[Alberg30] Ballast

Gord Laco gord at transatmarine.com
Thu Mar 1 11:34:30 PST 2001


Thanks John,

With the help of Skene's Elements of Yacht Design I have determined that the
amount of lead I can get under the liner will be insignificant.  I'm going
to concentrate on the rig. (we already carry 100' 5/16 chain)

Thanks to all who responded.

Gord
----- Original Message -----
From: John Birch <Sunstone at idirect.com>
To: <public-list at alberg30.org>
Sent: Thursday, March 01, 2001 2:10 PM
Subject: Re: [Alberg30] Ballast


> Albergs will always be more tender - but in my opinion it is one of the
> boat's strengths as they roll with the punches reducing the shock and peak
> loading to rig, equipment and structures. The boats will not point as high
> as modern fins by a couple of degrees, but in high winds, one is usually
> footing to weather as pointing becomes impossible in any type of boat.
>
> As for adding ballast - why not carry extra chain instead over the keel -
> giving you something more useful when anchoring. The "problem", as you
> define it is much more related to form stability than ballasting. I
> seriously doubt on a 400 series boat that loading extra weight that high
up
> from the bottom of the keel will do much more than make the boat sit lower
> in the water and be slower in the lighter conditions. You won't get a
> meaningful improvement in the righting arm I suspect.
>
> The form stability of the Alberg is hull shape related and is what gives
the
> boat such a good roll capsize screening ratio as defined in The Desirable
> and Undesirable Characteristics of Offshore Yachts.
>
> A flat, bladed out main, and flatter headsail shapes will help
considerably
> in reducing unnecessary heeling due to poor sail shape. You might also
find
> the North Sails Racing Course/Seminar helpful - I did anyway. I hear the
> course is even better now. Hope this was a help.
>
> Cheers,
>
> John
>
>
> ----- Original Message -----
> From: <baileyje at voyager.net>
> To: <public-list at alberg30.org>
> Sent: Thursday, March 01, 2001 1:25 PM
> Subject: Re: [Alberg30] Ballast
>
>
> > I guess I'm not sure what you mean by tender.  I was told that the A30
> > was tender at first but then stiffend up when heeled a bit.  Now, I've
> > only sailed for two years, and I admit the first year I didn't know
> > what the word "reef" meant.  I sailed in some real "fun" conditions
> > with the rail under for minutes at a time.  I even got the combing wet
> > one time.  I don't remember thinking I was going over.  So, I consider
> > the A30 a stiff boat, even though she likes to heel at first.  By the
> > way, I've learned what the word "reef" means and it does make for any
> > easier ride, if not as fun.
> >
> > John Bailey
> > "Zevulun" #33>
> > This is a multi-part message in MIME format.
> > > > Hello Gang,
> > >
> > > As some of you may recall, I have moaned in the past about being a
> > little dissapointed at my A30's ability to carry sail in a blow.  I am
> > in the process of crunching numbers to determine the benefit of adding
> > lead ballast beneath my liner pan under the cabin sole.  Anybody else
> > gone down this road?
> > >
> > > Gord
> > > KC426 Surprise
> > >
> > >
> > >
> >
>
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> >
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