Hi Rudolf and everyone,
I have considered that. I think it is not a question of balancing alone, becuse it is rather sticky both ways and the rudder stays where it is turned. When pressure on the rudder is high, so is friction. It is the same phenomenon when having pressure from drag. The feeling on the steering wheel when surfing down the waves is quite neutral and light. On the reach and surfing I would like to have more precise steering , so some more foil to the rear or middle of the hull. Rounded hull section does not give much lateral hold on the water. On windsurfing board I was able to steer with my feet, with Vis not.
Now I also have experience about rig balance. It possible to have neutral balance on the rig by flattening the jib. This gives quite equal feeling on both rudders. I rather have pressure slightly in the rear rudder to have lighter steering with fwd rudder.
So far we have maximum speed 15.5 knots from the log and 15 knots on the GPS. This happened with a heavily loaded boat. It goes easily to 14 knots. The boat feels very safe and there is lots of unused potential. The boat feels a bit underpowered in light winds.
In Copenhagen I talked with a TRT1200 sailer about boards etc. He had examined the proportion of having drag from foils or going sideways without foils, end result is one should rather have some foils to be faster.
So I might cut rudders shorter and install daggerboards.
Less rudder area and adjustable foils might lead to easier steering. Lighter steering is required for autopilot. I think one autopilot could be enough. It does not matter whether you are steering with front or aft rudder if lateral balance can be fine adjusted with daggerboards.
-Arttu
"A lone amateur built The Ark. A large group of professionals built the Titanic "
--- In harryproa@yahoogrou
>
> Hi Arttu,
>
> Could it be that steering is heavy because the rudder needs more balance?
> That way the load would be in the middle of the shaft and not influence steering loads.
>
> regards,
>
> Rudolf
> ----- Original Message -----
> From: arttuheinonen@
> To: harryproa@yahoogrou
> Sent: Friday, July 31, 2009 8:25 PM
> Subject: Re: [harryproa] Re: Need to charter a Harryproa!
>
>
> Hi ,
>
> We have now experience about living aboard Visionarry with a family of
> four and a dog three weeks, still one week to go. We visited the
> Internationa Multihull Meeting 2009. There were 130 boats. We also
> participated short course race. There were four boats behind us at the
> finish line ( not to mention how many were ahead). We sailed from
> Helsinki to Copenhagen and now we are on a way back home, at the moment
> in Visby. Living has been easy. We had some bad weather when sailing
> from Simrishamn to Ystad around Sandhammaren. That was tight luffing
> upwind in against high wawes. The boat felt solid and th rig worked
> well. We had some exhausting luffing in the end with full main only.
> About living aboard; There is plenty of room. Sometimes quit tight in
> the bridgedeck cabin when going in and out. We have a sliding table
> which is very useful.
> Also could not think about cruising without dinghy ramp. We have also
> used a gangplank a lot. Mooring with bow to land is a nightmare. Bows
> are too narrow and rounded to stand on.
> Steering has worked well now when we got the steering lines tight. Next
> job is to build symmetric profile daggerboards to make steering lighter
> and to be competitive against cats. On downwind and reach we are fast.
>
> Regards,
>
> Arttu + family
>
>
> > Hi,
> >
> > I would say that a family of 3 would be very comfortable on BD.
> > We have spent 2-weeks holidays on an Iroquois catamaran for 6 years in
> a row with a family of 4 and were very happy with it.
> > The Visionarry is much roomier with 2 doubles and one single bunk in
> the ww hull alone, plus a giant galley and standing headroom.
> > That is luxurious to my standards in a way that I would probably
> choose a smaller type.
> > Right now the people responsible in the foundation are on holiday so
> there won't be a reaction from them right away.
> > I will inform them of this question.
> >
> > regards,
> > Rudolf
> >
> >
> > ----- Original Message -----
> > From: Gardner Pomper
> > To: harryproa@yahoogrou
> > Sent: Monday, July 27, 2009 11:37 PM
> > Subject: Re: [harryproa] Re: Need to charter a Harryproa!
> >
> >
> > Hi,
> >
> >
> >
> > That is an interesting thought also. I was under the impression that
> Blind Date didn't really have much in the way of accomodations, and it
> is hard for me to tell from the web site what it would really be like to
> stay aboard for a week. Can you give me your impression of the level of
> "comfort" for a family of 3 for a week, living on Bind Date?
> >
> >
> > - Gardner
> >
> >
> > On Mon, Jul 27, 2009 at 4:17 PM, fvonballuseck
> <fvonballuseck@
> >
> >
> > Hi All,
> >
> > One of the many readers who generally has too little time to write,
> but greatly enjoys the daily comments - but the note below brought a
> thought up. (As a short intro I am Dutch and have sailed mostly in
> around the North sea, the Dutch isles, our local lakes etc -Recently I
> have moved to the east coast in the US) Living in the Nl's actually gave
> me a chance to sail on Blind Date in Nov 2007. A fantastic boat,
> beautifully build, and quite an experience to sail a Harryproa. We had a
> 4 hour downwind sail on a winter morning - which was quite something
> else. If I remember correctly we did about 7-10 knots in 12-15 knots of
> wind. And this was probably the last sail before reconstruction started
> on the rudders.
> > Now as you may know Blind Date is built to charter/day sail with
> visually impaired people - but the foundation is always in need of funds
> - the amounts you are describing would get them quite a long way (at
> least it was when I left - I wanted to support them - both financially
> and as crew). You could consider setting up contact with them and see if
> they are interested for chartering. Probably also depends on when the
> rudders are ready but Rudolph could comment on that. The Netherlands may
> not have the weather of NZ/Aus but has some great scenery and unique
> tidal area's, beautifull former fishing towns, easy to get to, and good
> winds.
> > Fedor
> > Boston, MA
> >
> >
> >
> > --- In harryproa@yahoogrou
> > >
> >
> > > Hi,
> > > Well, we all know that I really want a harryproa, but my wife is
> totally
> > > against my building a boat she has never seen or sailed on. When I
> curb my
> > > enthusiasm, I can certainly see her point. I don't really know what
> the
> > > motion is like, I have never been able to get any kind of polar
> diagrams
> > > showing how she does on anything other than her best point of sail,
> etc.
> > >
> > > It seems that many people on this forum would probably be interested
> in
> > > trying out a harryproa. I was wondering if Rob could pass along a
> request to
> > > the new owners of "Rare Bird", to set up a charter operation for the
> boat,
> > > with obvious checks on the qualifications of potential charterers.
> Failing
> > > that, then perhaps Rob could consider chartering Solitarry, if and
> when
> > > funds become available to build it.
> > >
> > > For my own schedule, I will (hopefully) be starting a new job soon,
> and it
> > > is the end of the childrens summer vacation in the US. I am looking
> to see
> > > if we might be able to get anything together for June or July of 2010.
> > >
> > > From a financial perspective, a Maine Cat 30 charters in the Bahamas
> for
> > > about $3000/wk. It would seem that something like Rare Bird has
> roughly the
> > > same accomodations, but is larger. I would be willing to pay $4000
> US for a
> > > weeks charter in the Great Barrier Reef. If you could get 10-12
> people to
> > > charter one for a week, you have paid for the materials cost. That
> would be
> > > a great rate of return!
> > >
> > > Any takers?
> > >
> > > - Gardner
> > > York, PA
> > >
> >
> >
> >
> >
> >
> >
> >
>
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