I didn't come up with remediation of the Van Allen Belt, Tethers Unlimited did. It doesn't make things more complex, it simplifies them.
>
> Especially when transiting the Van Allen belts has a simpler solution, we've
> already done it 18 times, do it QUICKLY.
At what cost? We cannot use solar powered ion engines, which we already have, to transition the Van Allen belts quickly. We can only use chemical rockets to do that. This reduces our useful plus inert load for every 100 tons from 86 tons to 23 tons.
What does it cost to remediate the Van Allen belts for a long period of time? Less than 100 tons on orbit.
So, the next question is, how many tons are you sending to Mars?
If you're sending 1 ton every synodic period, and its unpiloted, you just harden your hardware and you're good to go.
If you're sending 100 tons and more every synodic period, and its piloted, you've got to put up 340 tons to get that 100 tons to target. In this case, it makes sense to invest 100 tons on Van Allen remediation, and send 206 tons to Mars - with the SAME 340 tons to orbit in both cases. You're cost is the same, you're payload to Mars is more than doubled.
> If you think folks are just going to drain the Van Allen belts w/o years of
> litigation and the like you're sadly mistaken.
You just do it under existing rules and ask for forgiveness after if necessary. In the mean time you've cut your cost to Mars in half.
> >
> >> And because you can't have a crew on-board
> >
> >Yes you can. Not only can you eliminate the van Allen belt radiation
> >hazard, you can also give your crew radio-protectants that let them survive
> >even lethal radiation doses.
> >
> >
http://io9.com/5966704/ex-rad-the-drug-that-takes-all-of-your-radiation-worries-away
> >
>
> Did you even read the article? It INCREASES chances of survival, it doesn't
> assure it. It's designed for acute exposure, not prolonged.
Prolonged exposure is 1/5th the level that would cause health effects during the mission, and the radioprotectants are used precisely before or after acute exposure.
Without the Van Allen belt we are left with cosmic and solar radiation.
NASA reports that Curiosity was exposed to 1.8 milliSieverts per day in interplanetary space. That's 657.45 milliSieverts per year. In transit. A five year mission is 3,287.25 milliSieverts at this level.
http://www.nasa.gov/home/hqnews/2013/may/HQ_13-165_MSL_Radiation_Findings.html
Now, consider that 64,000 milliSieverts is the NON-FATAL dose to Albert Stevens over a 21 year period. This is an average rate of 3,0000 milliSieverts per year. Five times higher than that required for a Mars mission.
4,500 milliSieverts per event is the lower fatality limit according to the data generated by the Goiânia accident.
The radioprotectants outlined would be effective reducing mortality to radiation levels up to 30,000 Millisieverts per event - either taken before an expected event or after.
> And... IT ACTUALLY HASN'T BEEN TESTED in humans with actual radiation.
There are dozens of radioprotectants used every day for people receiving radiation treatment for cancer. These include, in addition to limited use of Ex-Rad, CBLB502 a compound being with an ability to suppresses apoptotic cell death in hematopoietic and gastrointestinal cells, amifostine 'WR2721' the first selective-target and broad-spectrum radioprotector, upregulates DNA repair, Filgrastim ('Neupogen') a hematopoietic countermeasure of acute radiation syndrome (ARS) for cancer patients, Pegfilgrastim ('Neulasta') longer acting than its parent derivative Filgrastim, Sargramostim ('leukine') similar in use to filgrastim, CLT-008 a drug with an ability to excel blood neutrophil recovery, N-acetyl cysteine protects against DNA damage, suggested to be comparable to amifostine, 5-Androstenediol a compound that acts as a gastrointestinal countermeasure to ARS, Rx100 an analog of lysophosphatidic acid used as a gastrointestinal countermeasure to ARS, BIO 300 a low cost Genistein derivative with an ability to temporarily lock cells in their most radioresistant mitosis phase, AEOL-10150 a manganoporphyrin catalytic antioxidant.
The Armed Forces Radiobiology Research Institute has studied these drugs and others in combination for years, to give US soldiers a leg-up in a nuclear conflict. They have classified much of this research. The list above is a short one as a consequence.
No doubt the Russians and Chinese have similar databases.
The point is, we have the technology in place today, to survive the sort of trip we're contemplating here. All we need is a willingness to make use of it.
> I'll
> give you a little hint, many drugs that work great in the lab don't work the
> same in humans. Human physiology is funny that way.
I'll give you a bigger hint, humans are routinely exposed to radiation that causes acute radiation syndrome ARS, when being treated for cancer. These humans are routinely given treatments that allow them to survive these massive radiation exposures.
There is a list of off the shelf radioprotectants approved for use in the medical community. There is a larger, and more pervasive list, approved for use in the military community, but kept secret.
> >> and ISS is DESIGNED to
> >> be crewed at all times, you're also screwed.
> >
> >Being crewed is just fine. Without the van Allen belt, and with
> >radio-protectants, we're good to go!
> >
> >> Yes, you might TRY to fly it
> >> for months w/o a crew, but you're screwed if anything goes wrong.
> >
> >I think a better approach is to remediate the van Allen belt over the
> >period of time you're rebuilding the ISS for interplanetary cruising.
>
> Again, see above. Not going to happen.
You got all the details wrong. Without the radiation belt exposure is only 20% of troubling levels and with radioprotectants astronauts can survive solar storms.
> >
> >> >
> >> >The governments that paid for the ISS in the first place are talking of
> >> >breaking up, and this thread wondered about when the ISS would follow
> >> >Skylab and Mir and crash into Earth, rather than pay for its continued
> >> >operation.
