Hi Arto,
The rudders raise and lower with lines - it is quite easy. Doug did them as 2 lines leading to 2 chocks for each rudder, but I changed them to a continuous line leading to a clam cleat. I prefer the latter.
There is a stick coming off the front of the rudder to lower it. Raising is directly from the shaft. One of the problems we had on the first trial was that the rudder sticks were too long which restricted the rudder movement when the sticks hit the hull. Normally there is no need to go to the rudder, but about 5% of the time it will stick a bit and needs a shove,
It would be great to see you if you come. Rayong is nicer and cheaper than Pattaya and not much farther from the marina than Pattaya. I will probably be on a mooring near the marina then as the marina is full and it is a real hassle using a trailer to get in and out.
I agree that the jib is a likely cause of the poor windward ability. Will try without it tomorrow, but that doesn't leave much sail available when winds are light as is normal for Thailand. I plan to redo the rig next year when I have learned a little. Will likely go to a Wharram type wingsail without jib, but that will need a new mast.
Best regards
Herb
--- In harryproa@yahoogroups.com.au, Arto Hakkarainen <ahakkara@...> wrote:
>
> The poor shape of the jib may alone cause the boat to be poor upwind.
>
> Is it much work to lift and lower the rudders when shunting? How is it organised? Lines to pull? Do you have to go to the rudders to lift and lower?
>
> Arto
>
>
> ________________________________
> From: Herb <squirebug@...>
> To: harryproa@yahoogroups.com.au
> Sent: Thursday, October 13, 2011 2:58 AM
> Subject: [harryproa] Re: Sangduennoi
>
>
>
>
>
> Hi Todd,
>
> Sangduennoi has 2 rudders, but they lift instead of rotating, so only 1 can be in the water at a time. It is located a little aft of the end of the main boom.
>
> I think the original sail area was designed to be about 20m^2, but the mast broke last year and was shortened so now both main and jib are at the first reef. I would guess the total area now is about 14 m^2. Rob or Doug do you know for sure?
>
> The shape of the jib is poor both because of the sag and because we rolled it around a plastic pipe to organize it, but I think it is affecting the shape and now it has to be pushed across during the shunt instead of crossing on it's own.
>
> Hope to have useful pictures up next week.
>
> Best regards
> Herb
>
> --- In harryproa@yahoogroups.com.au, "tsstproa" <bitme1234@> wrote:
> >
> > How many boards where down 1 or two? What size sail area was up?
> >
> > Todd
> >
> > --- In harryproa@yahoogroups.com.au, "Herb" <squirebug@> wrote:
> > >
> > > Dear All,
> > >
> > > Sangduennoi (nee Sidecar) entered Thai water for the second time last Sat (8 Oct.)
> >
> > >
> > > Only concern at this point is that we couldn't go to windward at all well. I estimate our best shut was about 120 degrees. This wasn't by compass or GPS, but there are several islands and headlands that make estimating angles pretty easy in the Ocean Marina area (Sattahip near Pattaya - about 12N 100E). Any suggestions on how to improve windward performance?
> > >
> > > Don't have any pictures yet as I accidentally deleted them from the phone.
> > >
> > > Best regards
> > > Herb
> > >
> >
>