[Alberg30] Mast Rake - Part II

[Bill Blevins]

Sound logical. I may give that a try this weekend.

The other think is that the backstay may have just been cut too long or the
turnbuckle is oversized for the length so shortening that may actually move
the top back so it's under pressure.

After pondering this for two weeks now, I think most of my "bend" is because
the forward lowers are pulling the middle forward vs. the backstay pulling
the top back.

Bill Blevins
"Sabrina" #158

--


On 7/30/03 9:42 AM, "John Birch" <Sunstone at cogeco.ca> wrote:

> An old trick I heard years ago from a sailmaker was to run a very light
> line - twine will do - from the pulpit to the pushpit and tie it tight under
> tension. Where the line intersects with the mast draw a line and have
> someone tighten the backstay until the string line moves away from the drawn
> line - at that point stop tightening the backstay as all you are doing is
> bending the boat.
> Mark your backstay tensioner or turnbuckle threads at that point and that is
> the maximum load you should put on the backstay - as any more will simply
> bend the boat.
> 
> Just a suggestion.
> 
> Cheers,
> 
> John
> 
> ----- Original Message -----
> From: "Michael" <dickdurk at intercom.net>
> To: "Alberg 30 public list" <public-list at alberg30.org>
> Sent: Wednesday, July 30, 2003 9:11 AM
> Subject: Re: [Alberg30] Mast Rake - Part II
> 
> 
>> I don't get why your numbers for backstay/forestay are 100lbs. out two of
>> three times. there is nothing else holding the mast up, except the lowers,
>> and your forward ones are the ones with tension.
>> 
>> Maybe the best thing is when you get performance you like, sight up the
>> forestay and see what amount of sag you are carrying. Sailmakers build a
>> certain amount of sag into their construction.
>> 
>> Michael
>> #220
>> 
>> 
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