 |
|
|
|
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Simon de Vet wrote:
>Anyone have steering ideas?
Wouldn't openening, closing and trimming the sails be enough? Like a quad
line steerd kite?
My first association was "Chitty Chitty Bang Bang", sorry for that.
Ingo
--
Photography: http://members.home.nl/ingoogni/
Pov-Ray : http://members.home.nl/seed7/
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Chris Huff wrote:
> 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.
Is it the total size that important, or the hull:sail ratio?
While there are no overt scale indications, I've been thinking of the hull as
about 500m long, making the sails several kilometers across.
Simon
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Simon de Vet wrote:
>
> Is it the total size that important, or the hull:sail ratio?
>
> While there are no overt scale indications, I've been thinking of the hull as
> about 500m long, making the sails several kilometers across.
>
IMO, it's the total weight/sail area ratio, but i don't know concrete values for
that.
Christoph
--
Christoph Hormann <chr### [at] gmx de>
Homepage: http://www.schunter.etc.tu-bs.de/~chris/
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Good to see you getting into the Sci-Fi Art Forums, Mr NLT. :)
Seriously, this looks really cool, and I didn't catch that it was you when
I first saw it on the forums.
Keep up the good work.
H.E. Day
<><
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Fun, I wanna ride! Where do I sign?
--
David Fontaine <dav### [at] faricynet> ICQ 55354965
Please visit my website: http://davidf.faricy.net/
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
In article <39B3DBF0.17181376@istar.ca>, sde### [at] istarca wrote:
> Is it the total size that important, or the hull:sail ratio?
I think it is neither of those, but sail:mass ratio. You need a lot of
sail to accelerate a kilo of mass at a reasonable speed. This might be
useful for computer-controlled shipments between the inner planets,
Mercury and Venus, possibly Earth, where it doesn't matter if it takes
several years to travel, and cost is the primary problem. For the
planets further out, I doubt it would be useful even for those uses.
Besides, ships in the outer planets region have plenty of hydrogen fuel
for fusion drives available...just make a close pass to Jupiter or
Titan, and scoop up some of the atmosphere on your way by.
--
Christopher James Huff
Personal: chr### [at] maccom, http://homepage.mac.com/chrishuff/
TAG: chr### [at] tagpovrayorg, http://tag.povray.org/
<><
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
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...
I like these sails very much.
How are they done ? Isosurfaces... or ...Blobs ?
Please explain.
> 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?
Maybe you could make a cylindrical hole in the
cylindrical hull. And then maybe round off the
rims of the cylinders with some torii (?)
Tor Olav
--
mailto:tor### [at] hotmailcom
http://www.crosswinds.net/~tok/tokrays.html
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
H. E. Day wrote:
> Good to see you getting into the Sci-Fi Art Forums, Mr NLT. :)
> Seriously, this looks really cool, and I didn't catch that it was you when
> I first saw it on the forums.
Yeah.. I figured that Simon would already be taken, so I went with my old IRC
name [1].
> Keep up the good work.
Thanks!
BTW, I've noticed that you've been posting a lot to the scifi forums that
you've been keeping secret from us :)
Simon
[1] Stands for 'NotLikeTea' [2]
[2] Bonus points if anyone gets the reference.
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
Here's a simpler NASA design:
http://antwrp.gsfc.nasa.gov/apod/ap000526.html
Simon de Vet wrote:
> Anyone have steering ideas?
Offhand: Make the sail in three pie-sectors. Rotate the whole,
slowly. Retract the sail on the side toward which you want to turn.
--
Anton Sherwood -- br0### [at] p0b0xcom -- http://ogre.nu/
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
| |
|
|
On Mon, 04 Sep 2000 11:19:31 -0300, Simon de Vet wrote:
>
>
>Anyone have steering ideas?
>
Make the sails collapsible, or make it possible to turn one of them inside
out if you know what I mean, as if you could push one side of an umbrella
outwards and still have the other half rigid against the wind. This sort
of design would only require the simplest of machinery and would make
turning very quick, and if quick enough then there need only be one set
of collapsible sales, you could always turn in the same direction and
just stop turning when you're facing the right direction.
--
Cheers
Steve email mailto:ste### [at] zeroppsuklinuxnet
%HAV-A-NICEDAY Error not enough coffee 0 pps.
web http://www.zeropps.uklinux.net/
or http://start.at/zero-pps
8:48pm up 14 days, 1:06, 3 users, load average: 1.16, 1.10, 1.08
Post a reply to this message
|
|
| |
| |
|
|
|
|
| |
