Cruisers Forum

Join CruisersForum Today

Thread Tools Rate Thread Display Modes
Old 03-07-2015, 10:56   #1
Registered User
zboss's Avatar

Join Date: Sep 2011
Location: On a boat
Boat: Cabo Rico 38
Posts: 3,025
"Detuning" rig


We are going to be decommissioning the boat for about a year, maybe two, while we work and save up money for a bunch of improvements we would like to make to the boat. Unfortunately, we had a great time on our 1.5 year shake down cruise but now its time to put our time in and get the boat in the shape we want it before heading out on a much longer trip.

I was wondering if it is wise to detune or loosen the rigging slightly to help extend out its lifetime while we are here in the slip...

We plan on getting a rigger back on the boat before we head out again to tune the standing rigging.

Thoughts or experiences?

- z

zboss is offline   Reply With Quote
Old 03-07-2015, 10:59   #2
Registered User
Stu Jackson's Avatar

Join Date: Jan 2011
Location: Cowichan Bay, BC (Maple Bay Marina)
Posts: 5,437
Re: "Detuning" rig

If you're staying in the water, the boat rocks. Keep the rig tuned. It'll stretch some over time anyway. Good luck on the upgrades.

Stu Jackson
Catalina 34 #224 (1986) C34IA Secretary
Cowichan Bay, BC, (Maple Bay Marina) SR/FK, M25, Rocna 10 (22#) (NZ model)
Stu Jackson is offline   Reply With Quote
Old 03-07-2015, 17:17   #3
Registered User
neilpride's Avatar

Join Date: Jul 2009
Location: in the world
Boat: csy 44 tall rig.
Posts: 2,683
Re: "Detuning" rig

Dont, the rigging should stay tuned if you leave the boat for a while, if you slack the shrouds shock loads do more harm than tensioned shrouds ...
neilpride is online now   Reply With Quote
Old 03-07-2015, 20:30   #4
Senior Cruiser
roverhi's Avatar

Cruisers Forum Supporter

Join Date: Aug 2005
Location: Kona, Hawaii
Boat: 1969 Pearson 35 #108
Posts: 5,450
Send a message via Yahoo to roverhi
Re: "Detuning" rig

The rigging is trying to deform the hull. Old wooden boats would actually pull the center of hull upwards and/or compress the deck inward from the strain of the rigging. FRP is more resistant to this than wood but still happens especially if the rigging is kept bar taut. Loosen the rigging to the point just before it begins to sag off. Without any sails and sitting in a slip or on the hard, the rigging will not be subjected to the strain put on it sailing. Likewise there will be no shock loads as the wind resistance of the bare stick will be the only force the rigging has to cope with. No need to try/succeed in deforming the hull when the boat is not being used.
Peter O.
'Ae'a Pearson 35
roverhi is offline   Reply With Quote
Old 03-07-2015, 21:36   #5
Registered User

Join Date: Nov 2011
Location: Oregon, USA
Boat: Shuttleworth Advantage 43
Posts: 199
Re: "Detuning" rig

Bungees between shrouds can prevent shock loads. Some riggers recommend this as a standard practice to prevent shock loads on slackened leeward shrouds.

Cyclical shock loads can be a significant cause of failure. Example: after repeat failure of bolts on the superstructure of a trombe wall on the exterior of our building, analysis determined the cause to be from the constant relatively small shock loads from truck tires hitting the expansion joints on the nearby elevated freeway.
rgesner is offline   Reply With Quote

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
De Masting creates better standing rigging with "New larger Fractional rig" Questions RiverPirate Deck hardware: Rigging, Sails & Hoisting 8 15-09-2012 23:35
For Sale: "Santa Cruz Sails" 26' 8" x 24' 10" x 15' 3" Genoa Cut Sail Joy Devlin Classifieds Archive 0 19-06-2012 16:22
Tall Rig vs Regular Rig grasspack General Sailing Forum 5 05-08-2011 11:59
Gaff Rig and Junk Rig - Controling Twist Ben M-P Deck hardware: Rigging, Sails & Hoisting 6 10-12-2010 17:10
"recent price reduction""owner anxious""bring all offers" sailorboy1 Dollars & Cents 10 22-01-2009 11:25

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities

Copyright 2002-2015 Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 03:13.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.