SailNet Community - Reply to Topic
Thread: About masts Reply to Thread
Send Trackbacks to (Separate multiple URLs with spaces) :
Post Icons
You may choose an icon for your message from the following list:

Register Now

In order to be able to post messages on the SailNet Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

  Additional Options
Miscellaneous Options

Click here to view the posting rules you are bound to when clicking the
'Submit Reply' button below

  Topic Review (Newest First)
03-14-2008 07:36 AM
sailingdog 1) The elongated holes are called halyard slots and usually have a cast fitting put into them to protect the line from chafe and help it lead fair. Most masts aren't sealed, so will let the water out at the base. This is often a cause of wet bilges on keel stepped mast boats.

2) Most aluminum masts have a cast or machined piece at the top that holds the windex, anchor lights and masthead sheaves. This piece also is where the tangs for the shrouds and stays connects. It should be held in place by two or more bolts.
03-14-2008 05:54 AM
About masts

A couple of questions....

I'm continuing repairs/refurbishment on my 34ft locally built (mainly been doing electrics) and have now got around to looking at the mast. Aluminium, deck stepped.

1. It has elongated holes in the sides about 3ft from deck for the halyards. What usually happens to rainwater or heavy seas when they go into these holes? Does the water finish up in the bilges (running down inside the compression post) or should there be some other hole in the mast just above deck level to drain the water out again?

2. I've never been to the top of a mast, but this is coming up very soon. Some repairs are needed - coax cable, wiring for steaming, spreader and anchor lights, conduit put in etc. So question is - how are aluminium masts normally finished off at the top? I assume they have some sort of cap which is either welded or bolted on to keep out weather etc. I'm just interested in any info about the general practices of boat builders when finishing off mast tops. Welding, bolting, whatever they felt like on the day...?

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

For the best viewing experience please update your browser to Google Chrome