Catalina 27 Keel stub and bolts - 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 > Boat Builders Row > Catalina
 Not a Member? 


Reply
 
LinkBack Thread Tools
  #1  
Old 04-03-2013
Seascape's Avatar
Junior Member
 
Join Date: Mar 2013
Posts: 4
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
Seascape is on a distinguished road
Catalina 27 Keel stub and bolts

Hello everyone. While in the boat yard, I'm looking to perform the keel stub fix for my 1974 C27 and remove the plywood from the keel stub, rebuild with glass, then sister/window in some new 316 SS keel bolts (not lag screws) as prescribed by Catalina. I have found numerous other threads dealing with this issue, but my question specifically refers to where to attach the new fiberglass in the stub. After you remove the top layer of fiberglass in the bilge and remove the plywood filler in the stub then several layers of new glass must be placed. In order to provide a secure hold for the new keel bolts does the glass need to be run up onto the sides of the bilge or maybe beyond? My concern is that if you only fill in the stub with glass there would not seem to be enough strength to hold the new keel bolts. The diagram Catalina provided and mentioned in other threads doesn't really detail how far up into the bilge sides the glass should be run from the stub floor in order to provide a secure hold for the keel bolts. Any ideas from those that have performed this repair? I also plan to glass in some G-10 in the bilge as a backing plate for the keel bolts.

Thank you.
__________________
Catalina 27 - Current boat
Pearson 40- Sold
Catalina 36- Sold
Reply With Quote Share with Facebook
  #2  
Old 04-03-2013
Faster's Avatar
Just another Moderator
 
Join Date: Sep 2005
Location: New Westminster, BC
Posts: 14,390
Thanks: 63
Thanked 160 Times in 157 Posts
Rep Power: 10
Faster has a spectacular aura about Faster has a spectacular aura about Faster has a spectacular aura about
Re: Catalina 27 Keel stub and bolts

This image:

http://www.blumhorst.com/catalina27/...m_catalina.gif

suggests running the glass 6" up the stub. Presumably the hull/stub transition is sufficiently strong from the beginning so this repair/change shouldn't change that structural requirement, there may not be a lot gained by glassing up onto the hull proper.

I'm a little surprised that Catalina recommends glassing around/across the keel/stub joint on the outside.. anyone done this? It's a relatively light layup that I'd think would be prone to cracking when this area inevitably flexes over time...
__________________
Ron

1984 Fast/Nicholson 345 "FastForward"

".. there is much you could do at sea with common sense.. and very little you could do without it.."
Capt G E Ericson (from "The Cruel Sea" by Nicholas Monsarrat)
Reply With Quote Share with Facebook
  #3  
Old 04-03-2013
Seascape's Avatar
Junior Member
 
Join Date: Mar 2013
Posts: 4
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
Seascape is on a distinguished road
Re: Catalina 27 Keel stub and bolts

Thanks. I initially missed the drawing recommendation of running 6" up the stub and onto the bilge sides. I may go up a little higher for some added strength. This repair is done from the inside by cutting into the bottom of the bilge around to keel bolts, removing the top layers glass and then the rotted plywood in the stub. The outside repair of the stub-keel joint (Catalina smile) is completely different than what I am referring to.
__________________
Catalina 27 - Current boat
Pearson 40- Sold
Catalina 36- Sold
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
1977 O'Day 32 aft keel stub repair advice staind949 O'Day 1 11-06-2012 10:01 PM
Repair of broken hull around keel stub mainer24 Gear & Maintenance 32 10-03-2012 05:13 PM
I-28 Keel stub construction? downeast450 Islander 16 11-14-2010 05:39 AM
Keel Bolts on 1978 Catalina 30 rheaton Catalina 3 09-19-2006 03:40 PM
Catalina Keel bolts Zevirii Gear & Maintenance 11 08-31-2006 04:08 PM


All times are GMT -4. The time now is 09:15 PM.

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