Depends on the water temperature and the state of undress of the participants.
Jim Watts Paradigm Shift C&C 35 Mk III Victoria, BC On 1 March 2014 20:32, Rich Knowles <r...@sailpower.ca> wrote: > All I know is; people on the inside, water on the outside. Works for me. > > Rich > > On Mar 1, 2014, at 22:52, Dennis Cheuvront <capt...@gmail.com> wrote: > > John, > > For more info, go here: < > http://www.fibreglast.com/category/Learning_Center> > > Lots of info on resin infusion, fiberglass fabric, roving, mat, and lots > of stuff you don't want to know about. Articles and videos. > > Dennis C. > Touche' 35-1 #83 > Mandeville, LA > > > On Sat, Mar 1, 2014 at 7:16 PM, j...@svpaws.net <j...@svpaws.net> wrote: > >> Thanks - was confusing the terms mat and roving. Wish the book was still >> in print - will need to find a copy. >> >> John >> >> >> Sent from my iPad >> >> On Mar 1, 2014, at 2:53 PM, Jim Watts <paradigmat...@gmail.com> wrote: >> >> Glass mat and chopped strand are the same thing...CSM. The 34+ was >> probably a layup of CSM, woven roving, and kevlar in a vinylester matrix >> with balsa core. E glass is the same basis as woven roving, just a >> different weave. Cloth is a lighter version of roving. The woven roving in >> the 34+ and the 121 would both be e-glass, although the later boat would >> likely have some biaxial or unidirectional glass in places for better >> engineered strength. For more information, have a look at this... >> http://www.marinecomposites.com/ >> >> >> >> Jim Watts >> Paradigm Shift >> C&C 35 Mk III >> Victoria, BC >> >> >> On 1 March 2014 11:27, j...@svpaws.net <j...@svpaws.net> wrote: >> >>> I'm but an accountant not an engineer. Help me understand this stuff.. >>> >>> So if I use a 1990 34+ as the baseline, the hull was a composite of >>> vinyl resin, presumably glass matt and chopped strand, balsa core and >>> Kevlar. >>> >>> Now fast forward to 2000 and my early 121. The glass Matt has been >>> replaced by E glass, balsa has been replaced by core cell, glass strand >>> remains to add bulk and the Kevlar remains. Presumably this provides a >>> lighter hull as the e glass is stronger than matt, core cell is lighter >>> than balsa and requires less resin and the Kevlar remains the same. >>> >>> Fast forward another 10 years and we have epoxy, reinforced with carbon >>> which does the job of Kevlar, matt, e glass and strand. The core cell >>> remains. >>> >>> Am I even close? >>> >>> John >>> >>> >>> _______________________________________________ >>> This List is provided by the C&C Photo Album >>> http://www.cncphotoalbum.com >>> CnC-List@cnc-list.com >>> >> >> _______________________________________________ >> This List is provided by the C&C Photo Album >> http://www.cncphotoalbum.com >> CnC-List@cnc-list.com >> >> >> _______________________________________________ >> This List is provided by the C&C Photo Album >> http://www.cncphotoalbum.com >> CnC-List@cnc-list.com >> >> > _______________________________________________ > This List is provided by the C&C Photo Album > http://www.cncphotoalbum.com > CnC-List@cnc-list.com > > > _______________________________________________ > This List is provided by the C&C Photo Album > http://www.cncphotoalbum.com > CnC-List@cnc-list.com > >
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