[Public-List] Mast Rake

[Lawrence Morris via Public-List]

The plumb bob is a reference.  Just be careful that big uncle frank is not standing in the cockpit at the time or on the bow. 

The best method is to measure the back stay with the measuring tape hoisted with main halyard.  I don't remember the measurement, but I am sure it is on the website somewhere.  George, help!!!!



Larry 

Sent from my iPad

> On Feb 14, 2016, at 10:01 AM, John Birch via Public-List <public-list at lists.alberg30.org> wrote:
> 
> 90 degrees to the water. Hang the loose main halyard down, sometimes a light weight is required to get it to act like a plumb bob. It should not be hanging aft of the mast. If it is, that is rake. The more it hangs aft of the mast, the more rake. The more rake, the more load being put on the aft part of the mast step which is not particularly well supported as it is not over the mast beam.
> 
> Cheers,
> 
> JB
> 
> Re:
> 
> I remember our A-30 had this problem (KC-544) until we started tuning our rig like the Chesapeake racers. Mast vertical, no rake, or virtually no rake. That took the loading off the deck at the back of the mast foot, which is not supported particularly well by the Aluminium deck beam, putting most of the downward force under the front of the mast step directly over the deck beam.
> 
> Problem solved. Our decks were dry with no delam. It was a simple compression issue on the back of the step.
> 
> Hope that is a help.
> 
> Cheers from Western Lake Ontario, y'all
> 
> JB
> 
> 
> ----- Original Message ----- From: "Anders Bro via Public-List" <public-list at lists.alberg30.org>
> To: "Greg Bover" <gregbover at cbfisk.com>; "Alberg 30 Public List -- open to all" <public-list at lists.alberg30.org>
> Sent: Sunday, February 14, 2016 8:46 AM
> Subject: Re: [Public-List] Mast Rake
> 
> 
>> Now why didn't I think of that? (I guess I just don't think?)
>> Thanks,
>> Anders
>> 
>> Sent from my iPhone
>> 
>>> On Feb 14, 2016, at 8:31 AM, Greg Bover via Public-List <public-list at lists.alberg30.org> wrote:
>>> 
>>> Use your main halyard as a plumb bob.
>>> 
>>>> I was wondering if someone would clarify for me what "vertical" means on a
>>> sailboat which doesn't have any reference lines (except perhaps the vague
>>> plane of the waterline). If you are setting the mast rake wrt the waterline,
>>> how do you assess this angle (since it is difficult to see the waterline
>>> from the deck where a person is making the adjustments). Maybe Instead you
>>> establish this angle wrt the lowers? (splitting the angle?) Or maybe on a
>>> calm day afar with a level while the boat is afloat? Or maybe just trial and
>>> error???
>>> 
>>> 
>>> 
>>> 
>>> 
>>> Greg Bover
>>> A-30 #114
>>> PENSIVE FLYER
>>> Gloucester
>>> 
>>> 
>>> 
>>> 
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