My understanding is that Edwards' company, Carbon Designs Inc., is concentrating on carbon nanotube R&D; last year they announced a cooperative R&D agreement...
Sorry nobody has responded yet. I'm not exactly a physicist, but I do know that due to the difference in gravity, the strength of the material requirements...
Thanks Todd. Because of the reduced requirements I was wondering if a MARS based SE fabricated from Kevlar would be feasible. Bert ... do know ... much ... ...
... Look like yes to Kevlar, when extended from Phobos. See below. Dr Strangelove -- 3.2.4 Mars Space Elevator Concepts At Mars, proposals have been studied...
To repair and maintain it, automated ribbon manufacturing infrastructures on the Martian surface are required. ... Yahoo! Messenger with Voice. Make...
The mass of the Edwards SE is not at GEO, but is it possible to design a pseudo-SE that does have its mass at GEO? The tensile strength requirement for such a...
The basic physics of the concept is a bit confusing to me. Standerd SE would derive it's additional torque from the earth - your idea does not. Hence the...
Sounds like your suggesting something like the 'hypersonic' tether design: _http://www.affordablespaceflight.com/_ (http://www.affordablespaceflight.com/) ...
RanulfC@...
Apr 12, 2006 12:47 am
7073
... and 'elevator' ... tether requires a ... as you ... engines, (or ... systems are most ... replace all the ... to have a ... Can't you just deploy a...
Hi Guys, Mars gravity is around 38% of ours so the chances are an elevator could be built of kevlar. You probably wouldn't need nanotubes. However there is a ...
But I have a question, if there was a space elevator to be built.....where would the ending destination be? Just a plateform of some kind or would it go into...
I was wondering about a mars space elevator with the fact tha olmpus mons is so tall would it be more effecient to build it on one of the slopes of olympus...
In a message dated 4/16/2006 12:28:06 PM Central Daylight Time, zonkerdead@... writes: I was wondering about a mars space elevator with the fact tha...
GEddieA95@...
Apr 16, 2006 5:55 pm
7078
... While 'possible' the need to constantly adjust the sail in flight and the 'horizon' limits of the lasers, (unless you have multiple arrays around the ...
RanulfC@...
Apr 17, 2006 4:22 am
7079
From what I've seen, a mars SE was desiged to be sloped, i.e., based on a non-equatorial point on the ground - causing the ribbon to slope from the base...
... <SNIP> While 'possible' the need to constantly adjust the sail in flight and the ... around the ... around to ... adjusting every ... you ... months you...
... built.....where would the ending destination be? Just a plateform of some kind or would it go into something? <SNIP> Probably there will at least be an...
As I understand it, tether propulsion is pretty much joined at the hip with propellantless propulsion, because otherwise you'd use similar amounts of...
... Using an ion drive to make up the momentum is a perfectly respectable idea. It's just a question of using a high ISP drive to minimise the propellant...
... Couldn't you use the same ion drive in a booster, with similar propellant requirement and no tether? Sure, the booster has to be brought back to be reused,...
... No. Ion drives have very low thrust and are thus unsuitable for use on launchers (by the time you could have gained enough speed to stay in orbit, you'd...
... Depends on the 'tether' mostly. Most momentum exchange tethers (such as MXER) are looking at 'propellentless' simply because the incoming/outgoing payload...
RanulfC@...
Apr 18, 2006 11:45 pm
7087
... Short answer? As Ian said: No, thrust is too low and takes too long to increase the velocity to be used as a 'booster,' HOWEVER..... It CAN be used to...
RanulfC@...
Apr 19, 2006 12:18 am
7088
... Okay, tack on the ion drive in addition to a giant solar sail. I'm sure you could get enough ISP to boost a microsatellite with a tiny climber. I don't...
... respectable ... Someone has plans for an ion drive on a booster to help guide a disposed booster back to earth for recovery and eventual reuse. Or was ...
... AFAIK solar sails don't really work in LEO. The solar sail creates too much drag due to the remnants of the atmosphere that exist at that altitude. -- -Ian...
... No, my concept isn't a rotovator. The sails would operate well above GEO. The center of density for this pseudo-SE would be at GEO and it is adrift. The...
... Thank you for a moment of clarity in a thread that otherwise confuses momentum-transfer tethers in general, electrodynamic tethers, and rotovators. To...
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