[Alberg30] Positive Stability Range

Alfredo nj95gxe at yahoo.com
Wed Mar 5 07:59:06 PST 2003


 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


-- 
----------------------------------------------------------------------
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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