Ok, guess what that is. The circle on the keel - SailNet Community

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Chat  
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 Tree2Likes
Reply
 
LinkBack Thread Tools
  #1  
Old 04-14-2012
Senior Member
 
Join Date: Jul 2008
Location: Yorktown Hts NY
Posts: 269
Thanks: 4
Thanked 0 Times in 0 Posts
Rep Power: 7
jppp is on a distinguished road
Ok, guess what that is. The circle on the keel

http://www.facebook.com/photo.php?fb...type=1&theater

I'm in the process of fairing a neglected keel, so what you see is epoxy fairing compound here and there. The $64 dollar question is, what's up with the circle?

I know already but thought this was interesting.
__________________
'79 Camper & Nicholson 303, Blow'd up labor day
Sunfish just fine
Dyer Dow, crushed in Hurricane Sandy
Angler 204 Cuddy-, Crushed in Hurricane Sandy
Yes all true, No wonder no one will go on the water with me.

Last edited by jppp; 04-14-2012 at 09:57 PM.
Reply With Quote Quick reply to this message Share with Facebook
  #2  
Old 04-14-2012
CorvetteGuy's Avatar
72 C&C Corvette
 
Join Date: Jun 2011
Location: PHYC
Posts: 318
Thanks: 0
Thanked 2 Times in 2 Posts
Rep Power: 4
CorvetteGuy is on a distinguished road
Re: Ok, guess what that is. The circle on the keel

looks like an eel bite of sorts
Reply With Quote Quick reply to this message Share with Facebook
  #3  
Old 04-14-2012
Senior Member
 
Join Date: Dec 2003
Posts: 1,416
Thanks: 1
Thanked 19 Times in 18 Posts
Rep Power: 12
capttb is on a distinguished road
Re: Ok, guess what that is. The circle on the keel

Sucker mark from a giant squid ? Did you mean the white circle or the little circle on the aft edge of the keel that looks like a "keel zinc"?
__________________
"Just call me TB"
Reply With Quote Quick reply to this message Share with Facebook
  #4  
Old 04-14-2012
Senior Member
 
Join Date: Jul 2008
Location: Yorktown Hts NY
Posts: 269
Thanks: 4
Thanked 0 Times in 0 Posts
Rep Power: 7
jppp is on a distinguished road
Re: Ok, guess what that is. The circle on the keel

The big circle. The mystery is what's behind it and why.

The small circle on the trailing edge is a zinc. I guess it's a clue.
__________________
'79 Camper & Nicholson 303, Blow'd up labor day
Sunfish just fine
Dyer Dow, crushed in Hurricane Sandy
Angler 204 Cuddy-, Crushed in Hurricane Sandy
Yes all true, No wonder no one will go on the water with me.
Reply With Quote Quick reply to this message Share with Facebook
  #5  
Old 04-15-2012
itsaboat's Avatar
Senior Member
 
Join Date: Sep 2011
Posts: 235
Thanks: 5
Thanked 0 Times in 0 Posts
Rep Power: 4
itsaboat is on a distinguished road
Re: Ok, guess what that is. The circle on the keel

Looks like a black hole. Some of the Hawking designed boats had them; somewhat more dense ballast material than lead.
__________________
Pearson 27
Reply With Quote Quick reply to this message Share with Facebook
  #6  
Old 04-15-2012
mitiempo's Avatar
Senior Member
 
Join Date: Sep 2008
Location: Victoria B.C. Canada
Posts: 7,355
Thanks: 0
Thanked 85 Times in 76 Posts
Rep Power: 8
mitiempo will become famous soon enough mitiempo will become famous soon enough
Re: Ok, guess what that is. The circle on the keel

I would be curious why there is a zinc on a keel.
__________________
Brian
Living aboard in Victoria Harbour
Reply With Quote Quick reply to this message Share with Facebook
  #7  
Old 04-15-2012
davidpm's Avatar
Senior Member
 
Join Date: Oct 2007
Location: Madison
Posts: 3,832
Thanks: 207
Thanked 52 Times in 44 Posts
Rep Power: 8
davidpm is on a distinguished road
Re: Ok, guess what that is. The circle on the keel

Some keels had a pocket in them so a threaded rod could be fitted with a nut inside the keel.
Doesn't look like the right place for that though.
Reply With Quote Quick reply to this message Share with Facebook
  #8  
Old 04-15-2012
SloopJonB's Avatar
Senior Moment Member
 
Join Date: Jun 2011
Location: West Vancouver B.C.
Posts: 11,141
Thanks: 59
Thanked 56 Times in 53 Posts
Rep Power: 4
SloopJonB will become famous soon enough
Re: Ok, guess what that is. The circle on the keel

Lightweight filler where they cut a chunk of lead out to make the boat meet its rating? Used to see it done occasionally on IOR boats, especially the level raters that had to be at a specific rating.
davidpm likes this.
__________________
I, myself, personally intend to continue being outspoken and opinionated, intolerant of all fanatics, fools and ignoramuses, deeply suspicious of all those who have "found the answer" and on my bad days, downright rude.
Reply With Quote Quick reply to this message Share with Facebook
  #9  
Old 04-15-2012
SlowButSteady's Avatar
Senior Slacker
 
Join Date: Feb 2010
Location: SoCal
Posts: 4,223
Thanks: 0
Thanked 17 Times in 15 Posts
Rep Power: 6
SlowButSteady is on a distinguished road
Re: Ok, guess what that is. The circle on the keel

It's a bull's-eye for torpedo practice. Don't get too close to any naval bases.
__________________
Never forget them. Do something to prevent it from happening again.
Charlotte Bacon, Daniel Barden, Rachel Davino, Olivia Josephine Gay, Ana M. Marquez-Greene, Dylan Hockley, Dawn Hochsprung, Madeleine F. Hsu, Catherine V. Hubbard, Chase Kowalski, Jesse Lewis, James Mattioli , Grace McDonnell, Anne Marie Murphy, Emilie Parker, Jack Pinto, Noah Pozner, Caroline Previdi, Jessica Rekos, Avielle Richman, Lauren Rousseau, Mary Sherlach, Victoria Soto, Benjamin Wheeler, Allison N. Wyatt
Reply With Quote Quick reply to this message Share with Facebook
  #10  
Old 04-15-2012
rugosa's Avatar
Senior Member
 
Join Date: Aug 2011
Location: In a strange land
Posts: 555
Thanks: 1
Thanked 7 Times in 7 Posts
Rep Power: 4
rugosa is on a distinguished road
Re: Ok, guess what that is. The circle on the keel

You've got a zinc on the keel, so the keel is not lead. Per SLB it is a window, not to lighten the keel but to add lead to increase ballast weight.
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
Great circle course brokesailor Seamanship & Navigation 4 07-30-2011 11:58 AM
Down East Circle Route PhilipH2 Cruising & Liveaboard Forum 1 08-22-2010 02:27 PM
Big circle Irwin32 Cruising & Liveaboard Forum 6 02-03-2006 06:53 AM
Great Circle Cruise me ma Crew Wanted/Available 0 07-14-2004 10:02 AM


All times are GMT -4. The time now is 08:15 PM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2015, 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.