OK for keel to stick in mud at low tide? - Page 2 - SailNet Community
Reply
 
LinkBack Thread Tools
post #11 of 21 Old 02-16-2007
A little less cheek
 
ianhlnd's Avatar
 
Join Date: Jul 2006
Location: Valparaiso bound
Posts: 752
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 10
   
I agree with everyone who said "don't do it"

It's called "hydraulic action" as the keel sinks at low tide the pressure is upward, no problem, they sit boats at yards on their keel.

The problem is with a rising tide forcing the hull up with the mud sucking the keel down. Good way to separate both. Take a look at my gallery, or google "wreck of the Irving Johnson" It took them two years to repair the hull.

Last edited by ianhlnd; 02-16-2007 at 08:45 AM.
ianhlnd is offline  
Quote Quick Reply Share with Facebook
Sponsored Links
Advertisement
 
post #12 of 21 Old 02-16-2007
Senior Member
 
Join Date: Dec 2006
Location: Seaside, Florida
Posts: 3,331
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 10
   
I would think that a lot depends upon how far down into the mud the keel sinks at low tide. If it sinks far enough to come in contact with the hull, that would be one thing; if it just dunks a few inches of the keel it would be another. My keel just touches bottom at low tide, and during spring tides it sinks in a few more inches, and I can't get in or out for a good hour or so on either end of the tidal movement.

I have a question for Ianhlnd: Sweet sassymolassy, who is that gal?
sailhog is offline  
Quote Quick Reply Share with Facebook
post #13 of 21 Old 02-16-2007
A little less cheek
 
ianhlnd's Avatar
 
Join Date: Jul 2006
Location: Valparaiso bound
Posts: 752
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 10
   
sailhog: I have a question for Ianhlnd: Sweet sassymolassy, who is that gal?

One of my friends, not really a girlfriend, well, kinda. I'm trying to get her to model for me but she's a little shy. I'm desperate for crew, and she likes sailing.
ianhlnd is offline  
Quote Quick Reply Share with Facebook
post #14 of 21 Old 02-16-2007
Senior Member
 
Join Date: Dec 2006
Location: Seaside, Florida
Posts: 3,331
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 10
   
ianhlnd,
Looks like she knows what to do in between the sheets, so to speak.
sailhog
sailhog is offline  
Quote Quick Reply Share with Facebook
post #15 of 21 Old 02-16-2007
Senior Member
 
Join Date: Dec 2006
Posts: 559
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 9
 
ianhind ... yes indeed, a few pointers regarding deck fluff stuff in Giu's direction if you would be so kind ... sets his standards a wee bit low.
cockeyedbob is offline  
Quote Quick Reply Share with Facebook
post #16 of 21 Old 02-17-2007
I don't discuss my member
 
Fstbttms's Avatar
 
Join Date: Feb 2003
Location: Under a boat, in a marina, in the San Francisco Bay
Posts: 2,181
Thanks: 5
Thanked 26 Times in 26 Posts
Rep Power: 13
 
While I agree with those who wonder why you would willingly berth your boat in a slip that you know will regularly be too shallow for you to get in to or out of, I see keels in the mud all the time here in the San Francisco Bay Area. The bottom is generally a very soft, deep mud and unless the keel is bouncing on something hard that is buried in the mud, damage is a real rarity. Repeated mud immersions will abrade bottom paint off or render it inert, however.
Fstbttms is offline  
Quote Quick Reply Share with Facebook
post #17 of 21 Old 02-24-2007
Junior Member
 
Join Date: Jan 2006
Posts: 2
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
My Newport 30 was kept in a slip (by the previous owners)where it sometimes bottomed out into a muddy bottom in Vallejo CA. The boat moving around eventually caused damage to the hull to keel joint. It cost them $1000 for the repair so paying a little more or having a good slip in a less convenient location may be worth it
ggorbach is offline  
Quote Quick Reply Share with Facebook
post #18 of 21 Old 02-24-2007
RaggedyMan
 
Join Date: Jan 2007
Location: Galveston,Texas
Posts: 4
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
Nasty Keel

I have a 6' draft on my 34 Pearson that I bought recently. When I found it, it was sitting on the keel in the mud leaning against the dock. The previous owner told me that only happens at low tide. When I got to see the bottom it looked like I had a wing keel made from barnacles. Try to find a better place!
RaggedyMan is offline  
Quote Quick Reply Share with Facebook
post #19 of 21 Old 02-26-2007
Senior Member
 
Join Date: Jan 2001
Posts: 507
Thanks: 0
Thanked 3 Times in 3 Posts
Rep Power: 15
 
I kept a boat many years ago at a slip that had that problem. It was sometimes inconvenient to arrive at the dock and not be able to get out, or not be able to get back, but I lived with it because the slip was free. I even bought a tide phase watch to time my arrivals and departures. Since then, I've had occasions where I needed to return to get out of a storm, or for other emergencies and I would hate to think of not being able to get back because of the tide fall. I certainly wouldn't pay for that type of headache.
Quickstep192 is offline  
Quote Quick Reply Share with Facebook
post #20 of 21 Old 02-28-2007
Quit calling me a member
 
Join Date: Oct 2006
Location: Connecticut
Posts: 111
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 9
 
The marina where I winter haul has nominal depths of 3 1/2 feet at low tide. They regularly moor boats with 5 and 6 foot drafts in their field. Normally this results in boats with paint and gel coat ground off the bottom (the "mud" is of course filled with rocks, clams, barnacles, etc. .. VERY abrasive.) The yard doesn't mind as repairs for this type of damage is fast an easy - goop on some epoxy, cover with paint.

This past summer, a particularly bad storm sucked most of the water out of the harbor. Many boats bottomed out, hard. This winter, the array of damage is amazing - bent/broken rudders, keels ground down to bare fiberglass, big holes, fin keels bent, horizontal stabilzers broken & distorted. To say nothing of the unseen structural damage.

Go find a mooring with enough water for your boat.
morganmike is offline  
Quote Quick Reply Share with Facebook
Reply

Quick Reply
Message:
Options

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:
OR

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
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Forum Replies Last Post
Basic Thoughts on Tides Jim Sexton Learning to Sail Articles 0 11-17-2003 07:00 PM
Basic Thoughts on Tides Jim Sexton Seamanship Articles 0 11-17-2003 07:00 PM
Using Tide Tables Jim Sexton Seamanship Articles 0 10-14-2003 08:00 PM
Using Tide Tables Jim Sexton Gear and Maintenance Articles 0 10-14-2003 08:00 PM
Using Tide Tables Jim Sexton Her Sailnet Articles 0 10-14-2003 08:00 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