Subject: [harryproa] Re: Niggling practical proa questions
From: "Robert" <cateran1949@yahoo.co.uk>
Date: 2/10/2009, 5:30 PM
To: harryproa@yahoogroups.com.au
Reply-to:
harryproa@yahoogroups.com.au

--- In harryproa@yahoogroups.com.au, "jjtctaylor" <jtaylor412@...> wrote:
>
> Couple of quick responses:
>
> Nav Lights have to be changed thus requires duplication.
>
> The autopilots require duplication as well using wheelpilots on each
> wheel. The new Raymarine X5 eliminated the rudder sensor which is
> good deal for us.

Not sure if you really need two autopilots if set up really carefully;
swap and reset each time. Probably be easier to have two and you have
a bit of redundancy when they stuff up.

>
> Wind sensor has to be duplicated.

Don't see why. Simple arithmetic to adjust. If using analogue, take a
texta and mark the angles for the other direction

Technically with wings on mine
> only need windspeed, tail rudders take care of angle automatically,
> no sail trim. Wings only care about apparent wind.
>
> The radar has a solution, the electronic bearing line EBL and offset
> can be electronically adjusted through most chartplotters. Challenge
> is you have to buy radar by same vendor as chartplotter or you do not
> get the configuration screens. Just have to remember to do it after
> shunt.
>
> Most compasses will have to be moved around and declination tables
> created for going both directions.

> Water speed can also have issues. The little paddle wheels are not
> shaped for going both directions. You can get a special wheel for
> some.
>
> Forget the masthead light. Get a steaming light, mine is on the helm
> bimini top. But you need two of them..... more duplication.
>

I am concerned that the lights may not be visible with the sails up.
and the lw hull is a bit low until the beam. I figure on duplication
and flick a switch at the shunt. Possibly automatically as you change
steering.

> Any others have solutions ?
>
> JT
>
>
> --- In harryproa@yahoogroups.com.au, Gardner Pomper <gardner@>
> wrote:
> >
> > Hi,
> > I haven't seen mention of some of the issues with proas having
> > interchangeable bows. I assume these have all been solved, but I am
> curious
> > how:
> >
> > 1) bow and stern lights - red and green have to be reversed after
> shunting.
> > I assume duplicate sets of lights, but it is a manual operation to
> remember
> > each time?
> >
> > 2) autopilots - don't these get really confused after a shunt? Do
> they also
> > need to be duplicated? (expensive)
> >
> > 3) radar/chartplotters, etc ... the same basic questions
> >
> > 4) masthead lights? i think i saw a post somewhere that rob
> mentioned he
> > didn't care for masthead lights, although a central tube up the
> masts could
> > be mounted to keep the lights from rotating with the mast, but
> where else
> > can you put the lights without the sails obscuring them?
> >
> > Thanks!
> >
> > - Gardner Pomper
> > York, PA
> >
>

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