-Another point of racking loads, if you are going into sloppy waves,
they are expected to be somewhere about 45 degrees to your direction,
assuming that the slop is caused by the prevailing wind condition. The
different length hulls are a bonus here as they meet the waves closer
to gether than and equivalent cat or tri,
Robert
-- In harryproa@yahoogrou
>
> Do you see a cuase for an extreme load point on beams due to the
> varied length hulls in certain wavelength patterens. Long hull
> causing WW hull to pentrate when instead due to wave length and
> buoyancy of windward hull wanting to rise with the wave or the
> reverse?
>
> Better to have step high an completly clear of certain wave
> condition for given craft or having step lower gradually tapering or
> widening . Is where i'm at on deciding.
>
> Posted a picture in photo's section nonharry information. Model with
> old leeward hull in water with 3 different wave lengths can't
> simulate boat pitch but you can get what my concerns are. Don't no
> how valid my concerns really are.
>
> Todd
>
>
> --- In harryproa@yahoogrou
> wrote:
> >
> > Todd,
> >
> > Yes that is a concern although none have experience on what any of
> these boats will do in
> > a problem seaway. The overhang does curve upward toward the bows
> so that is some
> > help, and terminates near the forward bulkhead. In addition it's
> elevation matches the
> > beam clearance so has some decent height. Plus I will add a
> modest flare or radius to the
> > underside just to avoid a nasty slap or thud in rough seas.
> >
> > Don't think we have any idea which way the boat face if left to
> float on it's own. Will still
> > use a chute or drogue depending on conditions off the bow/stern
> when it's really bad.
> >
> > Rob thinks it may have some benefits in normal conditions in
> reducing spray over the WW
> > hull. Think the radius should minimize the heavy slap. Have a
> suggestion on how much
> > flare/radius ?
> >
> > Regards,
> >
> > JT
> >
> > --- In harryproa@yahoogrou
> > >
> > > Yes that is the one nice work. Do you see any concerns with the
> step
> > > out there being effected by waves and possibly effecting boats
> > > motion in the right/wrong kind of seaway?
> > >
> > > Todd
> > >
> > > --- In harryproa@yahoogrou
> > > wrote:
> > > >
> > > > If you mean the extended Harryproa, no not built yet.
> Extended
> > > > slightly more to 46 ft and 25ft beam, in order to satisfy
> desires
> > > > by "partner" (elsewise known as the boss)to change to galley
> up.
> > > Rob's
> > > > engineering support firm, Netamax is contracted by me to
> finish
> > > the
> > > > plans, then start building right away.
> > > >
> > > > But can't build too fast,.... covered hunderds of miles along
> the
> > > > Carolina coast to find a marina. Severe shortage of slips
> wide
> > > enough
> > > > for cats. Only (1) available and cost as much or more than
> the
> > > boat.
> > > > Have to wait for new marina to be built for affordable
> dockage.
> > > All
> > > > the harbor/dockmasters agree on the problem, demand is just
> > > starting to
> > > > grow. Coastal politics are also playing havoc with marina
> > > expansions so
> > > > expect in the near future to remain an issue for the US
> coastal
> > > areas.
> > > >
> > > > I have alternative layouts if interested. With slips so tight
> > > > preferred not to push over 50 feet, difficult enought to find
> > > slips
> > > > with enough beam. Doesn't seem to be a problem for transients
> as
> > > end
> > > > dock space is usually available but many without services on
> the
> > > end
> > > > of "T" docks. So overnights are OK, just be self sufficient.
> > > >
> > > > Formal plans set won't be ready for another 6 mo or so.
> > > >
> > > > JT
> > > >
> > > > --- In harryproa@yahoogrou
> wrote:
> > > > >
> > > > > I just rejoined your news group and seen a step hull
> rendering
> > > > > recently posted in files section. Was it ever built? The
> step
> > > looks a
> > > > > little high but I guess with that shallow angle to hull it
> would
> > > have
> > > > > to be high. Nice rendering though. I like the step idea to
> > > windward.
> > > > >
> > > > > Todd
> > > > >
> > > >
> > >
> >
>
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