Jonathan, Thanks so much! My TackTick only gives me apparent because I was too cheap to pay $500 to buy the adapter to connect it to my plotter, so this is great stuff!
Joel On Thu, Sep 20, 2012 at 10:39 AM, Indigo <ind...@thethomsons.us> wrote: > Joel, > > I have a copy of the polars for the 35MKIII and created the attached > simplified table from those numbers. I do not have any sophisticated > technology on board, (my wind instrument is DataMarine) so do not have the > ability to get True wind angle and speed. > > > > The only thing in the table that I am not sure of is the “Sail” for a beam > reach. I must have got the Sail from somewhere I think, but in practice I > am not sure I can carry my symmetrical spinnaker where apparent wind in > anything forward) > > > > I have taken these tables and laminated them and tape them in the cockpit > > > > Jonathan > > Indigo – 35MKIII > > Southport CT > > > ------------------------------ > > *From:* cnc-list-boun...@cnc-list.com [mailto: > cnc-list-boun...@cnc-list.com] *On Behalf Of *Joel Aronson > *Sent:* Thursday, September 20, 2012 10:10 AM > > *To:* cnc-list@cnc-list.com > *Subject:* Re: Stus-List final spinnaker questions > > > > You guys are the best! > > Yes my plotter can tell me VMG, but it seems to indicate that there is a > pretty wind range where angle does not matter, at least with the jib, so > the reference points are also a big help. If its blowing around 10 I may > just use the .75 oz chute. Both are original but "low mileage". If its a > reaching leg, I'll use the asymm and avoid the drama of using the pole. > > > > Joel > > On Thu, Sep 20, 2012 at 9:27 AM, dwight veinot < > dwightvei...@hfx.eastlink.ca> wrote: > > Joel > > According to the polar diagrams I have for a 35 MKII the optimum VMG on the > run in 10 kts true wind is at an angle of 148 degrees, at 12 kts it is at > 162 degrees, at 16 kts it is at 173 degrees and at 20 kts it is 174 > degrees. > This agrees with Dennis's reply but gives you some numbers. These numbers > are based on a 153% jib but the optimum angles might be quite similar with > the spinnaker. > > For the 35 MKII the VMG at 20 kts and 174 degrees is 7.65, at 16 kts and > 173 > degrees it is 6.90, at 12 kts and 162 degrees it is 5.82 and at 10 kts > and148 degrees it is 5.08. These wind levels are all true wind. > > I expect numbers for the 35 MKIII might be quite similar. > > If the kite is newer and not picked I would say you could probably use the > 1/2 oz up to 12 kts true, maybe higher, as long as you sail at 162 degrees > or above to 180 ...the 1/2 oz probably may not last long if you try to > reach > closer at 12 kts true wind. The size and cut of the spinnaker are just as > important as the cloth weight but I assume a 1/2 oz or light air kite is > 180% and tri radial cut. My lightest kite was a 180%, 3/4 oz so I am just > making an educated guess about the 1/2 oz sail. > > Dwight Veinot > C&C 35 MKII, Alianna > Head of St. Margaret's Bay, NS > > > -----Original Message----- > From: cnc-list-boun...@cnc-list.com [mailto:cnc-list-boun...@cnc-list.com] > On Behalf Of Joel Aronson > Sent: September 20, 2012 8:55 AM > To: cnc-list@cnc-list.com > Subject: Stus-List final spinnaker questions > > 2 questions: > > What is the maximum wind speed for a 1/2 oz chute? > What is the ideal apparent wind angle on a downwind leg to get to the > leeward mark on a 35/3? 140 degrees 150 degrees 160 degrees? Assuming > about a 10 knot wind and calm seas. > > Joel > 35/3 > The Office > Annapolis > Sent from my iPad > > _______________________________________________ > This List is provided by the C&C Photo Album > http://www.cncphotoalbum.com > CnC-List@cnc-list.com > > ----- > No virus found in this message. > Checked by AVG - www.avg.com > Version: 2012.0.2221 / Virus Database: 2441/5277 - Release Date: 09/19/12 > > > > _______________________________________________ > This List is provided by the C&C Photo Album > http://www.cncphotoalbum.com > CnC-List@cnc-list.com > > > > > > -- > Joel > 301 541 8551 > > _______________________________________________ > This List is provided by the C&C Photo Album > http://www.cncphotoalbum.com > CnC-List@cnc-list.com > > -- Joel 301 541 8551
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