Subject: [harryproa] Re:leeboards |
From: "Robert" <cateran1949@yahoo.co.uk> |
Date: 8/2/2009, 10:28 PM |
To: harryproa@yahoogroups.com.au |
Reply-to: harryproa@yahoogroups.com.au |
- I can see the pin arrangement on a rail allowing for adjustment in
http://www.akzeiger
It would be a bit of a hassle changing angle at each shunt but doable from the cock[pit with suitable strings and pulleys. If you were frequently sailing in very skinny water, then it may well be worth it, but high aspect foils work that much better if there is enough water.
-- In harryproa@yahoogrou
>
> Hi,
>
> A leeboard is something I've thought about a lot.
> I think it might work very well on HP.
> In these parts we have a lot of experience with leeboards traditionally.
> On a HP I see a leeboard as a somewhat triagular shaped board with the base ( the part that is in the water all the time)
> formed by a semi circle. The other sides would have equal length. These long sides would be shaped as leading edges.
> The semicircular end of the board would be the trailing edge.
> In sailing mode the board is canted aft so the trailing edge is looking aft. Pulling it up or down a bit would influence it's COE.
> If that is not enough to get the required balance it is possible to put the pivot on a rail to pull the board in position.
> This is done here on racing boats with leeboards all the time.
> A leeboard does need handling when shunting which gives large rudders alead on that matter.
>
> regards,
> Rudolf
> ----- Original Message -----
> From: Robert
> To: harryproa@yahoogrou
> Sent: Sunday, August 02, 2009 1:30 PM
> Subject: [harryproa] Re: Need to charter a Harryproa!
>
>
> Hi Gardner,
> I do not think a single lee board is adequate as the center of drive is further back than the center of the lee hull. I have been exploring the concept of twin dagger or leeboards to do the bulk of the lateral resistance and then using the rudder for stearage. This way the rudders could be brought closer to the midline of the boat. I keep coming back to the extreme mobility of the present twin rudders. --- In harryproa@yahoogrou
> >
> > Hi,
> > It is great that another Visionarry is sailing. I have a few questions:
> >
> > How close to the wind can you sail before your speed drop precipitously? In
> > other words, when sailing up wind how many degrees do you normally shunt
> > through?
> >
> > Can you estimate speeds on different points of sail? In 15 kts of wind, do
> > you do 5 kts dead downwind, 10 knots on broad reach, 15 kts on beam reach, 5
> > kts on close reach (just an example)?
> >
> > You mention daggerboards.
> > like it would work well on a proa. What do you think?
> >
> > Do you think the rudders are oversized just for the steering function? If I
> > had something else for leeway (daggerboard, stub keel, leeboard), do you
> > think the rudders could be made smaller?
> >
> > Are you saying that you finished in 126th place out of 130 in the short
> > course race? Umm... that doesn't seem so good.
> >
> > Do you get a lot of spray in the cockpit going upwind?
> >
> > How do you use the gangplank? Is it off one hull, to the side? or off a
> > beam, parallel to the hulls?
> >
> > Thanks!
> >
> > - Gardner
> >
> > On Fri, Jul 31, 2009 at 2:25 PM, <arttuheinonen@
> >
> > >
> > >
> > > 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@ <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
> > > Gardner Pomper <gardner@> wrote:
> > > > >
> > > >
> > > > > 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
> > > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > >
> > >
> > >
> >
>