Centerboard in heavy weather - SailNet Community

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Boat Reviews  
Classifieds     
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Charts
Clothing
Electrical
Electronics
Engine
Hatches and Portlights
Interior And Galley
Maintenance
Marine Electronics
Navigation
Other Items
Plumbing and Pumps
Rigging
Safety
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here






Go Back   SailNet Community > General Interest > General Discussion (sailing related)
 Not a Member? 


Like Tree1Likes
  • 1 Post By capta
Reply
 
LinkBack Thread Tools
  #1  
Old 04-27-2013
Member
 
Join Date: Aug 2011
Posts: 61
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 4
tominny is on a distinguished road
Centerboard in heavy weather

What do people do with their centerboards when the going gets rough?

I wonder if in heavy weather, I should lower down the centerboard (I have a '77 Tartan 34C) on any point of sail and when using any kind of storm tactic?

When beating into the wind on my boat the lowered CB greatly reduces weather helm and makes steering straight much much easier. In fact, I can just lock the wheel and the boat stays on course w/o AP.
On a recent E->W Gulf Stream crossing with moderate SW winds on a broad reach the rolling seemed markedly reduced with the CB down.

Also, in breaking waves, my thinking goes, the CB might reduce the chances of rolling after broaching. It many also reduce the chances of broaching in the first place?

This makes me think that it may be a good idea as a rule to always keep the board down in heavy weather.
However, I am worried about the loadings on the CB in these cases. The CB I have is a comparatively light fiberglass structure on a SS pivoting mechanism that extends the boat's draft from 4' to 8'. I wonder if lateral loads could develop that, for example to the lower tip of the board, could create enough leverage to break it?
__________________
Thomas

Tartan 34C
New York City
Reply With Quote Quick reply to this message Share with Facebook
  #2  
Old 04-27-2013
capta's Avatar
Master Mariner
 
Join Date: Jun 2011
Location: somewhere in the Windward or Leeward Islands
Posts: 1,743
Thanks: 17
Thanked 90 Times in 85 Posts
Rep Power: 4
capta is on a distinguished road
Re: Centerboard in heavy weather

We not only use our board underway, we also use it at anchor. It reduces rolling and sailing on the anchor, making it much more comfortable.
One thing I have learned on this boat about the board is that it can be down any amount, not just all the way up or down. We use it about 2/3 of the way down most of the time, under sail or at anchor, which reduces the "banging" to zero. Rarely do we sail with it all the way down; mostly down wind in heavy weather, to give us more stability and control, and all the way up when anchoring or in docking situations.
I believe your boat is designed to use the board whenever you wish; I doubt you could do any damage if you don't run aground.
Tempest likes this.
__________________
"Any idiot can make a boat go; it takes a sailor to stop one." Spike Africa aboard the schooner Wanderer in Sausalito, Ca. 1964.
Reply With Quote Quick reply to this message Share with Facebook
  #3  
Old 04-27-2013
RichH's Avatar
Senior Member
 
Join Date: Jul 2000
Location: Pennsylvania
Posts: 2,967
Thanks: 10
Thanked 89 Times in 81 Posts
Rep Power: 15
RichH will become famous soon enough
Re: Centerboard in heavy weather

On lightweight centerboarders ... for upwind, keep the board down 'until' you are HEELING over too much, then start to retract the board a bit which will allow the boat to more easily skid instead of heeling over ... bring the board up until you begin to have noticeable helm pressure that cant be offset by maximizing/changing sail 'shape' (via halyard tension, etc.) to control the adverse helm, then a little deeper with the board for 'stability'.
On a centerboarder, my preference is to be skidding slightly than broaching or 'tripping over the board' when it gets 'violent'.
Reply With Quote Quick reply to this message Share with Facebook
  #4  
Old 04-27-2013
Senior Member
 
Join Date: Apr 2007
Location: Three Mile Harbor, East Hampton, NY
Posts: 473
Thanks: 0
Thanked 3 Times in 3 Posts
Rep Power: 8
tweitz is on a distinguished road
Centerboard in heavy weather

Ours is a Benrteau with lifting keel, and the heavier the weather the more likely I am to keep it down all the way. Besides better pointing, it makes the boat that much stiffer. I don't see a downside unless the water is under 7 feet, since the draft goes from 7 feet to 3.
Reply With Quote Quick reply to this message Share with Facebook
  #5  
Old 04-27-2013
whroeder's Avatar
Member
 
Join Date: Aug 2007
Location: Palm Bay, FL
Posts: 87
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 8
whroeder is on a distinguished road
Re: Centerboard in heavy weather

