Subject: Re: [harryproa] Re: 15m schooner underway |
From: Rob Denney |
Date: 5/15/2013, 10:00 PM |
To: harryproa@yahoogroups.com.au |
Reply-to: harryproa@yahoogroups.com.au |
There is a best separation, but I don't know what it is. I set up El with the booms as long as possible, in the hope that the foresail would act like a jib. Was only relevant hard on the wind and juudging by the lack of force in the aft sail sheet, may not have been correct.
Hi Rob,
I am interested in how you (you and owner/builder) are planning to space the two masts apart.
Is there any ideas on optimum separation for sailing efficiency?
On Sidecar it was restricted a bit so that there was no gap left from boom 1 to mast 2.
In doodling a bigger boat it seems like one could squeeze a metre or two of open air in between.
This could be a major change on how fast you go (in certain conditions).
Dou
Perth
--- In harryproa@yahoogroups.com.au, Rob Denney <harryproa@...> wrote:
>
> On Mon, May 13, 2013 at 5:54 PM, Doug Haines <doha720@...> wrote:
>
> > **
> >
> >
> > The savings of taping is good too.
> >
>
> Would be if it had happened. Needs a bit more work to make it time
> effective as well as materials effective. Working on it.
>
> >
> > though you still have fiddly parts to go.
> >
> True, but not as many as most boats. The bunks are in, the seats and
> galley are mostly folded up from flat panels and the bulk of the cabin top
> is a flat sheet, bent.
>
> > I think people over engineer when doing a bit of amatuer designing at home.
> > Eg rudder, beam to hull joins.
> > Feels safer to add more.
> >
>
> Not just amateurs, a lot of pro designers and builders also add a little
> more to feel safer. No problem if it is not their money being spent.
>
> >
> > Is this (FlashHarry) a schooner or single?
> >
> Schooner. 2 masts the same as the ones on Rare Bird/Blind Date, but with
> no jibs, so about 50% more sail area.
>
> rob
>
> >
> > Doug
> >
> > --- In harryproa@yahoogroups.com.au, Rob Denney <harryproa@> wrote:
> > >
> > > On Fri, May 10, 2013 at 4:27 PM, Doug Haines <doha720@> wrote:
> > >
> > > > **
> > > >
> > > >
> > > > Hi Rob,
> > > >
> > > > Thanks for the update pics.
> > > > It looked like a thick piece of plywood in the first pic, but obviously
> > > > light brown coloured foam.
> > > > Pretty thick at 15mm?
> > > >
> > > It's a big boat, with some big spans, although most of them are
> > reinforced
> > > with furniture etc, so 15mm.
> > >
> > > > How was the glassing done - one side under pressure then bend while
> > other
> > > > side is wet?
> > > >
> > >
> > > For the hull bottom, yes. The rest was glassed both sides then vacuumed.
> > >
> > > >
> > > > This was the major attraction to going flat panel for me. No worries
> > > > bending to shape.
> > > >
> > > Agreed. The lee hull will be built with a flat bottom.
> > >
> > > > I know the straps can pinch in to make undulations - you obviously used
> > > > some aluminiukm beams to try and spread the load at the edges.
> > > >
> > > Yes, may have been better with holes through the topsides and pulled the
> > > shape from gunwh'l to gunwh'l rather than around the hull.
> > >
> > > > I think you had a solide glass bilge on the Sol.
> > > >
> > >
> > > Yes. Smaller diameter, but folded pretty easily.
> > >
> > > rob
> > >
> > > >
> > > > Doug
> > > > Perth
> > > >
> > > > --- In harryproa@yahoogroups.com.au, "proaharry" <harryproa@> wrote:
> > > > >
> > > > > Latest update now at www.harryproa.com.
> > > > >
> > > > > Made a couple of bulkheads yesterday on the small table. To speed
> > things
> > > > up, we made them in a stack with a piece of peel ply between them.
> > Laminate
> > > > looks good apart from a couple of bag creases on the table side.
> > However,
> > > > we lost any time savings by spending all morning wedging them apart to
> > > > break the peel ply join. What a struggle! Perforated plastic next time.
> > > > >
> > > > > Installed the bulkheads this afternoon with some help from Jeff, the
> > > > scone king. Looks good. Next big step will be putting the saloon roof
> > on.
> > > > In theory, not too difficult, but the sheer size of it will throw up
> > some
> > > > interesting problems.
> > > > >
> > > > > rob
> > > > >
> > > >
> > > >
> > > >
> > >
> >
> >
> >
>