[Public-List] mast base location

[Gordon Laco]

Hi Roger - 

I think Pride would be doing well to sail within 120 degrees !!!

Ships of her time had sharply raked masts for strength as well as for
pointing  ability.  The shrouds are slightly shorter when they are raked
like hers are...when using vegetible fibre (hemp) stays and shrouds limiting
stretch by any means is worth while.

She is a great vessel!



On 5/6/09 11:59 AM, "Roger L. Kingsland" <r.kingsland at ksba.com> wrote:

> Not that we can do it on our boats, but I seem to recall learning a raked
> mast helps w/ upwind performance.  I "guest crewed" on the Pride of
> Baltimore (super duper raked masts) years ago from Erie, PA to Toronto and
> recall she could sail under 30 degrees off the wind (or does memory spawn
> exaggeration).  
> 
> 
> Roger Kingsland, Managing Partner
> Kingsland Scott Bauer Associates
> 
> 
> 
> KSBA 
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> -----Original Message-----
> From: public-list-bounces at lists.alberg30.org
> [mailto:public-list-bounces at lists.alberg30.org] On Behalf Of Don Campbell
> Sent: Wednesday, May 06, 2009 11:20 AM
> To: Alberg 30 Public List -- open to all
> Subject: Re: [Public-List] mast base location
> 
> It is not only just about the mast over the beam but also about the center
> of effort (COE) over the center of lateral resistance. If you have more than
> about 4 degrees of weather helm, then you want the COE as far forward as
> possible. If you have old or blown out sails, the COE will have moved aft.
> Don #528
> 
> Roger L. Kingsland wrote:
>> Albergers,
>> 
>> I looked at my old photos and found that funny pot metal base on which
>> the mast sits was mounted as far forward as possible.  Does anyone
>> have any recommendations as to where the mast base should go?  The
>> slots are only about 2" long so I guess it doesn't matter that much.
>> 
>> Thanks,
>> 
>> Roger 148
>> 
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