Info On Unique UK Sail Design. Anyone, Please
 

Hello,

A few years ago I saw a brief thing on TV about a guy in the UK who
built a very cool sail for his catamaran or trimaman --can't remember
which one. It looked like a 15/20ft. tall cylinder where the mast
would normally be. You steered the thing pretty much like a car.

Does anyone know anything about this or the person who invented and
built it?

Any help would be greatly appreciated. Thanks in advance.

Info On Unique UK Sail Design. Anyone, Please
 

Jaques Cousteu had a boat like that in the late 80s. The wind somehow
spun the cylinder which turned a propellor. The boat was able to sail
directly into the wind but didn't perform as well as sail on other
points.

Hello,

A few years ago I saw a brief thing on TV about a guy in the UK who
built a very cool sail for his catamaran or trimaman --can't remember
which one. It looked like a 15/20ft. tall cylinder where the mast
would normally be. You steered the thing pretty much like a car.

Does anyone know anything about this or the person who invented and
built it?

Any help would be greatly appreciated. Thanks in advance.

Info On Unique UK Sail Design. Anyone, Please
 

Try "rotating cylinder sails" in Google

"Punchy99" wrote in message
m...
Hello,

A few years ago I saw a brief thing on TV about a guy in the UK who
built a very cool sail for his catamaran or trimaman --can't remember
which one. It looked like a 15/20ft. tall cylinder where the mast
would normally be. You steered the thing pretty much like a car.

Does anyone know anything about this or the person who invented and
built it?

Any help would be greatly appreciated. Thanks in advance.

Info On Unique UK Sail Design. Anyone, Please
 

Hi

"Drew Dalgleish" skrev i en meddelelse
...
Jaques Cousteu had a boat like that in the late 80s. The wind somehow
spun the cylinder which turned a propellor. The boat was able to sail
directly into the wind but didn't perform as well as sail on other
points.


Now these sails work without any propellor. By rotating the cylinder a more
dense vaccum on one side of the cylinder is created , ------ quite a few
know about these types of "sails" and the first ones was tested out just
after W.W.1 and acturly when well constructed they are as good as
tradisional sails, but the weight of the cylinder and different other issues
concerning strength made it into an idear reinvented each 20 year.
They work, but it is a common misunderstanding, that the rotating cylinder
need drive a propellor ------ this is not the force that work with a
rotating cylinder sail.
P.C.

Info On Unique UK Sail Design. Anyone, Please
 

It works on the principle of ""Magnus Effect".
Irfan

"Punchy99" wrote in message
m...
Hello,

A few years ago I saw a brief thing on TV about a guy in the UK who
built a very cool sail for his catamaran or trimaman --can't remember
which one. It looked like a 15/20ft. tall cylinder where the mast
would normally be. You steered the thing pretty much like a car.

Does anyone know anything about this or the person who invented and
built it?

Any help would be greatly appreciated. Thanks in advance.

Info On Unique UK Sail Design. Anyone, Please
 

Info On Unique UK Sail Design. Anyone, Please
 

Dunno that it's what the poster was asking about. The Walker Wingsail is
pretty much a vertical airplane wing with an "elevator" trailing it on a
boom. I don't think anyone would describe it as a "cylinder." I seem to
recall a cylindrical turbine being used experimentally, driving a propeller.

--
Karin Conover-Lewis
Fair and Balanced since 1959
klc dot lewis at centurytel dot net


"Jeff" wrote in message
...
(Punchy99) wrote in
news:366b0157.0404201514.b7a4fd6
@posting.google.com:

Hello,

A few years ago I saw a brief thing on TV about a guy in the UK who
built a very cool sail for his catamaran or trimaman --can't remember
which one. It looked like a 15/20ft. tall cylinder where the mast
would normally be. You steered the thing pretty much like a car.

Does anyone know anything about this or the person who invented and
built it?

Any help would be greatly appreciated. Thanks in advance.


Walker WingSail, loads of stuff on google.

Info On Unique UK Sail Design. Anyone, Please
 

"Karin Conover-Lewis" wrote in
:

Dunno that it's what the poster was asking about. The Walker Wingsail
is pretty much a vertical airplane wing with an "elevator" trailing it
on a boom. I don't think anyone would describe it as a "cylinder." I
seem to recall a cylindrical turbine being used experimentally,
driving a propeller.


