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From: Simon de Vet
Subject: Solar Sail
Date: 4 Sep 2000 00:21:53
Message: <39B323A3.7548E644@istar.ca>
Something I've been working on for the last few days.

It was originally inspired by the tropical lionfish, then by insects,
and now I've been told it looks like an umbrella. Ah well...

The cylindrical hull is just a junk object, to give a sense of the size
of the final hull. Most of the model is untextured.

Suggestions?


Simon


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Attachments:
Download 'strutssail.jpg' (52 KB) Download 'strutsfront.jpg' (52 KB) Download 'strutsrear.jpg' (51 KB)

Preview of image 'strutssail.jpg'
strutssail.jpg

Preview of image 'strutsfront.jpg'
strutsfront.jpg

Preview of image 'strutsrear.jpg'
strutsrear.jpg


 

From: Anton Sherwood
Subject: Re: Solar Sail
Date: 4 Sep 2000 03:49:43
Message: <39B355CC.8D9D2F3B@pobox.com>
Quick, Robin, to the Batspaceship!

Hm, perhaps someday I'll dust off the old sketches (~1979) of a flying
animal dubbed the `squidbat', whose skeleton is loosely based on a human
hand.

-- 
Anton Sherwood  --  br0### [at] p0b0xcom  --  http://ogre.nu/


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From: Rick [Kitty5]
Subject: Re: Solar Sail
Date: 4 Sep 2000 06:14:51
Message: <39b3761b@news.povray.org>
impressive detail, just make sure the next flyby you do, flies real close
(to show off your work!!)



Rick


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From: Bob Hughes
Subject: Re: Solar Sail
Date: 4 Sep 2000 08:31:30
Message: <39b39622$1@news.povray.org>
Really neat stuff, I hadn't guessed from your animation it was that
detailed.  The lionfish texturing is strange, but adds that organic quality
to a otherwise mechanical-only object.

Bob


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From: Simon de Vet
Subject: Re: Solar Sail
Date: 4 Sep 2000 09:21:12
Message: <39B3A22A.9C969B87@istar.ca>
Bob Hughes wrote:

> Really neat stuff, I hadn't guessed from your animation it was that
> detailed.  The lionfish texturing is strange, but adds that organic quality
> to a otherwise mechanical-only object.

:)

That's probably because my flyby wasn't that detailed. Most of this work was
done late (11:00pm - 3:30am) on saturday night.

I like the texturing too... I don't have any rigorous explanation for why it
would be painted liek that, but anything else looks weird.


Simon


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From: Tony[B]
Subject: Re: Solar Sail
Date: 4 Sep 2000 09:45:08
Message: <39b3a764@news.povray.org>
Great detail, Simon. Way to go!


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From: Christoph Hormann
Subject: Re: Solar Sail
Date: 4 Sep 2000 09:59:59
Message: <39B3AB20.85FEFFD1@schunter.etc.tu-bs.de>
Simon de Vet wrote:
> 
> Something I've been working on for the last few days.
> 
> It was originally inspired by the tropical lionfish, then by insects,
> and now I've been told it looks like an umbrella. Ah well...
> 
> The cylindrical hull is just a junk object, to give a sense of the size
> of the final hull. Most of the model is untextured.
> 
> Suggestions?
> 
> Simon
> 

I remembered having seen something similar in a star trek episode some time ago
and did some research:

http://clgray.simplenet.com/strtrk/stpics/otherstr/lightship.jpg

Not a very good picture, but i did not find anything better.  Maybe there are
some inspirations for you.  

Your model seems to lack some sort of steering sail, but the detail work near
the center is really impressive.  

Christoph

--
Christoph Hormann <chr### [at] gmxde>
Homepage: http://www.schunter.etc.tu-bs.de/~chris/


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From: Simon de Vet
Subject: Re: Solar Sail
Date: 4 Sep 2000 10:17:57
Message: <39B3AF73.66532F1F@istar.ca>
Christoph Hormann wrote:

> I remembered having seen something similar in a star trek episode some time ago
> and did some research:
>
> http://clgray.simplenet.com/strtrk/stpics/otherstr/lightship.jpg

I've seen this, but I'm trying to avoid it as much as possible. I posted my images
on www.scifi-art.com, and was told that mine was one of the first solar sails that
wasn't a derivative of the trek sail. I like the ship a lot, though...

> Your model seems to lack some sort of steering sail, but the detail work near
> the center is really impressive.

I've been debating this a bit on www.scifi-art.com. Some think that a solar
'rudder' would not work, and others that it would work, but would require a huge
turning radius (couple of lightyears. Ouch.). Some have reccomended chemical
thrusters for navigation, but I'd rather stick to light as much as possible.

Anyone have steering ideas?


Simon


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From: Chris Huff
Subject: Re: Solar Sail
Date: 4 Sep 2000 10:23:21
Message: <chrishuff-347F06.09250004092000@news.povray.org>
In article <39B323A3.7548E644@istar.ca>, sde### [at] istarca wrote:

> Something I've been working on for the last few days.
> 
> It was originally inspired by the tropical lionfish, then by insects,
> and now I've been told it looks like an umbrella. Ah well...
> 
> The cylindrical hull is just a junk object, to give a sense of the size
> of the final hull. Most of the model is untextured.

Nice! I don't think it resembles an umbrella much...but it does seem out 
of scale. To get useable propulsion from the solar wind, the sails 
should be *much* larger, like 10-50 times.

-- 
Christopher James Huff
Personal: chr### [at] maccom, http://homepage.mac.com/chrishuff/
TAG: chr### [at] tagpovrayorg, http://tag.povray.org/

<><


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From: Christoph Hormann
Subject: Re: Solar Sail
Date: 4 Sep 2000 10:39:42
Message: <39B3B46A.2D2F9683@schunter.etc.tu-bs.de>
Simon de Vet wrote:

[...]

> I've been debating this a bit on www.scifi-art.com. Some think that a solar
> 'rudder' would not work, and others that it would work, but would require a huge
> turning radius (couple of lightyears. Ouch.). Some have reccomended chemical
> thrusters for navigation, but I'd rather stick to light as much as possible.
> 
> Anyone have steering ideas?
> 

I think a 'rudder' would not work, but some kind of third sail in the front,
more flexible than the two main sails would be worth trying.

BTW, the total shape of the sails probably has to be highly symmetrical if it
sould be realistic.  Both your model and the star trek model have some vertical
asymmetry, that makes it look impressive but unable to fly a straight course.  

Christoph

--
Christoph Hormann <chr### [at] gmxde>
Homepage: http://www.schunter.etc.tu-bs.de/~chris/


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