On the Mac26X, CB half way down is about right for weather helm.
The more you raise it, the more the center of effort moves back and the less you get.
Reply With Quote Quick reply to this message Share with Facebook
  #6  
Old 04-29-2013
Member
 
Join Date: Aug 2011
Posts: 61
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 4
tominny is on a distinguished road
Centerboard in heavy weather

Thanks. That's good advice. I'll try to see if the board down reduces rolling at anchor in my case.
__________________
Thomas

Tartan 34C
New York City
Reply With Quote Quick reply to this message Share with Facebook
  #7  
Old 04-29-2013
CalebD's Avatar
Tartan 27' owner
 
Join Date: Jan 2008
Location: NYC
Posts: 4,617
Thanks: 4
Thanked 93 Times in 85 Posts
Rep Power: 7
CalebD will become famous soon enough
Re: Centerboard in heavy weather

Is there a mechanism for locking the C/B in place?
In the event of a knock down or worse, pitch poling the C/B is free to swing around in it's slot, possibly creating a serious hull leak.
If it is lockable then hopefully no worries about this.
__________________
"The cure for anything is salt water~ sweat, tears, or the sea." ~Isak Denesen

Everybody has one:

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Quick reply to this message Share with Facebook
  #8  
Old 04-29-2013
krisscross's Avatar
Senior Member
 
Join Date: Feb 2013
Location: NC
Posts: 1,715
Thanks: 23
Thanked 94 Times in 93 Posts
Rep Power: 2
krisscross is on a distinguished road
Re: Centerboard in heavy weather

Quote:
Originally Posted by CalebD View Post
Is there a mechanism for locking the C/B in place?
In the event of a knock down or worse, pitch poling the C/B is free to swing around in it's slot, possibly creating a serious hull leak.
If it is lockable then hopefully no worries about this.
At one time I was looking to see if something like that ever happened to a CB boat but have not found any instances of a CB punching a hole in a boat during a rollover. Maybe it is just a theoretical possibility. Some CB designs do have a locking mechanism - I think Tartan 34 is one of them. Bummer if you run aground with a CB locked in place - much greater chance of doing some damage.
Reply With Quote Quick reply to this message Share with Facebook
  #9  
Old 04-29-2013
priscilla's Avatar
Member
 
Join Date: Mar 2000
Location: Marblehead, Ma.
Posts: 84
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 15
priscilla is on a distinguished road
Re: Centerboard in heavy weather

I "hove to" in a Gulf Stream storm for two days with the board up. That allowed the boat to slide to leeward which helped flatten the sea. The drift took us south, the Gulf Stream north, we stayed in the same spot! In normal sailing and motoring I keep the board down a little as it helps the autopilot to track.
__________________
Priscilla
Reply With Quote Quick reply to this message Share with Facebook
  #10  
Old 04-29-2013
Thanks Courtney.
 
Join Date: Sep 2006
Location: IL
Posts: 3,954
Thanks: 1
Thanked 1 Time in 1 Post
Rep Power: 11
T34C has a spectacular aura about T34C has a spectacular aura about T34C has a spectacular aura about
Re: Centerboard in heavy weather

Quote:
Originally Posted by CalebD View Post
Is there a mechanism for locking the C/B in place?
In the event of a knock down or worse, pitch poling the C/B is free to swing around in it's slot, possibly creating a serious hull leak.
If it is lockable then hopefully no worries about this.
The CB on the T34C is controlled by a continuous cable that moves it both up, and down. That makes the board "locked" into whatever position you put it in.
__________________
hunter Legend 37 Semper Paratus
Formerly - Tartan 34C Yawl
Reply With Quote Quick reply to this message Share with Facebook
Reply

Quick Reply
Message:
Options

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:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

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

 
Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Heavy weather furling? MedSailor Gear & Maintenance 17 04-18-2008 11:11 PM
Stowing for Heavy Weather Sue & Larry Cruising Articles 0 06-21-2004 09:00 PM
preping for heavy weather jbarros Seamanship & Navigation 7 05-02-2003 08:32 AM
heavy weather???? nauticalrich Seamanship & Navigation 12 05-08-2002 06:22 PM
Nauticat In Heavy Weather Konstanz Boat Review and Purchase Forum 0 10-18-2001 08:15 AM


All times are GMT -4. The time now is 07:40 AM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012

The SailNet.com store is owned and operated by a company independent of the SailNet.com forum. You are now leaving the SailNet forum. Click OK to continue or Cancel to return to the SailNet forum.