[Alberg30] Positive Stability Range

[Christos Katehis]

The forestay length is the "I" measurement of the sail plan which is 36'.

Kasia #383

-----Original Message-----
From: public-list-bounces at alberg30.org
[mailto:public-list-bounces at alberg30.org]On Behalf Of Alfredo
Sent: Wednesday, March 05, 2003 7:59 AM
To: public-list at alberg30.org
Subject: Re: [Alberg30] Positive Stability Range



 Thanks everyone.
I'm reading about storm sails(Coles' Heavy weather Sailing). It suggest the
Trysail to be no more than a third of the area of the main. In our case 73
sq feet. And the Storm Jib about 5% of forestay lenght sqared. Any idea
about the forestay lenght?
Thanks again.
Alfredo
 George Dinwiddie <gdinwiddie at alberg30.org> wrote: Alfredo wrote:
> Greetings,
>
> Does anyone happen to know the positive stability range of the Alberg
> 30?

Back in 1994, Jack Hornor estimated the positive stability range to a
bit under 120 degrees. Judging from the graph he gave out, I'd say
about 118 degrees.

> Also, I know the total working canvas area of our boats. But, what's
> the area of just the main?

The sailplan (http://www.alberg30.org/boat/A30sailplan.jpg) shows a
figure of 221 sq. ft. for the main. The fore triangle is 189 sq. ft.

- George


--
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Hope your road is a long one. George Dinwiddie
May there be many summer mornings when, gdinwiddie at alberg30.org
with what pleasure, what joy, http://www.Alberg30.org
you enter harbors you're seeing for the first time;
from 'Ithaka' by C.P. Cavafy
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