Thread: Todays Boat Construction
Results 61 to 80 of 166
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SHARKEY-IMAGESGuest01-31-2009 02:02 PM
No.
That would be this one that is being built by Hydra whom I used to work for:
More photos: http://sharkeyimages.zenfolio.com/p100583851
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01-31-2009 02:23 PM
Foam in a Whaler is a structural material, just not a core like we are familiar. Comparing the two was not fair, however it does show that foam in general can have its problems. Other builders like Edgewater and Everglades are especially fond of it. But that’s a completely different type of construction.
Balsa does have many shortcomings as you guys pointed out. Absorption of both water and resin is at the top. I think I’ve seen a “skinned” balsa material that may alleviate some of theses issues.
Personal opinion is that the new polymer core materials are the way to go for high end construction. As said earlier they are available in almost any weight and cut. Has any material been developed that outperforms marine grade ply for transoms?
Resin infusion is attractive for large production builders where they are trying to control VOC emissions.
The big issue with any of this is preventing water from penetrating the inner or outer layers in the first place.
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01-31-2009 04:21 PM
Hey Steve #1 - Tim - sharky , Just curious guys have we been doing this to long and how many years have you been in the business ? I personally have over thirty years experience in the field and i guess that qualifies me as an old goat roper .
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SHARKEY-IMAGESGuest01-31-2009 04:57 PM
I started around 1984 and got out around 1995 ??? But non the less I always admire a good clean lay up.
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01-31-2009 05:30 PMSlippery when wet. PODLESS TUNNEL www.cheetahcat.com ,Repairs, Modifications and Truing Cheap reliable speed.
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01-31-2009 05:50 PM
Dude here is some testing
http://www.youtube.com/watch?v=DRzyw0Jo8Zg
The first one is Airex R63.80 Next is A 400 then A 600 Corecell Then 2 Cross linked foams and the two Balsa samples Structural cores are not Poured !!They are made in very controlled conditions and should never be confused with the Cheap two part systems AS they start life as a Real Engineering Plastic. BTW water will not hurt them for say 300 years Hell Airex is PVC.Slippery when wet. PODLESS TUNNEL www.cheetahcat.com ,Repairs, Modifications and Truing Cheap reliable speed.
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01-31-2009 06:12 PMnice demo. what was that third core? looked like divinacell?? and i assume the last is balsa? heres a few pics of a project we've been just finishing
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01-31-2009 07:29 PMSlippery when wet. PODLESS TUNNEL www.cheetahcat.com ,Repairs, Modifications and Truing Cheap reliable speed.
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- Join Date
- Nov 2008
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01-31-2009 08:08 PM
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01-31-2009 09:20 PMSlippery when wet. PODLESS TUNNEL www.cheetahcat.com ,Repairs, Modifications and Truing Cheap reliable speed.
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01-31-2009 10:23 PM
Yah the new engineered cores are amazing, and let's get off the older technology two-part foams for a completely different type of boat. I did not know the new Airex had so much elasticity. Is the stiffness still as high as the others? Whats the loading and panel width?
What are you guys' thoughts on transom cores?
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01-31-2009 11:01 PM
Great info. Thanks for the education.
Jim
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01-31-2009 11:07 PM
Coosa has some material Mantex has been around for a while.
Airex lets put it this way; I built a 1188 pound 36 foot 9 foot beam Cat from it in 91 and I can do much better nowadays. Stiffness S-Glass or S glass Carbon blend would I imagine produce the best numbers depending on the facings filiment content.Slippery when wet. PODLESS TUNNEL www.cheetahcat.com ,Repairs, Modifications and Truing Cheap reliable speed.
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01-31-2009 11:23 PM
We've done Coosa and plywood. 0 failures.
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01-31-2009 11:28 PM
Some of our new work. I have a talented partner!
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Slippery when wet. PODLESS TUNNEL www.cheetahcat.com ,Repairs, Modifications and Truing Cheap reliable speed.
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