Dennis said exactly what I was thinking. I can't think of any time when VMG
shouldn't be the metric. Most boats have polars that are flat or concave
between 170 and 190. As I understand it this is likely because the boat has
more wetted surface area when it is flat in the water. Regardless o
That’s pretty amazing!
Joel
On Fri, Apr 5, 2024 at 8:11 PM Dreuge via CnC-List
wrote:
> Hi,
>
> Just for the fun of it, I entered the text of your email into ChatGPT4.
>
>
> You:
> I have a set of polars for my C&C 34+ (below), but I am unsure of how to
> interpret the downwind data. There i
Hi,
Just for the fun of it, I entered the text of your email into ChatGPT4.
You:
I have a set of polars for my C&C 34+ (below), but I am unsure of how to
interpret the downwind data. There is no information I have found on how the
angles were determined. I am interested in best angles for
Actually, 3 miles might be a bit short. Excuse the tech analysis but if
one assumes you sail 0.5 miles from the rhumb line between the upwind and
downwind marks and the arbitrary waypoint is only 3 miles away, then 0.5/3
is 0.1667 the sine of which equates to an angle of about 9.5 degrees. That
w
Purely arbitrary. 3-5 miles would probably work.
--
Dennis C.
Touche' 35-1 #83
Mandeville, LA
On Fri, Apr 5, 2024 at 4:33 PM Matthew Wolford via CnC-List <
cnc-list@cnc-list.com> wrote:
> Thanks, Dennis. How did you arrive at 10 miles.
Sent from my iPhone
>
> > On Apr 5, 2024, at 5:31 PM, Den
Thanks, Dennis. How did you arrive at 10 miles.
Sent from my iPhone
> On Apr 5, 2024, at 5:31 PM, Dennis C. via CnC-List
> wrote:
>
>
> Personally, I think sailing to polars can be challenging. I prefer to use
> VMG. VMG rules for windward/leeward race courses! Bear with me on this.
>
Personally, I think sailing to polars can be challenging. I prefer to
use VMG. VMG rules for windward/leeward race courses! Bear with me on
this.
First, a couple of definitions used by Touche's Nexus instrument system.
Velocity - speed and course
VMG - velocity made good wind based. The vel
On Fri, Apr 5, 2024 at 2:44 PM Bill Coleman wrote:
> I anguish over this nearly every race, and one thing I can tell you is
> that whichever choice you decide, you will wish you did the other!
>
> Bill Coleman
> Erie, PA
>
>
>
> On Fri, Apr 5, 2024 at 1:48 PM David Knecht via CnC-List <
> cnc-lis
