Draining Water from Rudder - Page 2 - 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 > On Board > Gear & Maintenance
 Not a Member? 


Like Tree1Likes
Reply
 
LinkBack Thread Tools
  #11  
Old 11-03-2013
Senior Member
 
Join Date: Feb 2010
Location: Narragansett Bay
Posts: 8,845
Thanks: 10
Thanked 131 Times in 117 Posts
Rep Power: 6
Minnewaska will become famous soon enough Minnewaska will become famous soon enough
Re: Draining Water from Rudder

Quote:
Originally Posted by swallace11 View Post
.....I guess that this relys on the fact that corrosion underwater in absense of air is limited.....
Corrosion of stainless steel is caused by this, as stainless relies on a microscopically thin layer of oxidation to prevent the steel from rusting. This layer does not form or replenish in the absence of oxygen, therefore, the iron is at risk. Read up on crevice corrosion.
__________________

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Jeanneau 54DS

In the harsh marine environment, something is always in need of repair. Margaritas fix everything.
Reply With Quote Share with Facebook
  #12  
Old 11-03-2013
deniseO30's Avatar
Move over Joan Rivers!
 
Join Date: Nov 2006
Location: Bristol pa
Posts: 6,016
Thanks: 51
Thanked 84 Times in 74 Posts
Rep Power: 9
deniseO30 will become famous soon enough deniseO30 will become famous soon enough
Re: Draining Water from Rudder

E and I have huge rudders.
It behooves us to take care of them LOL
__________________
Denise, Bristol PA, Oday 30. On Tidal Delaware River, Anchor Yacht Club. New Website!
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

my current "project"!
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Share with Facebook
  #13  
Old 11-03-2013
Senior Member
 
Join Date: Apr 2008
Posts: 449
Thanks: 12
Thanked 15 Times in 15 Posts
Rep Power: 7
Hudsonian is on a distinguished road
Re: Draining Water from Rudder

The rudder armature has failed on two of the nine Tartan 30's at the Club where I'm a member. As I recall, both required significant repairs to the skeg shoe while the rudder was off.
Reply With Quote Share with Facebook
  #14  
Old 11-03-2013
Junior Member
 
Join Date: Mar 2013
Posts: 3
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
Caridea is on a distinguished road
Re: Draining Water from Rudder

If rudders eventually fill with water, why not design a rudder that can be submerged and inspected. I'm thinking a few basic structural components such as ribs and spars(rudderpost) with a covering of plastic, riveted on. The shape is the same and with holes on the top and bottom it could fill with water, then drain when hauled out.

Anyone see anything out there like that? With a roll of plastic, rivets and some spare ribs you could even keep a spare rudder stored on board unassembled.


Wing design
Reply With Quote Share with Facebook
  #15  
Old 11-04-2013
mitiempo's Avatar
Senior Member
 
Join Date: Sep 2008
Location: Victoria B.C. Canada
Posts: 7,069
Thanks: 0
Thanked 68 Times in 59 Posts
Rep Power: 7
mitiempo will become famous soon enough mitiempo will become famous soon enough
Re: Draining Water from Rudder

Rudders that do not suffer from water absorption have been designed and built. The problem is that the stainless rudder post and armature inside and the fiberglass covering it have different expansion rates, making it impossible to seal the fiberglass to the rudder post for the long term. The post and rudder have to be made of the same material. Carbon fiber rudder posts are used on some boats and don't have this problem. Expensive though.
__________________
Brian
Living aboard in Victoria Harbour
Reply With Quote Share with Facebook
Reply


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
Rudder draining, repair, etc. kwaltersmi Gear & Maintenance 8 09-28-2012 11:00 PM
Water in rudder Barquito Gear & Maintenance 18 10-18-2010 03:01 PM
Water comming up through the rudder post egle01 Gear & Maintenance 3 06-23-2008 07:23 PM
Water in the rudder - now what? pmoyer Gear & Maintenance 11 12-30-2007 04:49 PM
Draining water tanks teshannon Gear & Maintenance 39 06-24-2007 10:45 AM


All times are GMT -4. The time now is 07:32 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.