Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 04-05-2009, 22:21   #1
Registered User
 
wsvoboda's Avatar

Join Date: Jun 2006
Location: Ventura, Ca
Boat: 1967 Angleman Sea Spirit
Posts: 62
Images: 2
Rig Tension for Wooden Boats

I have a wooden Ketch with spruce mast and both are keel stepped. What is the propper tension for the upper and lower shrouds and forstay and backstays? Thanks in advance
__________________

__________________
Give up your barabonds and pride.
wsvoboda is offline   Reply With Quote
Old 06-05-2009, 21:42   #2
Moderator Emeritus
 
Ex-Calif's Avatar

Cruisers Forum Supporter

Join Date: May 2007
Location: Singapore
Boat: Maxi 77 - Relax Lah!
Posts: 11,514
Images: 4
I have moved this post to the rigging section to see if we can get one of our many experts to give it a shot.
__________________

__________________
Relax Lah! is For Sale <--- Click
Click--> Custom CF Google Search or CF Rules
You're gonna need a bigger boat... - Martin Brody
Ex-Calif is offline   Reply With Quote
Old 07-05-2009, 05:46   #3
Registered User
 
Hampus's Avatar

Join Date: May 2008
Location: Sweden
Boat: Between boats
Posts: 463
Images: 6
Send a message via MSN to Hampus
Just bought a boat with wooden masts. First experience with wooden masts, except on the gaff rigged boats I've sailed. For aluminium masts, as well as for wooden masts, you should never ever be able to see slack in the shrouds on the leeward side. You should ofcaurse be able to feel the slack, but no matter how hard you sail her, slack shouldn't be visible. If you see the shrouds hang and swing from side to side, they are too loose. Still, tension on a wooden rig should be a little less than for the same type of aluminium rig. Don't worry though. You won't be able to break anything by using regular hand tools.
__________________
http://adventureswithsyingeborg.blogspot.com/
On the way back to Sweden.
Hampus is offline   Reply With Quote
Old 07-05-2009, 06:19   #4
Moderator Emeritus
 
GordMay's Avatar

Join Date: Mar 2003
Location: Thunder Bay, Ontario - 48-29N x 89-20W
Boat: (Cruiser Living On Dirt)
Posts: 31,586
Images: 240
Typically, tension the cap shrouds and back-stay to about 15-20% of the breaking strength of the wire.

See also:

http://www.riggingandsails.com/pdf/selden-tuning.pdf
and:
How*to*use*Tension*Gauges*|*Loos*&*Co.*-*Cableware*Division
__________________
Gord May
"If you didn't have the time or money to do it right in the first place, when will you get the time/$ to fix it?"



GordMay is online now   Reply With Quote
Old 07-05-2009, 09:31   #5
Registered User

Join Date: Jun 2006
Posts: 148
I have a 55 year old wooden boat so I read a lot of old books. Most recommend that you tension your rig by sailing, sighting up the mast, and adjusting it as necessary to obtain the desired set of your mast. Set it no tighter than necessary to keep your mast straight. I've raced with guys, on plastic boats, that kept their rigs tuned to about a mandolin pitch. One guy had to take the door to the head off as it wouldn't open and close do to the stress on the hull. You do that with your wooden boat & you'll shove your stick thru the bottom. Also, slack your rig if it's going to sit for an extended period.
__________________
How much deeper would the ocean be without sponges?
keelbolts is offline   Reply With Quote
Old 02-06-2009, 00:21   #6
Registered User
 
Randy's Avatar

Join Date: Oct 2008
Location: San Diego
Boat: Searunner 31
Posts: 639
Keelboats has it right. Wood boats aren't strung as tight as plastic ones.
__________________

__________________
Randy is online now   Reply With Quote
Reply

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not 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 Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Traditional Wooden Boats in SE Asia lejie General Sailing Forum 12 05-08-2010 07:29
Wooden Boats 'out of the water' Celestialsailor Construction, Maintenance & Refit 4 19-10-2008 13:02
Rig Tension guage - metric witzgall Construction, Maintenance & Refit 2 12-06-2008 10:59
Rig Tension bluewater Construction, Maintenance & Refit 9 27-08-2007 19:53
Fiberglassing wooden boats.... never monday Construction, Maintenance & Refit 22 27-12-2005 07:18



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 06:09.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.