[frers-list]Fwd: Cored Hull Issues?
FRANCIS ALBERT
frers-list@lists.frers33.com
Thu, 3 Sep 2009 17:50:18 -0700 (PDT)
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I'm not sure if the Frers 33=A0had core material=A0below the water line=A0b=
ut I don't believe it did.=A0 Below is a=A0portion of a review of the Frers=
33.=A0
=A0
=A0
The hull and deck of the Frers 33 were built utilizing a composite construc=
tion of fiberglass and resin laminates on either side of a core material. T=
he hull is cored with balsa throughout. Because balsa is subject to failure=
under high compression loads, deck areas subject to high compression loads=
are cored with plywood, and other deck areas are cored with balsa for its =
lighter weight.=20
When core material is introduced into a fiberglass composite, production qu=
ality control becomes considerably more important. Carroll Marine Ltd. has =
considerable experience building boats utilizing core materials and, for th=
e most part, seems to do an outstanding job. My experience with the Frers 3=
3 has shown no problems with the hull composites, although I have noted som=
e failures of the athwart ship floor between the head and the hanging locke=
r and some secondary bonding failures at the main structure bulkhead port a=
nd starboard of the mast. My experience has shown mild to moderate delamina=
tion and moisture penetration of the decks which further emphasizes the abs=
olute necessity for properly mounting deck hardware on any cored deck.=20
--- On Thu, 9/3/09, Mark Dixon <econmar@sbcglobal.net> wrote:
From: Mark Dixon <econmar@sbcglobal.net>
Subject: Re: [frers-list]Fwd: Cored Hull Issues?
To: frers-list@lists.frers33.com
Date: Thursday, September 3, 2009, 5:12 PM
Hi Jeremy.=A0 In looking at those photos in the article, I see issues where=
the author only used info that supports his theories. To wit, look at the =
photo withthe diamond plate non skid..... I haven't seen any like thatsince=
a 70s vintage Taylorcraft! (Ugh).=A0 I wouldn't be overly concerned about =
generic into but more about the boat you're looking at, and its survey.
Where or what boat are you looking at? Where do you sail?
If I'm not mistaken, the F33 is balsa cored to the waterline and solid glas=
s below.
Regards, Mark
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<table cellspacing=3D"0" cellpadding=3D"0" border=3D"0" ><tr><td valign=3D"=
top" style=3D"font: inherit;"><DIV>I'm not sure if the Frers 33 had co=
re material below the water line but I don't believe it did. =
; Below is a portion of a review of the Frers 33. </DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV>The hull and deck of the Frers 33 were built utilizing a composite con=
struction of fiberglass and resin laminates on either side of a core materi=
al. The hull is cored with balsa throughout. Because balsa is subject to fa=
ilure under high compression loads, deck areas subject to high compression =
loads are cored with plywood, and other deck areas are cored with balsa for=
its lighter weight. <BR><BR>When core material is introduced into a fiberg=
lass composite, production quality control becomes considerably more import=
ant. Carroll Marine Ltd. has considerable experience building boats utilizi=
ng core materials and, for the most part, seems to do an outstanding job. M=
y experience with the Frers 33 has shown no problems with the hull composit=
es, although I have noted some failures of the athwart ship floor between t=
he head and the hanging locker and some secondary bonding failures at the m=
ain structure bulkhead port and starboard of the mast. My experience
has shown mild to moderate delamination and moisture penetration of the de=
cks which further emphasizes the absolute necessity for properly mounting d=
eck hardware on any cored deck. <BR></DIV>
<DIV><BR><BR>--- On <B>Thu, 9/3/09, Mark Dixon <I><econmar@sbcglobal.net=
></I></B> wrote:<BR></DIV>
<BLOCKQUOTE style=3D"BORDER-LEFT: rgb(16,16,255) 2px solid; PADDING-LEFT: 5=
px; MARGIN-LEFT: 5px"><BR>From: Mark Dixon <econmar@sbcglobal.net><BR=
>Subject: Re: [frers-list]Fwd: Cored Hull Issues?<BR>To: frers-list@lists.f=
rers33.com<BR>Date: Thursday, September 3, 2009, 5:12 PM<BR><BR>
<DIV class=3DplainMail>Hi Jeremy. In looking at those photos in the a=
rticle, I see issues where the author only used info that supports his theo=
ries. To wit, look at the photo withthe diamond plate non skid..... I haven=
't seen any like thatsince a 70s vintage Taylorcraft! (Ugh). I wouldn=
't be overly concerned about generic into but more about the boat you're lo=
oking at, and its survey.<BR>Where or what boat are you looking at? Where d=
o you sail?<BR>If I'm not mistaken, the F33 is balsa cored to the waterline=
and solid glass below.<BR>Regards, Mark<BR>_______________________________=
________________<BR>frers-list mailing list<BR><A href=3D"http://us.mc811.m=
ail.yahoo.com/mc/compose?to=3Dfrers-list@lists.frers33.com" ymailto=3D"mail=
to:frers-list@lists.frers33.com">frers-list@lists.frers33.com</A><BR><A hre=
f=3D"http://lists.frers33.com/mailman/listinfo/frers-list"
target=3D_blank>http://lists.frers33.com/mailman/listinfo/frers-list</A><B=
R></DIV></BLOCKQUOTE></td></tr></table>
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