the vector fin proa

[fritz roth]

.

.... if you are going out with a regular 8' dingy ....

you will soon notice that >

either you are going slow
or you are making a big wake !


now take a trip on a 16' kayak
there things are already better

but its a hassle to get in and out !

or take a 32' skuller >
the best in speed
but you need to stabilise your self constantly
with your skulls !

now put a sail on your dingy !

notice the preformance > like above >
your are either going slowly
or are making a big wake >

meaning energy is wasted !


or if you increase the lenght
you have a hell of a problem !

keeping your boat from ..........

so ?

you need an out rigger to have both !!!




cont >>>>>>>>

[marshmat]

Umm.... maybe it's just me, but this seems a bit nonsensical? Are you trying to sell us something (if so, what?) or are you just promoting proas in general? What's the deal?

[Chris Ostlind]

Herr Roth,

This is just the teaser to the richly presented proa saga, is it not?

When are you going to show us the pictures?

[Mikey]

Well, get on with it. But who needs a vector fin? Waan Aelon Kein seems to sail just fine with just the thousand years of experience it is built upon

[fritz roth]

.



.... if you just want to ..... paddle around
with your long and easily driven hull >>

and do this safely >

then all you need is an out rigger with a log on one side
like the polynesians have done so for centuries !

but if you just try and surf with this
having the log on the lee ward side

then on the bottom of the wave the log
may just be going on and on ............... down ward !

so ? .... what do you do ?

make your vessel going both ways !
then you can always use the log on the right
meaning the >

>>> wind ward side <<<< !

or the wave ward side .....

then you have a basis for making your sailing vessel
as well

the most ideal configuration ....


cont >>>>>

[Mikey]

Originally Posted by Oscar Wilde

All bad poetry springs from genuine feeling

Don't stop though I could wait with opening my presents until Christmas when I was a kid so I can wait now.
Just don't understand why

Mikey

[fritz roth]

.


..... now ...

you take your 8' sabot out on the bay ....

in 15 ktns of wind !

and you will plane along like a charme !
with a wake like a destroyer ....

but as soon as you will have any waves it all
the fun will be over !


but if you take out a 16'x 2' hull with an out riger on
it will be a lot better already !

like a beach cat .... but half the weight ....

and now imagine 24' long x 16" !
no wake to speak of any more ....

and any wave will just be parted with no fuss it all
and your ride will be as smooth as with ....

a boat being twice as long !



cont >>>>

[Mikey]

Originally Posted by Oscar Wilde

A poet can survive everything but a misprint

I suppose there were a whole lot of misprints, right?

Keep them coming, Fritz, keep them coming

Mikey
"I'll be back on Monday"

[fritz roth]

.

....... now .....

if you just want to sail in moderate winds
for a few hours along the way .......

you will have no problems with your polynesian proa !

but if gusty conditions prevail
or you want to eat some lunch in peace .....

with out constantly watching out for your balance !
then you need some devise to do this for you ....

just put your lateral area as well to wind ward
and shape it >>

so it will take all the wind forces
what ever the waves will do to your boat !

then you will have your speed
from your lite and slim vessel

and have the stability as well !

see www.proadesign.com and links for more .....

.

[kach22i]

Without this thread I would never of found out that a proa is. I mean I' ve known since childhood what an outrigger was, just never heard or read the term proa before.

Is there a difference between a proa and an outrigger?


http://www.harryproa.com/

http://www.sailingcourse.com/sailing_html.htm

A Proa does not turn by tacking or jibing. It turns by shunting. Throughout this maneuver the passenger hull stays towards the wind. The mast rotates 180 degrees and the sails reverse direction. The back of the boat becomes the front and the boat begins to sail in the opposite direction.

[Mikey]

Originally Posted by Oscar Wilde

I put all my genius into my life; I put only my talent into my works

I suppose that was work and not life

Mikey

[Mikey]

It's over, there is no cont >>>>!

Sad, I have a few quotes left, the next one was supposed to be nice too. Well, never mind, here it comes

Originally Posted by Oscar Wilde

He lives the poetry that he cannot write. The others write the poetry that they dare not realise

In a way, that could apply to many proa sailors actually. Well almost, just replace dare not with can not.

A proa doesn't need expensive sails, rig, winches and other equipment (loads on sails and rig are low so there is no need for expensive materials or equipment). They are generally very cheap and also easy to build. Most proa sailors have built their proas themselves, many of they would not be out sailing if they had not. A sailing boat is not a cheap hobby. Proas are fast and it's an interesting sailing experience for the price.

Someone building a proa for a few thousand dollars gets to sail much more than he who aims too high and thereby gets nothing...

I am not so sure about the Harryproa style proas though, the simplicity is taken away and it's not cheap any longer, it's simply too much money. You really have to be a proa enthusiast to buy something like that.

Mikey

[Mikey]

Difference between proa and outrigger

The outrigger is just the outrigger, it can be a log or a hull, anything that acts as a float.

Proa is a sailing boat that "tacks" by shunting, you wrote it yourself, if --->

Originally Posted by kach22i

The back of the boat becomes the front and the boat begins to sail in the opposite direction

---> then it's a proa.

A pacific proa has the outrigger (ama) to windward and an atlantic proa has it to lee. A proa can have more than one outrigger, few do but it's possible.

Mikey

[nero]

Harryproa not cheap? They use a lot less material than you think. Hull thickness is amazingly thin. Except for his fondness of uni carbon, Rob keeps everything to a minimum. They are designed for an amature to build.

[Mikey]

http://www.harryproa.com/brokerage.htm

According to that link, a new Elementarry ex factory is AUS$25,000

Never sailed one but I bet it is extremely fast, extremely fun to sail, and extremely extreme, but it's also AUS$25,000 for that little boat in the picture.

All proas use little material to build, I don't see the advantage with that the hull is super thin

Mikey