thought to actually measure the angle on the GPS (heat of the moment and all). I regularly tack 30-35 degrees off the wind.
There are many factors that come into play in determining how high a boat can point. Besides re-designing the boat, spending lots of money on new sails and gear, and having lots of "rail meat" in the right place; anything that causes drag and slows the boat down is really all you can control.
...Yep, narrow pointing angles are what J36s were made for. Well, that and speed.
J/36 "Zero Tolerance"
|07-01-2011 10:13 AM|
|zz4gta||120*? Might want to tune the old rig, add some outhaul tension, move the jib cars back one, and put on more backstay. Make sure the boom is on center. 120* would take you forever to get to windward.|
|07-01-2011 09:19 AM|
|tweitz||I think Barry L makes an excellent point. One can sail and tack at 45 degrees to the apparent wind, but if you were to look at the course on the chartplotter, it would appear to be a far more obtuse angle. Not to be obtuse about it, a large part of that is leeway, where you lose the most when closest to the wind. Since I have a lifting keel, it is really apparent when I am too lazy to lower the keel, and the difference in leeway is dramatic. When people talk about how close to the wind they sail, they are usually talking apparent wind, and not actual.|
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