Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 13-03-2016, 14:45   #1
Registered User

Join Date: Mar 2016
Location: Port Alfred, South Africs
Posts: 18
Structural damage repair

Hi all. Can anyone give me advice on the feasibility of a catamaran hull repair? The damage was caused by grounding. No external damage is visible but internal damage is apparent in that 2 cross members /ribs have been damaged. For that to happen there must have been significant deflection. Would that not also result in delamination over this area? It is a balsa core construction. She was sailed back to home port covering over 200 miles after the grounding without obvious issues.

The rest of the boat is in good condition. Estimated value of the boat is approx $80k.
Many thanks
__________________

__________________
SteveG58 is offline   Reply With Quote
Old 14-03-2016, 18:19   #2
Registered User
 
CheoyLee39's Avatar

Join Date: Apr 2014
Location: Cairns
Boat: Cheoy Lee Offshore 39
Posts: 66
Re: Structural damage repair

I am surprised you have not received a multitude of well informed and other replies yet, lol.....
Mine certainly belongs into the latter I don't have a Catamaran and have not had an issue along these lines. And I was not there at your mishap. However, if you have no hull damage as such and were able to sail happily home then I would suggest you may not have a huge problem long term.
As you mentioned it was a grounding and not a solid sharp impact, hence no external damage.
I am guessing it was a grounding on one side. Catamarans purely through design and build would have reasonable flex. And obviously this is the cause of your internal ribs becoming damaged, although you did not specify the damage.
I would be inclined just to contact someone who has professional knowledge of cats and repair, pay them for a few hours to inspect and advise you without telling them that you may or may not want them to repair. Then make a realistic estimation yourself out of that. If the thing tracked home okay and has no external visible damage you may well be able to repair it yourself .
__________________

__________________
CheoyLee39 is offline   Reply With Quote
Old 14-03-2016, 18:26   #3
Senior Cruiser

Cruisers Forum Supporter

Join Date: Aug 2009
Location: between the devil and the deep blue sea
Boat: a sailing boat
Posts: 17,314
Re: Structural damage repair

Check for water ingress in the balsa and for de-lamination of the core in the impacted area.

If no water ingress and no de-lamination then it may well be worth it.

b.
__________________
barnakiel is offline   Reply With Quote
Old 15-03-2016, 10:58   #4
Registered User

Join Date: Mar 2016
Location: Port Alfred, South Africs
Posts: 18
Re: Structural damage repair

Thank you for responding. No water ingress. Will check the core delamination. I have spoken to a local builder and it appears quite possible!
__________________
SteveG58 is offline   Reply With Quote
Old 15-03-2016, 14:08   #5
Senior Cruiser

Cruisers Forum Supporter

Join Date: Aug 2009
Location: between the devil and the deep blue sea
Boat: a sailing boat
Posts: 17,314
Re: Structural damage repair

De-lamination is repairable. Monohulls get flipped upside down by the boatyard then normal skin removal, new core, glue, new skin, etc. The boatyard that fixed Great American III and IV has nice pictures of similar fix on monos.

b.
__________________
barnakiel is offline   Reply With Quote
Reply

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not 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 Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Structural Damage? Cat 2016 Multihull Sailboats 5 18-02-2016 17:38
Buying a fiberglass boat that has had major structural repair. Reefmagnet Construction, Maintenance & Refit 18 26-06-2013 21:08
Southerly Yacht Structural Failure ozboatie Monohull Sailboats 5 08-09-2010 06:32
Soft Decks - Loss of Structural Integrity? daveyjustin Construction, Maintenance & Refit 2 11-06-2009 18:58
Structural Integrity of Deck Salon Boats Paragon01 Monohull Sailboats 22 14-01-2009 19:52



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 07:42.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.