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West Wight Potter Mailing List maintainer
dfarrell@ridgecrest.ca.us
List hosted by www.tscnet.com
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HI Judy,
Thanks for the info. By the way, your website is great. My guess is
that over time I will duplicate all of improvements you have made to
Redwing.
Do you think it is worthwhile to have a rudder made as described by Eric
Johnson? Can it be further modified to be the spring-loaded kic up rudder
you sketched out?
Also, in your discussion of DM5 masts and Columbia Pacific masts you
note your conversation with Mr. Dwyer of Dwyer Mast Co. I was wondering if
you had had a similiar conversation with Columbia Pacific? I read the
disclaimer, but was still not clear if it is okay to have an adjustable
backstay. Jerry Barrilleaux in his outline for a backstay kit, recommends
not using an adjuster as it might cause a permanent bend. Wouldn't I want
it to be adjustable so as to tailor the rigging according to the conditions?
AND, lastly (for now) what about running backstays. I have read in a
couple of places about using them. For one, there was a May 1988 "letter to
the editor" from Ralph Saylor out of Lemon Grove, CA who wrote about
installing running stays on his Potter "Wavewalloper". Seems like a good
idea!!
Thanks,
Alan
P-19 "Molly Fay"
East Coaster
Greg Yu if you are listening thanks for that bushel of Potter articles.
Also Dennis, sorry about the lack of subject line in my last memo. One
of these days it will sink in.
inal Message -----
From: Judith Franklin Blumhorst, DC <DrJudyB@pacbell.net>
To: potter <wwpotter@tscnet.com>
Sent: Saturday, February 26, 2000 9:54 AM
Subject: Theoretical rig design 101
> - - - - - - - - - - - - - - - - - - - - - - - - - - -
> West Wight Potter Mailing List maintainer
> dfarrell@ridgecrest.ca.us
> List hosted by www.tscnet.com
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> Hi Alan,
>
> The thread on the TSBB was about theoretical performance advantages of
> various rig designs. My comment wasn't terribly relevant to Potter 19's.
>
> Newer boats designed purely for racing and setting speed records have very
> "high aspect" sails - very tall mainsails with rounded heads and a big
> roach. The jibs are also very tall and shorter from luff to clew, with a
> small overlap. That's the best design for developing higher lift to drag
> ratios.
>
> If you're dsigning a brand new racing boat with some rules limiting total
> sail area, the faster rig will be very tall compared to the older racing
> boats of a decade or two ago. The America's Cup boats look like that.
>
> It's not relevant to sailing the P19 - unless you plan to redesign
replace
> the whole rig for racing (not likely -- the boats a cruiser, not a
racer!).
> The main and various jibs for the P19 are just fine as they are and well
> desiigned for cruising in a wide variety of wind conditions.
>
> One easier-t0-read book on the design of sails is Tom Whidden's _ARt and
> Science of Sails_, if you want the theory behind all this.
>
> Fair winds, Judy B
>
> -----Original Message-----
> From: Marilyn Dimson-Doyle [mailto:mddoyle@mediaone.net]
> Sent: Saturday, February 26, 2000 5:45 AM
> To: potter
> Subject: Unidentified subject!
>
>
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> West Wight Potter Mailing List maintainer
> dfarrell@ridgecrest.ca.us
> List hosted by www.tscnet.com
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> I just read a few messages on "trailer sailor message board" regarding
> sail size; main versus jib. I have been wondering about this since I
> recently read in one text the author thought it was better to have a
larger
> mainsail than foresail. Judy B. had recommended a book to read on the
> subject but I am overwhelmed with a stack of reading as it is. Can anyone
> give me a quick response regarding increasing mainsail size on the Potter
> and its effects?
> Thanks
> Alan
> P-19, "Molly Fay"
> East Coaster
>
This archive was generated by hypermail 2b29 : Tue Feb 29 2000 - 03:27:10 PST