Subject: [harryproa] Re: Visionarry shunting
From: "tsstproa" <bitme1234@yahoo.com>
Date: 11/23/2010, 9:14 PM
To: harryproa@yahoogroups.com.au
Reply-to:
harryproa@yahoogroups.com.au

 

Unbalanced proa will cause all kinds of havoc in a sea way let alone near shore. No guessing required. Balance is balance. Just Like seamanship is seamanship. You would think you would know better.... with all the sea miles under your belt!

Todd

--- In harryproa@yahoogroups.com.au, arttuheinonen@... wrote:
>
> Hi ,
>
> The boat is located at Espoo Finland. You are welcome. It is easier to
> turn the fwd rudder than lift it. Thts what I am adjustin all the time.
> I will come to the rudder foils later. They will benefit from some fine
> designing. I am keepin the down all the time, so I migh taper them.
>
> Regards,
>
> Arttu
>
>
> > so too much tiller pressure and an imbalanced helm when under main
> alone. adding a daggerboard aft is one way to fix the latter, but did
> you consider/try raising the front rudder instead? that seems easier to
> me.
> >
> > re. the pressure on the helm: the rudders could be re-designed to have
> more balance area forward of the shaft, or the bottom tip could be raked
> more forward. would the latter be easy on your boat?
> >
> > thanks for the offer to go sailing! i'd love to see a harry in person
> and go for a ride. where are you located?
> >
> > ben
> > new york
> >
> >
> > > I think the reason is that the balance in rudder vs ruddershaft location
> > > gives too much pressure to the helm. it should be more neutral probably
> > > on our boat. If sailing under main sail only fast reach or upwind and
> > > surfing down bigger waves the bow bury combined with all the previous
> > > things can change the balance very suddenly to very windward . Then I
> > > felt it almost broachind and had to steer heavily to lee side. Bigger
> > > rudders cause quite heavy steering loads. It feels very unpleasant when
> > > the boat wants to go when the gust comes. Big rudders is an answer to
> > > this, but I like more to have smaller rudders and adjustable boards. If
> > > I want to sail fast big rudders are not nice.
> > > And opposite: light wind windward high angle slow speed, small rudders
> > > may stall when you steer.
> >
> > > Of course this boat is different to sail than any other and my
> > > experience is limited. There is yet much to learn. Come for a visit so
> > > we can go sailing!! ( in the summertime)
> >
> >
>

__._,_.___
Recent Activity:
Visit Your Group
.

__,_._,___