[Public-List] Rigging

[Jeffrey]

Thanks Mike,

I'll compare what I have to this chart. I'm thinking that my largest
sail is a #2.

-Jeff

On Wed, Jul 21, 2010 at 10:32 AM, Meinhold, Michael J.
<MICHAEL.J.MEINHOLD at saic.com> wrote:
> Here is a table with the Luff Perpendicular worked out for each of the
> jibs shown in the A30 Sail Plan. The Chesapeake Bay One Design rules
> specify these numbers as max dimensions for the Working Jib and the #1,
> but say only that the #2 must  be smaller in every dimension than the
> #1.  The J shown in the Sail Plan is 10 feet 5 inches.
>
>          Luff   Foot Leech   LP    LP/J%
> Working  30.00  10.25 25.75  8.52  0.82
> #2       32.00  15.00 30.25 14.06  1.35
> #1       34.00  19.00 33.50 18.09  1.74
>
> LP can be found directly from the three sides of a triangle as :
> LP = sqrt ( foot^2 - ( (leech^2-foot^2-luff^2)/(2*luff) )^2 )
>
> My wife greatly prefers the #2 and though she hasn't seen it in action,
> my new Working Jib will be her favorite.
>
> Mike
> Rinn Duin #272
> -----Original Message-----
> From: public-list-bounces at lists.alberg30.org
> [mailto:public-list-bounces at lists.alberg30.org] On Behalf Of Michael
> Grosh
> Sent: Tuesday, July 20, 2010 10:54 PM
> To: Alberg 30 Public List -- open to all
> Subject: Re: [Public-List] Rigging
>
> If I remember correctly, some sailmaker at a seminar had worked out the
> largest genoa ratio on the Alberg (by class rules) is 163%.
> I had a full luff, raised foot #2 (I forget the parameter I used for J,
> but fairly big, as I also have a working jib) made for use as a primary
> cruising sail, and it works great for that. The wife tends to go into
> conniptions, just on principle, I think, whenever she sees the #1 come
> out.
>
> MichaelGrosh
> #220
>
> On Jul 20, 2010 1:35 PM, <jirving104 at aol.com> wrote:
>
>
> When I bought my Alberg 30, it had a small self tending jib only.  I
> assume it has always been that way.  I now sail with loose footed jibs,
> 80%, 140% and 170%.  I didn't change the rig any.  I'm curious if A-30's
> with the small self tending jibs had smaller stays.
> John Irving
>
> Scotch Bonnet, #634
>
>
>
>
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-- 
Jeffrey Fongemie

 1279726398.0