[Public-list] Mast out of column

[PHILLIP SPAR]

Mike,

The main beam appears to be sound.  It has had two aluminum plates bolted on either side, which I think are retrofits, but the guy I bought the boat from said they were original.  The forward cabin doors had been removed from the boat when I bought it, but I can tell from the starboard locker door that the main bulkhead has shifted downward in relation to the salon bulkhead.  This seems to have happend slowly over the years, because it does not change, even when I have the mast unstepped.  There are no signs of a depression in the deck from the outside of the boat.  

Phil
----- Original Message ----
From: Mike Lehman <sail_505 at hotmail.com>
To: public-list at alberg30.org
Sent: Tuesday, October 24, 2006 9:22:08 AM
Subject: Re: [Public-list] Mast out of column


Philip,

What is the conditionof your main beam? Can you close the door to the 
forward cabin? Does the deck have a depression behind the mast?



Mike Lehman
~~~_/)_/)~~_/)~~~




----Original Message Follows----
From: Christos Katehis <ckatehis at handsonsailing.us>
Reply-To: Alberg 30 Public List -- open to all <public-list at alberg30.org>
To: Alberg 30 Public List -- open to all <public-list at alberg30.org>
Subject: Re: [Public-list] Mast out of column
Date: Tue, 24 Oct 2006 04:14:17 -0700 (PDT)

Philip,

This situation resembles an unbalanced system. The causes are endless, 
therefore everyone could be right! The rig has to be tuned properly and the 
(proper sails for your wind conditions) have to be trimmed properly.

My explanation might not have the magic answer but the best way to 
troubleshoot is to start from the basics.

Chris
Kasia #383

PHILLIP SPAR <ptsparr at verizon.net> wrote: Hello,

This is my first posting on this list.  I own a 1966 Alberg 30, hull 172 I 
think, but can't remember off the top of my head.  I have noticed that when 
I am sailing upwind in stong winds the top of the mast appears to bow 
forward quite a bit.  I believe the center if the mast is moving back making 
it appear that way.  My major concern with this is that the mast appears to 
be moving out of column, which I have read can lead to mast failure. I have 
tried to correct the problem by tightening my forward lowers and backstay, 
but it doesn't seem to have any affect.   I first have to admit that I have 
alway just tuned my rig by feel, but I have gotten the second opinion of 
several people that have more experience tuning rigs than I have, and their 
opinions were that my wire tensions were pretty close to what they should 
be.  One person suggested that it could be because I don't tension the luff 
of my main properly( I don't have a cunningham, I just hoist the main untill 
it lifts
  the boom on its track).  They said in stronger winds this causes the main 
to have too much power, and could be causing the problem.  I'm not sure if I 
am making some very basic mistake, or if its a characteristic of the 
Alberg's rig.  I would appreciate any advice.

Philip
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