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#2 2007-10-07 06:58:53
- Terraformer
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- From: The Fortunate Isles
- Registered: 2007-08-27
- Posts: 3,909
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Re: New mars plan
Er... what do you mean by another Mars plan?
And what are your great ideas?
Use what is abundant and build to last
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#4 2007-10-07 11:43:52
- SpaceNut
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- From: New Hampshire
- Registered: 2004-07-22
- Posts: 29,438
Re: New mars plan
jumpboy11j a CO2 fueled rocket? sure would love to hear more. As for the new Nasa rehashed reference mission plan MarsDrive has been working on review of the old plans and looking at the difficulty going forward for a base on Mars effort. Simular efforts are also being worked on under a number of topics as well on Red Colony as well.
Long and short is solving the mars entry mass to surface landing into something larger than what we have done today. Estimates range from about 500 mt to 1200mt depending on launch vehicle and orbital assembly to produce a long term duration capable design.
As recent work done at the analog sites by Mars Society has put to the test of what does a crew need for real survival numbers it found that a crew can live on less than the numbers that are published in the reference documents but what are the results of supplying less with no garantee that it will have the same effect on others for there health needs to be answered.
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#5 2007-10-08 11:26:23
Re: New mars plan
Well, it's not really CO2 fueled, more like Nuclear Thermal except I'm working on another way to generate heat (any ideas, preferably non-chemical).
What are the main variables involved for mass?
I do have a new idea for a heat shields, posted below.
http://groups.msn.com/HSLD/shoebox.msnw … &PhotoID=1
it's at the link. There's nothing else at te website, I put it there so you can see the picture. How would I post it at newmars?
-Josh
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#6 2007-10-08 19:17:08
- SpaceNut
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- From: New Hampshire
- Registered: 2004-07-22
- Posts: 29,438
Re: New mars plan
Not hard to do but the address has the picture properties as an indirect and it is this http://groups.msn.com/_Secure/0OwDJDv8P … Y/HSLD.JPG
so place the string in between the [img]CCC[/img] brackets and you get
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#7 2007-10-11 16:02:21
Re: New mars plan
Ok, I've got a full replacement for chemical rockets:
You solidify CO2 and put it in the fuel container. Then you get sodium 22. It's half life is about 2 years 7 months. After prodiction off sodium 22, you bind it with oxygen to produce Na2O. You put this in the bottem of the ship. It decays, as far as I can tell, mostly by positron emission. If you run an electric current through the place where it is, there should be significant heat yeilds, due to somewhat high speed interactions between electrons and positrons. It would produce a lot of energy for about one year, and after that, slowly slow down. I believe that it wouldn't suffice for missions longer than 5 years, and there would be extreme difficulties with that.
Questions remaining to be seen:
How much Na2O would you need?
How much money would it cost to make that much Na-22?
How long would it take to go to mars?
Would it make sufficient heat?
-Josh
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#8 2007-10-13 10:48:37
Re: New mars plan
A benefit is that you wouldn't need any power generation systems, as I'm sure something simple could be attached for that. Also, you would need less sheilding, as it emits much lower energy gamma rays then a proton, antiproton annihilation
-Josh
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