Community > Forum > Technology & Science > Solar Sails

Solar Sails

Posted by: SuperShuki - Wed Jun 02, 2004 12:14 am
Post new topic Reply to topic
 [ 8 posts ] 
Solar Sails 
Author Message
Space Station Commander
Space Station Commander
User avatar
Joined: Mon May 31, 2004 9:47 pm
Posts: 812
Location: Yerushalayim (Jerusalem) - capital of Israel!
Post Solar Sails   Posted on: Wed Jun 02, 2004 12:14 am
They may not be as quick right off the bat as antimatter/matter reactions, but they're about to send up a satellite to test out the idea of solar sails. Anybody got links?


Back to top
Profile WWW
Space Station Commander
Space Station Commander
User avatar
Joined: Sat May 22, 2004 8:59 am
Posts: 578
Location: Zurich
Post    Posted on: Wed Jun 02, 2004 8:00 am
Hmm that was slightly tough, given that you didn't say who "they" are :wink:

But perhaps you meant this ...

http://www.planetary.org/solarsail/update_20040326.html

Slightly off topic for an Xprize forum ... and yet ... strangely cool.

_________________
Per aspera ad astra


Back to top
Profile
Space Station Commander
Space Station Commander
User avatar
Joined: Mon Oct 06, 2003 9:22 pm
Posts: 843
Location: New York, NY
Post    Posted on: Wed Jun 02, 2004 10:00 pm
solar sails are awesome things, and they certainly have more potential for long-distance flights than any other known method of transportation.

_________________
Cornell 2010- Applied and Engineering Physics

Software Developer

Also, check out my fractals


Back to top
Profile
Rocket Constructor
Rocket Constructor
avatar
Joined: Sat Jun 19, 2004 6:26 am
Posts: 9
Post M2P2 drive, new concept in Solar Sailing   Posted on: Sat Jun 19, 2004 6:30 am
check out:

http://www.geophys.washington.edu/Space ... odel/M2P2/

Essentially rather than rolling out a huge sail you just inflate a magnetic bubble with plasma. The bubble will be inflated to miles across and deflection of the solar wind results in a change in momentum of the ship. Personally I can't see why this technology could not be used in the ionosphere to launch a hyperverlocity re-entry vehicle into orbit. Combine the M2P2 with the VASIMR and you've got yourself a very flexible engine (the two are such a good fit because the VASIMR requires the production of plasma, as does the M2P2).


Back to top
Profile
Space Station Commander
Space Station Commander
User avatar
Joined: Sat May 22, 2004 8:59 am
Posts: 578
Location: Zurich
Post    Posted on: Mon Jun 21, 2004 12:08 pm
That plasma bubble thing is interesting. I tried to find some information about it on the web and of course it's out there, just google for "plasma sail". Everyone talking about it touts it as an alternative to the solar sail.

Given that one of the major inhibitions to pushing an X-prize vehicle to LEO is that re-entry gets harder and harder to deal with as the re-entry speeds increase.

I wonder if it is possible to use a big plasma bubble to help increase atmospheric drag surfaces of a re-entering X-vehicle?

Just trying to kill time between now and the launch.

_________________
Per aspera ad astra


Back to top
Profile
Moderator
Moderator
avatar
Joined: Mon Feb 02, 2004 2:44 pm
Posts: 227
Location: Alexander, North Carolina, Planet Earth, the Milky Way Galaxy
Post    Posted on: Mon Jun 21, 2004 12:38 pm
Dr_Keith_H wrote:
I wonder if it is possible to use a big plasma bubble to help increase atmospheric drag surfaces of a re-entering X-vehicle?


Hmmm... Great concept! Bears thinking about. 8)

--Ralph

_________________
--Ralph Roberts
CEO, Creativity, Inc.
author of THE HUNDRED ACRE SPACESHIP
http://1vid.com


Back to top
Profile WWW
Spaceflight Participant
Spaceflight Participant
User avatar
Joined: Mon Jun 21, 2004 1:42 pm
Posts: 59
Post    Posted on: Mon Jun 21, 2004 4:27 pm
Dr_Keith_H wrote:
Hmm that was slightly tough, given that you didn't say who "they" are :wink:

But perhaps you meant this ...

http://www.planetary.org/solarsail/update_20040326.html

Slightly off topic for an Xprize forum ... and yet ... strangely cool.


He could have meant this:-

http://cruiser.ru/eng/prod1.php

AKS-1, "first spacecraft with a solar sail", to be launched June 29 on a Dnepr launcher from Baikonur.


Back to top
Profile
Moderator
Moderator
avatar
Joined: Thu Jun 03, 2004 11:23 am
Posts: 3745
Location: Hamburg, Germany
Post    Posted on: Sat Oct 11, 2008 2:51 pm
An article under www.wissenschaft.de about the most recent Fly-By of Messenger by Mercury mentions that radiation pressure has been applied to get Messenger on the correct path.

The according article under www.space.com doesn't talk about it though.

The german article refers to Johns Hopkins University but doesn't quote any particular person regarding this.

But IF the information is correct it seems to suggest that the radiation pressure is that strong at Mercury that even solar sails based on existing material and conventional technologies may be of observable use there.

What about it?

Dipl.-Volkswirt (bdvb) Augustin (Political Economist)


Back to top
Profile
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 8 posts ] 
 

Who is online 

Users browsing this forum: No registered users and 20 guests


cron
© 2014 The International Space Fellowship, developed by Gabitasoft Interactive. All Rights Reserved.  Privacy Policy | Terms of Use