Tall ship

Sep. 21st, 2005 08:23 pm
ewx: (Default)
[personal profile] ewx
New twist on sailing ships. (But have they actually had one work in practice yet?)

(no subject)

Date: 2005-09-21 07:25 pm (UTC)
From: [identity profile] naath.livejournal.com
I don't see the point. If you wanted wind powered ships surely you'd build sailing ships?

(no subject)

Date: 2005-09-21 07:33 pm (UTC)
From: [identity profile] 3c66b.livejournal.com
This was in New Scientist a while ago (http://www.newscientist.com/channel/mech-tech/mg18524881.600). Efficiency seems to be the answer.

(no subject)

Date: 2005-09-21 07:39 pm (UTC)
ext_8103: (Default)
From: [identity profile] ewx.livejournal.com
There's an advantages (http://skysails.info/index.php?id=121) section...

(no subject)

Date: 2005-09-21 08:07 pm (UTC)
pm215: (Default)
From: [personal profile] pm215
wind-optimised route management

...ie don't try to sail upwind?

(no subject)

Date: 2005-09-21 08:39 pm (UTC)
From: [identity profile] gareth-rees.livejournal.com
It's a scaled up version of kitesurfing (http://en.wikipedia.org/wiki/Kitesurfing).

(no subject)

Date: 2005-09-22 12:13 am (UTC)
From: [personal profile] mikewd
A more plausible form of high tech wind propulsion for ships is the Walker wingsail which although it has had an unfortunate commercial history is technically proven. (An early unit was successfully used on a cargo vessel nearly 20 years ago and one of the yachts using the technology sailed undamaged through a class 3 hurricane whilst crossing the Atlantic).

Hopefully recent rises in oil prices may finally mean that this technology gets the development it deserves.

(no subject)

Date: 2005-09-22 06:32 am (UTC)
From: [identity profile] armb.livejournal.com
There hasn't been anything on that scale, as far as I know, but there are things larger than kitesurfers.

(no subject)

Date: 2005-09-22 06:38 am (UTC)
From: [identity profile] armb.livejournal.com
Ah, here we are: http://www.kiteship.com/
(And http://www.dcss.org/speedsl/ for some more dinghy sized ones.)

(no subject)

Date: 2005-09-27 07:01 am (UTC)
From: [identity profile] arnhem.livejournal.com
The former has just popped up in the news (sadly through failure of the attempt due to too-many-hurricanes):
bbc news item (http://news.bbc.co.uk/1/hi/england/somerset/4282336.stm)

(no subject)

Date: 2005-09-22 11:04 am (UTC)
From: [identity profile] ex-lark-asc.livejournal.com
For the first time SkySails utilises wind energy as a strong and reliable propulsion power. Using this new form of energy [...]

I think Jack Aubrey might have something to say about that rather sweeping statement!

(no subject)

Date: 2005-09-22 11:16 am (UTC)
From: [identity profile] ex-lark-asc.livejournal.com
This is too funny - from the other one: the shipping industry is conservative, Kanstrup warns, and it will need a lot of convincing before it adopts sails - plus ca change..

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