True, Walker made several versions however, some earlier versions looked
cylindrical with a trim tab. A Wingsail equiped tri was a feature of
several UK TV programs during the eighties in which they emphasised the low
height of the rig and the fact that it was 'driven' like a car, wheel and a
foot pedal for power., even to the extent of sialing backward and forward
to 'parallel park' against a dock. Shame it didn't take off.

Info On Unique UK Sail Design. Anyone, Please
 

It is a Walker rig. I sailed on that boat 10 years ago in Miami. Nice
concept and it works but not exactly designed along the lines of the
KISS principle . . .
Do a search with Walker Wingsail Systems or Planesail Yachts.

Jacques at bateau.com

"Irfan Yuksel" wrote in message ...
It works on the principle of ""Magnus Effect".
Irfan

"Punchy99" wrote in message
m...
Hello,

A few years ago I saw a brief thing on TV about a guy in the UK who
built a very cool sail for his catamaran or trimaman --can't remember
which one. It looked like a 15/20ft. tall cylinder where the mast
would normally be. You steered the thing pretty much like a car.

Does anyone know anything about this or the person who invented and
built it?

Any help would be greatly appreciated. Thanks in advance.

Info On Unique UK Sail Design. Anyone, Please
 

On Wed, 21 Apr 2004 19:07:55 GMT, Jeff vaguely
proposed a theory
.......and in reply I say!:
remove ns from my header address to reply via email

True, Walker made several versions however, some earlier versions looked
cylindrical with a trim tab. A Wingsail equiped tri was a feature of
several UK TV programs during the eighties in which they emphasised the low
height of the rig and the fact that it was 'driven' like a car, wheel and a
foot pedal for power., even to the extent of sialing backward and forward
to 'parallel park' against a dock. Shame it didn't take off.

Was this on a cat? If so Bah! _Anyone_ can sail a cat backwards! G
************************************************** **
I went on a guided tour not long ago.The guide got
us lost. He was a non-compass mentor.........sorry
.........no I'm not.

Info On Unique UK Sail Design. Anyone, Please
 

Old Nick says:

Was this on a cat? If so Bah! _Anyone_ can sail a cat backwards! G

Sour grapes, Nick?

;-)

Steve

Info On Unique UK Sail Design. Anyone, Please
 

Thanks very much from everyone!

Info On Unique UK Sail Design. Anyone, Please
 

On 22 Apr 2004 01:20:54 GMT, ospam (Stephen Baker)
vaguely proposed a theory
.......and in reply I say!:
remove ns from my header address to reply via email

When I had a 23' cat (International 23), I used to have to navigate
through many boats to get to my mooring. The process was interesting.
I have done 18 knots in that cat in a good breeze........and probably
that through the moorings a couple of times; she could accelerate G.

But she had no weigh at all. 500 Kg or so of boat with a 9 metre mast,
3.5 m boom and you had to have the jib up to navigate or go about! Say
30 m2 of sail? Can't remember, but a quick calc gives me that.

I had to learn that to attach to the mooring, you sailed up to it in a
close reach (but not too close), with the windward hull pointed
straight at the buoy, and headed up _fast_, so that you just overshot
the mooring, with the buoy between the hulls. The crew then had time
to grab the buoy as it came back past the bow! If you sailed too high
for that particular breeze, the cat would end up slightly downwind
(she had shoal keels, almost skegs, and slipped a bit in light
breezes) and you had another go, picking your way back out through the
boats again. That was where I learned to reverse a cat.

Add to this that where I was moored there could be a 2 knot current,
and that on certain days of fresh breeze the other boats required
several changes of course in maybe 50 metres of sailing, and twer
easier for the proverbial camel....

I am sure that people living on the nearby shores came to watch my
approach with a sort of amused dread. I did not suffer silently....

And where was the outboard in all this? Well, you know...outboards.
Never work. Apart from that it was a 6 (?) hp Johnson. I tried a 9hp
but only had a short leg one, which spent most of its time gulping
water, and I had little money. The 6 was way under powered in a
breeze. A 15-20 might have done the job!

Was this on a cat? If so Bah! _Anyone_ can sail a cat backwards! G

Sour grapes, Nick?

;-)

Steve

************************************************** **
I went on a guided tour not long ago.The guide got
us lost. He was a non-compass mentor.........sorry
.........no I'm not.