I still need to review the geometry, but I believe that when the bearing to the mark is equal to 180-TWA, one has reached the downwind layline. I also found that when the masthead is pointing at the mark, that also indicates the layline has been reached.
Bob > On 10/06/2021 11:17 AM Jeff Nelson via CnC-List <cnc-list@cnc-list.com> > wrote: > > > Hmmm...Interesting question. > > So, Ed's answer was pretty good, I'll add a few thoughts here: > > AW isn't an ideal guide, True wind is what is needed so that you can keep > the angle to true wind to be constant on > either Gybe, assuming you know what the best angle is. > If you can find polar's for your boat, they will give you an idea of > ideal. > As Ed mentioned, VMG is your friend in determining what the best angle is > (especially if no polars are available). > You can experiment in different wind speeds to find a reasonably good > angle for windspeed and VMG. > > Here's a good article to get you thinking: > http://www.oceansail.co.uk/Articles/VMGArticle.php > > Hope this helps. > Jeff Nelson > Muir Caileag > C&C 30 549 > Armdale Yacht Club > > On 2021-10-06 12:02 p.m., Bob Mann via CnC-List wrote: > > > > I'm fairly new to flying a spinnaker. I did it last > weekend in a race and I believe I overstood the mark as we were sailing 110 > AW before the gybe and 85 AW heading directly to the mark. > > > > How does one determine when to gybe? > > > > Bob > > > > > > Thanks to all of the subscribers that contributed to the list to > > help with the costs involved. If you want to show your support to the list > > - use PayPal to send contribution -- https://www.paypal.me/stumurray > > Thanks - Stu > > > > > > > https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient > Virus-free. www.avast.com > https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient > Thanks to all of the subscribers that contributed to the list to help > with the costs involved. If you want to show your support to the list - use > PayPal to send contribution -- https://www.paypal.me/stumurray Thanks - Stu >
Thanks to all of the subscribers that contributed to the list to help with the costs involved. If you want to show your support to the list - use PayPal to send contribution -- https://www.paypal.me/stumurray Thanks - Stu
