[C38] Flying an asymmetrical
Joseph Launie
jlaunie at cox.net
Thu Jan 24 01:32:55 EST 2008
Steve,
The advantage of an A chute over a conventional one is more than
just sailing short handed. The A chute lets you sail with a lot less
skill and muscle on the foredeck. We have two conventional chutes and
never use them for that reason. With 60 boats racing on wednesday nite
in a small town like Santa Barbara, skilled crew is mighty scarce. Joe
/Macavity
S. Orton wrote:
> Hi Phil,
>
> There is an old saying: "dead down wind is dead slow", unless the
> pressure is 14 kts and up. A look at the Cat38 polars shows an
> optimum run at 8 kts of true wind and 106 degrees relative angle
> gives a boat speed of 5.1 kts. A dead down wind run with the above
> conditions will give 3.9 knots. At less wind velocity (4-5 kts) down
> wind, your spin may collapse further diminishing the boat speed. I
> haven't done the VMG math on the above situation, but I suspect our
> polars are correct. I personally believe the only advantage of an
> asym is sailing short handed for the Cat38. For a sprit boat (J-120)
> that is a different story. I do use a code 0 (which is a small asym
> of 785 sq ft.) in 4 -7 kts of true wind at 70 -110 degrees relative angle.
>
> Steve Orton
> Santa Susanna
> Oceanside,CA
>
> ----- Original Message -----
> *From:* eyriepg at comcast.net <mailto:eyriepg at comcast.net>
> *To:* Catalina 38 list <mailto:Listserve at catalina38.org>
> *Sent:* Wednesday, January 23, 2008 4:10 PM
> *Subject:* [C38] Flying an asymmetrical
>
> I crewed on a 2002 Beneteau 411 in Everett, WA last Sunday. It
> had a new 150% genoa and a new roller furling main. It has a
> reputation of correcting last so I was curious about what they
> were doing wrong. I have to say that, with its shoal wing keel,
> it was a slug in 6-7 knots of wind. Also, the crew didn't really
> know how to sail the boat.
>
> The skipper has had difficulty jybing the sail outside the
> forestay so they rigged it so they jybe it like a genoa inside the
> forestay. It seemed to work OK but they had to furl the genoa
> before unsocking the asym. My real question concerns the efficacy
> of going wing and wing with the asym and the main. The skipper
> claimed that he had the same speed going dead downwind this way
> compared to a heading with a relative wind angle of 150 with both
> sail on the same side of the boat. I have never read anything
> about sailing wing and wing with an asym and main. Do you have
> any experience doing this?
>
> Phil Gay
> C38 049 Que Linda
> Everett, WA
>
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