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Old 22-02-2012, 10:07   #1
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Question Regarding Mast

Hello all I have an Isomat mast. I am currently doing some varnish work and would like to get the below pictured piece done. There is some algea and other growth beneath the black plastic part I can not get to unless I remove it.

I am wondering is this just a protective covering or is is part of the supporting features of the mast? I would like to remove it temporarily to varnish beneath it.

Thanks for your help



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Old 22-02-2012, 10:39   #2
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Re: Question regarding mast

Here are the pictures typed in the code wrong

[IMG]http//www.fotographic.net/mast1.jpg[/IMG]

[IMG]http//www.fotographic.net/mast2.jpg[/IMG]
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Old 22-02-2012, 10:42   #3
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Re: Question regarding mast

[IMG]http//www.fotographic.net/mast1.jpg[/IMG]

[IMG]http//www.fotographic.net/mast1.jpg[/IMG]

Here are the pictures I posted the code wrong
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Old 22-02-2012, 11:33   #4
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Re: Question regarding mast

Is there supposed to be a picture attached?
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Old 22-02-2012, 11:46   #5
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Yea there are I thought I posted them in a reply. I put to many http in the IMg code. The piece in question i thin is the mast boot.
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Old 22-02-2012, 11:57   #6
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Re: Question regarding mast

Here are the pictures. I did this once not sure why they are not showing up. What I am interested in doing is removing the mast boot(I think that's what it is) and wondering if I can do so safely without any problems with mast support.

MOD can you remove my other two failed posts where I tried to Post pics?
Thanks




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Old 22-02-2012, 12:22   #7
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Re: Question regarding mast

Is the mast deck stepped? If not that collar should do nothing other that provide an attachment point for turning blocks.
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Old 22-02-2012, 12:41   #8
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Re: Question regarding mast

You can remove the mast boot for varnishing or just hanging about in the harbor. It needs to be in place if you are going sailing to keep the most from moving in the partners. Mast won't fall down while sailing but will flex and effect it's ability to remain in column if sailed with it removed. Doubt that you'll be able to remove the collar, howver. You'll probably just be able to lift it up a little because the sheave box won't let you.
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Old 10-03-2012, 19:24   #9
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Quote:
Originally Posted by Sailmonkey
Is the mast deck stepped? If not that collar should do nothing other that provide an attachment point for turning blocks.
Honestly I am
New to sailing and not sure if the mast is stepped or not? How can. I tell?
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Old 10-03-2012, 19:38   #10
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Re: Question Regarding Mast

Quote:
Originally Posted by Sovereigndreams View Post
Honestly I am
New to sailing and not sure if the mast is stepped or not? How can. I tell?
The mast is deck stepped if it is sitting on the deck
It's keel stepped if it passes through the deck and sits on the keel
A deck stepped mast will almost always have a supporting structure below it that passes from the deck to the keel.
If the mast is deck stepped it could be sitting on the piece that your are trying to pick up.
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Old 10-03-2012, 19:41   #11
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Re: Question Regarding Mast

Look beneath the deck where the mast goes. See a mast in the middle of the salon ? If not then it is deck stepped.

It looks deck stepped to me. A keel stepped mast would be unlikely to have electrical wires exiting above deck. Also I don't see a mast boot which indicates keel stepped. The boot is the white thing in delmarrey's pic.
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Old 10-03-2012, 19:46   #12
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Re: Question Regarding Mast

Quote:
Originally Posted by Sovereigndreams View Post
Originally Posted by Sailmonkey
Is the mast deck stepped? If not that collar should do nothing other that provide an attachment point for turning blocks.
.................................................. .................................................. .
Honestly I am
New to sailing and not sure if the mast is stepped or not? How can. I tell?
All masts are stepped unless off the boat.
Sailmonkey's quote is a set up like in the picture, a keel stepped mast. Masts can be either deck stepped or keel stepped. The collar allows the deck to rise and fall w/o affecting the mast, and keeps (most of) the water from passing thru.


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Old 13-03-2012, 17:36   #13
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Del I like your rigging set up coming off your mast.

My setup looks alot like yours I'll take a picture from down below and post it. In the meantime ill do a little more research on this subject.

Is there an advantage of keel vs deck stepped?

Below deck is a large round pole it has bolts that go trough the deck I believe you can see them in my first picture.

My impression was this pole went through the deck into the mast to help support I could be wrong but I have a hard time believing its just sitting on top of the deck.


Click image for larger version

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ID:	38680

I think I just attached an overview of the saloon ignore the mess I am stripping down all the teak.
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Old 13-03-2012, 17:50   #14
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Re: Question Regarding Mast

Your mast is deck stepped. That pole is just a load bearing device.

This means that removing the timber is a big production. I suggest stripping off the old varnish and leaving the timber to weather naturally. It will turn grey. If you don't like grey then color it with one of the outdoor timber oils.
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Old 13-03-2012, 18:17   #15
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Re: Question Regarding Mast

Ok, that's a deck stepped mast. the black doo dad you want to remove to varnish the wood is keeping the base of the mast in place. The only way to get at it is to pull the mast.
In the future if you do pull the mast......If I was in your shoes......I'd replace that wood with FR4 or similar material painted.
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