Mysterious Sheave on the Mast. - SailNet Community
LinkBack Thread Tools
post #1 of 2 Old 03-01-2011 Thread Starter
Junior Member
ClutchCargo's Avatar
Join Date: Mar 2011
Location: Melbourne, Australia
Posts: 5
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
Mysterious Sheave on the Mast.

Hi SN,

I've only just bought my yacht and am working my way through the rigging set-up. There was no user manual supplied with the boat .

I have been able to work out most of the rigging, but there is an odd sheave recessed into the port side of the mast just below the mast head, below the forestay on the forward side. There is a picture below.

I don't think it is a topping lift for the spinnaker pole; that sheave is centre just below the spreaders.

There are 4 sheaves at the base of the mast; main and jib halyards use 2 of these. I guess the spinnaker pole lift uses the 3rd (it's not threaded) and the mystery sheave uses the remaining one.\

Your thoughts or solutions would be appreciated!

Thanks, Mark.
Attached Thumbnails
mast top showing unknown port side block redux.jpg   mast top showing unknown port side block side view redux.jpg  
ClutchCargo is offline  
Quote Quick Reply Share with Facebook
Sponsored Links
post #2 of 2 Old 03-01-2011
Old as Dirt!
svHyLyte's Avatar
Join Date: Nov 2008
Location: Tampa Bay Area
Posts: 2,942
Thanks: 15
Thanked 130 Times in 123 Posts
Rep Power: 7
Exit block for a spinnaker halyard that extends to the block on the masthead crane.

"It is not so much for its beauty that the sea makes a claim upon men's hearts, as for that subtle something, that quality of air, that emanation from the waves, that so wonderfully renews a weary spirit."
svHyLyte is offline  
Quote Quick Reply Share with Facebook

Quick Reply

By choosing to post the reply above you agree to the rules you agreed to when joining Sailnet.
Click Here to view those rules.

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.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

Similar Threads
Thread Thread Starter Forum Replies Last Post
Lost an axle for a C&C 32 sheave, help! Kiltmadoc C & C 2 02-06-2011 09:38 PM
Masthead Sheave Replacement andantesail Pacific Seacraft 8 04-01-2010 06:35 AM
A mysterious mast question Slangevar Gear & Maintenance 5 04-08-2009 08:10 PM
mysterious green mast Karletto General Discussion (sailing related) 9 08-22-2008 12:57 AM
It's a Sheave, not a Pulley sailaway21 Gear & Maintenance 35 12-13-2007 12:52 PM

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
Trackbacks are On
Pingbacks are On
Refbacks are On

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