Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 30-06-2004, 20:21   #1
Registered User
 
troppoboat's Avatar

Join Date: Jun 2003
Location: Darwin NT Aust
Posts: 33
Images: 3
Mini keels

I am fitting the mini keel one of my hulls next week and was wondering what type of fiber would be best for this area as we will be beaching our boat from time to time Regards Shane
__________________

__________________
troppoboat is offline   Reply With Quote
Old 01-07-2004, 16:54   #2
Registered User
 
Sonosailor's Avatar

Join Date: Mar 2003
Location: Fredericton, NB, Canada in the summer and fall; Caribbean in winter and spring aboard Cat Tales.
Boat: FP Tobago 35 (and a H-21 SE)
Posts: 547
Images: 8
No clue about the fibre. However, my Tobago 35 has the keels as independent units that are premanufactured and stuck into slots in the main hull. If I were starting from scratch, I would use epoxies around foam, as the epoxies don't attack the foam like the polyesters. This would free you up to shape in foam, and then cover and attach as a separate step.

To be fair, I may be out of my league. You should broach the subject at themultihull.com where they really go into such building detail.

Cheers, Sonosailor
__________________

__________________
Sonosailor is offline   Reply With Quote
Old 06-07-2004, 13:17   #3
Senior Cruiser
 
delmarrey's Avatar

Cruisers Forum Supporter

Join Date: Mar 2003
Location: Now in Blaine, WA
Boat: Modified Choate 40
Posts: 10,702
Images: 122
Troppo

Have you considered kevlar cloth? It's commonly used in this area for bow and keel wood to protect against abrasion. You could use a couple layers around the forward and bottom edges for punchure protection.
......._/)
__________________
delmarrey is offline   Reply With Quote
Old 06-07-2004, 22:38   #4
Registered User
 
troppoboat's Avatar

Join Date: Jun 2003
Location: Darwin NT Aust
Posts: 33
Images: 3
Lay ups

G'Day Sonosailer and Delmarry thanks for the link the designer, who I finaly was able to contact has recomended dynel cloth. In my mind Delmarrys suggestion of carbon/kevlar sounds like a good one in preference to dynel. I have never used carbon and have been told its hard to consolidate with out vacume bagging is there a way to do this without going to all the fuss. regards Shane
__________________
troppoboat is offline   Reply With Quote
Old 07-07-2004, 03:17   #5
Senior Cruiser
 
Alan Wheeler's Avatar

Cruisers Forum Supporter

Join Date: Dec 2003
Location: Marlborough Sounds. New Zealand
Boat: Hartley Tahitian 45ft. Leisure Lady
Posts: 8,038
Images: 102
Carbon fibre is unbelievably expensive and twice that to work with. Kevlar is easier and cheaper, but still more expensive than Dynal.
The cloth itself is not what you need to give you the abrasion resistance. Look at it this way, if you have worn down to the cloth, you have worn to far anyway. You need an anti-wear coating applied to area's of contact, to protect the surface below. i.e the paint/gelcoat, resin/fibre. If the designer is happy that Dynal be used, then I would keep to what he suggests. That's the guy that should know best. Then make sure you place some protective barrier such as Epoxy carborundum on any contact area.
Wheels
__________________
Wheels

For God so loved the world..........He didn't send a committee.
Alan Wheeler is offline   Reply With Quote
Old 28-07-2004, 16:52   #6
Registered User
 
Wahoo Sails's Avatar

Join Date: Jul 2004
Location: Marathon, Florida
Boat: Cape Dory 28, "Night Wind"
Posts: 353
Images: 16
you might want to have a look at www.keelshield.net
Bob
__________________
Wahoo Sails is offline   Reply With Quote
Old 15-08-2004, 19:12   #7
Registered User

Join Date: Aug 2004
Posts: 6
OK

You coud do what a lot of canoeist do. Lay on the layer of heavy glass cloth but for the last 2 coats of epoxy, mix carbon powder in to the epoxy. It makes the epoxy very hard. If you wear through that, all you have to do is apply more epoxy.
__________________

__________________
JeffG 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
Daggers v Keels catmandoo Multihull Sailboats 17 02-08-2013 10:33
Fin Keel? Long Keel? Jeff? bob_deb Monohull Sailboats 89 13-03-2012 12:28
Long keel 28/32 ft? nopollution Monohull Sailboats 85 18-08-2005 12:32
Heel as an indicator Stede Monohull Sailboats 26 12-10-2003 17:57



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 14:26.


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.