Hi John, Curious what model boat and where are you sailing to justify four reefs.
Chuck 1990 C&C 34R on Chesapeake Bay > On March 23, 2019 at 11:40 AM john sandford via CnC-List > <cnc-list@cnc-list.com> wrote: > > > I have 4 reefs, and calculated the heights based on wind speed pressure, > max load, and hence sail area. > > Viz. Wind Pressure in Pounds per Sq. Ft. = .0053 x (Wind Speed Knots > squared) > > Works fine up to 40 knots, (when the 4th goes in) haven’t tested it > further yet. > > > > From: Josh Muckley [mailto:muckl...@gmail.com] > Sent: March-22-19 9:52 PM > To: cnc-list@cnc-list.com > Subject: Re: Stus-List Second Reef Point on 33 MKII > > > > Not specific to 33 mkII but it is my experience that most slab reef > points are equal distance from one another and the boom. About 1/4 of the > height of the sail per slab. > > > > If you find that the boat is uncontrollable in heavy winds with the first > reef then either a second reef or no mainsail at all would be in order. Your > rigger/sail maker should be able to give some ideas. If you have or plan to > have a bat-car system, or a strong track system the placement of the second > reef will have to take into consideration the stack height. Penents/dog > bones may be required to reach the reef horn. Boom height when reefed is > going to be a consideration for the clew ring placement. Again all questions > which the sailmaker should be discussing with you. > > > > Josh Muckley > > S/V Sea Hawk > > 1989 C&C 37+ > > Solomons, MD > > > > > > > > > > > > On Fri, Mar 22, 2019, 6:33 PM Lee Rosenbaum via CnC-List > <cnc-list@cnc-list.com mailto:cnc-list@cnc-list.com > wrote: > > > > > > I have a 33MKII and all my mainsails have a single reef point. > > > > I do have two reefing lines in my boom so I can accommodate a > > second reef and am thinking of having one installed. > > > > > > > > My questions are: > > > > 1. Do other 33MKII have as second reef? > > 2. Are they beneficial? > > 3. Where on the mainsail is the upper reef? > > > > > > > > I race on Lake Michigan and we have had some nasty winds the last > > two years. > > > > > > > > Thanks, > > > > Lee Rosenbaum > > > > Kookaburra > > > > 1985 33MKII > > > > Kenosha, WI > > > > > > > > [Image removed by sender.] > > http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient > > > > Virus-free. www.avg.com > > http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient > > > > _______________________________________________ > > > > Thanks everyone for supporting this list with your contributions. > > Each and every one is greatly appreciated. If you want to support the list > > - use PayPal to send contribution -- https://www.paypal.me/stumurray > > > > > > _______________________________________________ > > Thanks everyone for supporting this list with your contributions. Each > and every one is greatly appreciated. If you want to support the list - use > PayPal to send contribution -- https://www.paypal.me/stumurray > >
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