[Public-list] A30 Yawl Plans

[Roger L Kingsland]

Let me see if I can get this (George wrote - "Actually, the story is that 
Carl Alberg designed a 7/8's rig boat, like the Triton, and Whitby decided 
to switch to masthead.  Since the molds were already made, the location of 
the mast couldn't be moved to accommodate that change and the rig had to be 
shortened, instead.") straight.  With 7/8ths rig, mast would have been 
higher (about an 1/8th or 4-5') and, I assume, boom shorter to keep sail 
area about the same which would move center of effort forward, maybe point 
higher?  Or, same boom and more sail equals, more weight way high up, heal 
more, reef sooner, faster in light air, center of effort a little further 
aft?  Would shorter rig have anything to do with decision to use cast iron 
instead of lead down low?

Roger Kingsland
Managing Partner
KSBA Architects
N40°- 27.83'  W79°- 57.99'

(412) 252-1500 x101 office
(412) 779-5101 cell
----- Original Message ----- 
From: "George Dinwiddie" <gdinwiddie at alberg30.org>
To: "Alberg 30 Public List -- open to all" <public-list at alberg30.org>
Sent: Wednesday, July 26, 2006 8:08 PM
Subject: Re: [Public-list] A30 Yawl Plans


> Roger L Kingsland wrote:
>> I recall reading that Alberg wanted to place the A30 mast 2 feet aft of
>> current location but Witby didn't, resulting in a short(er) masthead rig
>> with low aspect main
>
> Actually, the story is that Carl Alberg designed a 7/8's rig boat, like
> the Triton, and Whitby decided to switch to masthead.  Since the molds
> were already made, the location of the mast couldn't be moved to
> accommodate that change and the rig had to be shortened, instead.
>
>
> -- 
>  ----------------------------------------------------------------------
>   When I remember bygone days                         George Dinwiddie
>   I think how evening follows morn;            gdinwiddie at alberg30.org
>   So many I loved were not yet dead,           http://www.Alberg30.org
>   So many I love were not yet born.
>                'The Middle' by Ogden Nash
>  ----------------------------------------------------------------------
>
>
>
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