Comments on: Leaks via Mast http://setsail.com/leaks-via-mast/ A New Paradigm for Cruising Thu, 09 Feb 2012 04:58:42 +0000 hourly 1 http://wordpress.org/?v=3.2.1 By: Steve Dashew http://setsail.com/leaks-via-mast/comment-page-1/#comment-259 Steve Dashew Mon, 01 Jun 2009 07:56:46 +0000 http://setsail.com/?p=1330#comment-259 Robert: Internal mast dam can be made from anything, but we usually use aluminum and glue it in place. The underdeck external sealing ring which accumulates leakage from the mast boot drains back into the mast through weep holes on each side. Robert:
Internal mast dam can be made from anything, but we usually use aluminum and glue it in place. The underdeck external sealing ring which accumulates leakage from the mast boot drains back into the mast through weep holes on each side.

]]> By: Robert Middlestead http://setsail.com/leaks-via-mast/comment-page-1/#comment-257 Robert Middlestead Sun, 31 May 2009 19:13:43 +0000 http://setsail.com/?p=1330#comment-257 Thanks Steve , my boat is an aluminum Roberts 39 , heavily built . Mast section is also heavier than usual so I will examine it to see if I can do this without pulling the mast . BTW what material do you place inside the mast as the dam ? Would there also be a weep hole for the water to escape ? BTW you may be interested to know I use the exact same Ameron paint system as yours on the bottom . 12 years now and still looks good . I may need another copy of Offshore Cruising . Mine seems to have grown legs . Thanks Steve , my boat is an aluminum Roberts 39 , heavily built . Mast section is also heavier than usual so I will examine
it to see if I can do this without pulling the mast . BTW what material do you place inside the mast as the dam ? Would there
also be a weep hole for the water to escape ?
BTW you may be interested to know I use the exact same Ameron paint system as yours on the bottom . 12 years now and still
looks good .
I may need another copy of Offshore Cruising . Mine seems to have grown legs .

]]> By: Steve Dashew http://setsail.com/leaks-via-mast/comment-page-1/#comment-255 Steve Dashew Sun, 31 May 2009 07:02:34 +0000 http://setsail.com/?p=1330#comment-255 Robert: Access ports into the base of the mast are not hard to do. There are minimal bending loads just above the deck, so you just have to deal with compression. Depending on the loads, and the amount of metal in your mast section, you may or may not need a doubler plate to deal with the weakening created by the access port. Any cut outs should be minimal in size, oriented vertically, with softly radiused corners (not right angle cuts!). Older extrusions tend to be heavier and more easily dealt with, sometimes sans doubler plates. There are details of the through the deck sealing system in our Offshore Cruising Encyclopedia. Robert:

Access ports into the base of the mast are not hard to do. There are minimal bending loads just above the deck, so you just have to deal with compression. Depending on the loads, and the amount of metal in your mast section, you may or may not need a doubler plate to deal with the weakening created by the access port.
Any cut outs should be minimal in size, oriented vertically, with softly radiused corners (not right angle cuts!).
Older extrusions tend to be heavier and more easily dealt with, sometimes sans doubler plates.
There are details of the through the deck sealing system in our Offshore Cruising Encyclopedia.

]]> By: Robert Middlestead http://setsail.com/leaks-via-mast/comment-page-1/#comment-254 Robert Middlestead Sun, 31 May 2009 01:21:37 +0000 http://setsail.com/?p=1330#comment-254 Hi Steve I have this exact issue on the boat I own . Does having a trap door on the mast side weaken the mast ? Were you suggesting retro fitting a trapdoor on an existing mast already in a boat ? If possible this would simplify things hugely . Are details of this available anywhere ? Like the new look site . Robert Hi Steve
I have this exact issue on the boat I own . Does having a trap door on the mast side weaken the mast ? Were you suggesting
retro fitting a trapdoor on an existing mast already in a boat ? If possible this would simplify things hugely . Are details of this available anywhere ? Like the new look site .
Robert

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