Dwight, what would happen is that you put up the kite and head up, bearing off as you accelerate. As you get going in those light airs, the wind moves forward so it's entirely likely that by the time you're doing hull speed, the apparent wind direction is 60 degrees, even though the true WD may be well aft of the beam.
In this regard, our boats are just like the AC foiling cats...or maybe that's pushing the analogy a bit. Andy C&C 40 Peregrine On Tue, Dec 10, 2013 at 9:43 AM, dwight <[email protected]> wrote: > Rick > > > > You wrote: “It is pretty cool to be making hull speed in a 7 or 8 knot > (true) wind at an angle of 60 degrees apparent” > > > > Correct me if I am wrong please; I may have misunderstood something: but > for those conditions I think that the the true wind angle is actually aft > of beam by about 20-25 degrees…hardly a close reach, more like a broad > reach… I don’t think the boat is going to weather under those conditions so > the asym should work OK > > > ------------------------------ > > *From:* CnC-List [mailto:[email protected]] *On Behalf Of *Rick > Brass > *Sent:* December 10, 2013 10:02 AM > > *To:* [email protected] > *Subject:* Re: Stus-List Bowsprit/assym > > > > Dwight; > > > > Like Tom, I use a cruising A sail for my regular spinnaker. It is 1.5 oz, > so I use it up to about 10 knots of wind. More wind than that and I am > taking a chance of shredding the relatively light material. Going to > weather in 10 knots true at 60 degrees apparent brings the apparent wind up > to 16-17 knots, and that puts a lot of strees on the sail. > > > > The A sail can be used over a range of about 50 degrees apparent to about > 140 degrees apparent. It does really well on a close reach – to the point > that I stopped carrying my light #1 as being unnecessary. At above 10 > knots true, I would be using my regular #1 anyway. A genoa is, indeed, a > better choice than the A sail if you need to go close to the wind, but from > a close reach to a broad reach, the A sail is much faster if the wind is > not too strong. It is pretty cool to be making hull speed in a 7 or 8 knot > (true) wind at an angle of 60 degrees apparent. > > > > The A sail falls on its butt when you run deep. I have, on occasion, used > the spin pole to pull the tack of the sail out around the headstay, but I > can’t say I’ve ever been really happy with the results. I’m certainly no > faster than any boat with a symmetrical spinnaker that can run at a deeper > angle, and on a more direct line, than I can. > > > > I had bought a pretty decent used symmetrical spin from Dennis C that I > used in races once or twice each year, in events that I knew would involve > deep running. But I only put it on the boat for use at those races, and > took it off for the rest of the time. The symmetrical spin was lost in a > garage fire this fall. I may look for another used sail in the spring, but > I’m not sure. The A sail is better for all around use and for cruising. > > > > > > Rick Brass > > *Imzadi* -1976 C&C 38 mk1 > > *la Belle Aurore* -1975 C&C 25 mk1 > > Washington, NC > > > > > > > > *From:* CnC-List [mailto:[email protected]] *On Behalf Of * > dwight > *Sent:* Monday, December 09, 2013 2:14 PM > *To:* [email protected] > *Subject:* Re: Stus-List Bowsprit/assym > > > > Tom > > > > You wrote > > > > when the wind is on the beam or forward of it, the sail will having you > moving through the fleet > > > > I think this depends on wind strength…maybe true in very light air but I > believe all things otherwise being equal a good light #1 would be hard to > roll over in anything but the lightest winds and the deepest wind angles > > > > > > > > > ------------------------------ > > *From:* CnC-List > [mailto:[email protected]<[email protected]>] > *On Behalf Of *TOM VINCENT > *Sent:* December 9, 2013 2:53 PM > *To:* C&C Forum > *Subject:* Stus-List Bowsprit/assym > > > > It should be very obvious to the group, there are advantages and > disadvantages to flying an asymmetrical shute. I have been racing with an > asym for 5 years and have learned that when the next mark is dead down wind > - you need to fall off and gybe. The boats with the regular shutes will eat > you alive if you try to go it their way. I have done wing to wing on > several occasions when the mark was fairly close. My asymmetrical was cut > by JSI in Florida and they did a great job, it has a 180 percent girth > with 1090 sq. ft.. One of the advantages is when the wind is on the beam or > forward of it, the sail will having you moving through the fleet. I have > the tack running to the anchor bow roller with a snap shackle, I can haul > in the tack very tight when pointing. When cruising short handed, I have an > ATN sock. > > Tom > Frolic II, 36' cb > Chesapeake City, MD > > > ------------------------------ > > No virus found in this message. > Checked by AVG - www.avg.com > Version: 2012.0.2247 / Virus Database: 3658/6403 - Release Date: 12/09/13 > ------------------------------ > > No virus found in this message. > Checked by AVG - www.avg.com > Version: 2012.0.2247 / Virus Database: 3658/6406 - Release Date: 12/10/13 > > > _______________________________________________ > This List is provided by the C&C Photo Album > http://www.cncphotoalbum.com > [email protected] > > -- Andrew Burton 61 W Narragansett Ave Newport, RI USA 02840 http://sites.google.com/site/andrewburtonyachtservices/ phone +401 965 5260
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