[Public-list] A30 Yawl Plans

[John Birch]

By having the mast further aft there would be less weather helm, with a 
taller rig as Carl Alberg wanted better light air performance - Alberg 
wanted an external lead keel. Kurt Hansen, the Builder said no as the boat 
was built to tight cost constraints, Hanson wanted a full mast head rig - 
read the Association's history on all that. Iron was Hansen's choice, lead 
Alberg's - we know who won.

While Hansen made some changes as builder that Alberg was less that happy 
with, as Alberg was later quoted to say "it seems to have worked out 
alright." With over 700 built, I think that is a bit of an understatement 
; )

Cheers,
John


----- Original Message ----- 
From: "Roger L Kingsland" <r.kingsland at ksba.com>
To: "Alberg 30 Public List -- open to all" <public-list at alberg30.org>
Sent: Thursday, July 27, 2006 11:22 AM
Subject: Re: [Public-list] A30 Yawl Plans


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
>  ----------------------------------------------------------------------
>
>
>
> _______________________________________________
> These businesses support your Association:
> http://www.alberg30.org/store/A30supporters.html
> Please support them.
> _______________________________________________
> Public-list mailing list
> Public-list at alberg30.org
> http://alberg30.org/mailman/listinfo/public-list
>
>
>


_______________________________________________
These businesses support your Association:
http://www.alberg30.org/store/A30supporters.html
Please support them.
_______________________________________________
Public-list mailing list
Public-list at alberg30.org
http://alberg30.org/mailman/listinfo/public-list 


 1154017288.0