[Public-list] #2

[John Birch]

Additional,
Suggest telling sail make to account for 8-12" head stay sag, 12" more 
likely,  cut sail fairly flat, go either tri or bi radial. Suggest putting 
an adjustable backstay on. With adjustables suggest running a tight light 
line down the centre line from pushpit to pulpit, mark the mast where the 
line intersects the mast and then apply backstay tension until the line 
moves away from the mark. Then mark the backstay tensioner somehow with 
paint or marker or whatever because that is the maximum the backstay can be 
tensioned without bending the boat - adding more tension will achieve 
nothing except over stressing the boat.

Your table:
0-14 full main, full #1.
15-18 Full #1, reefed main
18-22 #2, Full main - bladed out, max outhaul or first reef depending on 
weather helm - the latter might work better
23-28 #2, Double Reefed main
Over 28, #3, reefed main.

Just my 2 Cdn cents,
Best of luck.
Cheers,
JB

----- Original Message ----- 
From: "John Birch" <Sunstone at cogeco.ca>
To: "Alberg 30 Public List -- open to all" <public-list at alberg30.org>
Sent: Thursday, October 12, 2006 9:15 AM
Subject: Re: [Public-list] #2


> I'd go heavier on the cloth. 7oz min and full hoist with less hollow - 
> think
> I'd want the clew at the top of the lifeline and no higher if racing.
>
> Just my thoughts.
>
> Cheers,
> John
>
> ----- Original Message ----- 
> From: "J Bergquist" <jbergqui at gmail.com>
> To: "Alberg 30 Public List -- open to all" <public-list at alberg30.org>;
> "Alberg 30 Racing" <racing-list at alberg30.org>
> Sent: Thursday, October 12, 2006 9:11 AM
> Subject: [Public-list] #2
>
>
>> Past Association Commodore Bob Kirk was kind enough to give me his old 
>> #2.
>> I
>> measured it last night with a friend in the middle of my street and the
>> dimensions I found are as follows:
>>
>> Luff 31'4" with a 3'4" wire pendant at the top
>> Foot 14' 11.5"
>> Leech 30' 4"
>> LP 14' 2.25" (this makes it a 135% sail)
>> Height of LP 4' 8.75"
>>
>> This sail was very old and I did not have tackle to stretch it really
>> hard,
>> so we were just doing that by hand on my driveway. It says 'Ulmer" which
>> apparently is UK before they were UK.
>>
>> There is a lot of leech hollow.
>>
>> I was surprised at the short luff. This seems strange to me for a #2. I
>> expected the sail to be full hoist (luff dimension of at least 34 ft). I
>> would be interested in hearing people's thoughts on these measurements -
>> whether they are good numbers to shoot for, or whether they are too big 
>> or
>> too small (particularly LP, foot dimension, and luff length).
>>
>> There was kind of a strange seaming pattern. One seam ran from clew to
>> luff,
>> ending a few feet above LP. Below this seam, panel seams ran vertically
>> (more or less parallel to the luff). Above this seam, panel seams were
>> cross
>> cut (more or less parallel to the foot).
>>
>> I have gotten concrete sail quotes from UK, North, and Sail Rite. The 
>> Sail
>> Rite guy assures me that if I build one of his sails it will be just as
>> good
>> as a brand name sail. My thought is not only will I save some money, but 
>> I
>> will also get to learn how to do canvaswork which would enable me to do 
>> my
>> own sail, cover, and upholstery repairs in the future.
>>
>> All the quotes seem to be built around cloth weight of 6.5 Oz to 7 Oz. 
>> Any
>> thoughts on that?
>>
>> I appreciate y'alls patience and input on this. Sorry to be so dense. I
>> just
>> want to be an informed customer rather than just asking the sailmaker to
>> figure everythign out for me. Since I am kind of an idiot when it comes 
>> to
>> sailmaking, I am probably asking things that some of you think are silly.
>> Again, preciate your patience.
>>
>> Kind regards,
>>
>> J Bergquist
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