> >> >
> >> >Now, typically, people who have made a lot of money, are attracted to
> >> >these
> >> >sorts of opportunities.
> >>
> >> Which opportunity?
> >
> >To explore Diemos & Phobos, and lay claim on them, and from that slender
> >advantage, control the development of Mars going foward, just as the ITU
> >today controls Geosynchronous orbit.
> >
> >> To die of radiation poisoning while flying through the
> >> belts?
> >
> >Nonsense. HiVolt shows us how to remediate the radiation belt. Onconova
> >shows us how to survive lethal radiation doses.
>
> You really believe this nonsense don't you?
Only because I know the facts. You on the other hand, not so much.
> >
> >> Acquiring an asset that has its electronics fried?
> >
> >Nope. Critical electronics will be shielded before departure, while the
> >major radiation hazard will have been remediated.
>
> So now you've added a LOT more mass and effort into your system. Again,
> you've taken a problem and made it far more complex.
Nonsense. A single Falcon Heavy orbits sufficient payload to remediate the van Allen radiation belt.
http://www.tethers.com/hivolt.html
> You're FAR better off launching some Bigelow capsules and using those.
If the Bigelow capsules had a 17 year record of proven performance and the same volume and capacities on board - I would agree - we might want to risk a crew for five years in interplanetary space with them. Since this is NOT the case, I would say Begelow approach might be ready for prime time in five years with effort.
> You don't retrofit something designed for LEO and make it survive deep
> space.
Other than radiation, what other factors do you imagine make ISS modules unsuitable for travel through interplanetary space?
> You design for deep-space from day one.
Other than radiation, name five SUBSTANTIVE ENGINEERING differences between LEO and the flight through the inner solar system?
> Any freshman engineer could
> tell you that.
Any graduate engineer would know the freshman doesn't know his ass from a hole in the ground when he said that.
My comments are based on a careful review of facts. Yours are based on your gut feelings.
Fact is, the UN will recognize claims made by crews landed on Diemos and Phobos, with plans for further missions to follow, based on actual court records involving the ITU and attempts to claim ownership of Geosynch slots they manage.
> and
> b) even if they do, so what.
Then you can sell deeds to pioneers who come to Mars in your spaceships.
> You're not going to effectively make money from
> it.
YOU may not know how to make money from this, but I assure you, those who invest in this programme WILL! lol. You imagine that just because you can't think of a thing, it can't be done!
Look, Musk is cutting his own throat lowering the cost of space access, unless and until he can increase demand. There are temporary fixes for this problem, building a large wireless hotspot for the globe can only go so far. Ditto for power satellites. Tourism to orbit, and the moon, with return of the travelers, are viewed as risky, expensive and wasteful excesses of a class of people too wealthy for an over-populated world of limits.
The only opportunity Musk has to permanently increase demand for space access, in a way that is acceptable to the Agenda 21 crowd at the UN, is to point out that;
(1) over their life, multi-millionaires and billionaires, pollute the earth far more than the majority of folks,
(2) constraining the willful, capable, intelligent, and spirited, persons who generally become incredibly wealthy, creates unwanted push back for global political agendas,
(3) for this reason PERMANENTLY REMOVING such spirited and willful individuals from the earth, in a way that they SELF SELECT for such removal, and pay large fees for doing so, is a definite benefit to global managers.
These are the sorts of white papers and talking points that are being circulated today among the UN and other high level study groups.
Now, what motivates someone to spend $2 million to $5 million to leave Earth permanently?
(1) Deed of ownership of something,
(2) High probability of survival,
(3) A competitive, open, and free environment to compete,
(4) Political liberties not available on Earth,
(5) Political and economic stability not available on Earth,
this is just the short list.
There are 37.6 million families with wealth over $1 million world wide. These are High Net Worth Individuals (HNWI) There are 1,645 families with $1 billion or more world wide. These are billionaires.
Of interest to Musk are the 86,800 families with $50 million or more world wide. These are Ultra High Net Worth Individuals (UHNWI). A family of four, paying $2.5 million for passage, for each, is $10 million. Another $10 million for a deed to a substantial amount of property, with alloidal title, which is no longer available on Earth, with the rights to operate self-replicating machinery, nuclear facilities, etc., which is not permitted on Earth. This leaves the poorest of these families with $30 million or more of their original $50 million - which they can put in the Mars Branch of the Interplanetary Bank, not exposed to any of the systemic risks of Earth based banks.
https://publications.credit-suisse.com/tasks/render/file/?fileID=5521F296-D460-2B88-081889DB12817E02
www.imf.org/external/pubs/ft/wp/2013/wp1354.pdf
The primary motivator for early adopters is preservation of wealth in an increasingly uncertain economic environment.
So, Musk, and other owners of Mars, would also own the Mars central bank, to which folks could transfer their wealth.
Now with a market penetration of 4.5% against these 86,800 families, and with 4 persons per family making their way to Mars, we have the potential to generate 15,624 people per year.
Now another advantage of ion propulsion appears. With ion propulsion, departures can occur almost any time. With chemical boosters, they cannot.
With 85 persons per 100 ton payload (assuming suspended animation) we have a launch every other day. We also have $106.25 million per day for passage, $106.25 million per day for property rights, and at least another $318.75 million per day transferred from Earth banks to Mars bank. With a 20 to 1 leverage, Mars bank's loan capacity increases by $6.3 billion per day! This can be used to develop Mars and solar system resources and create wealth on an unprecedented scale.
With a 1.14% growth rate in population on Mars, and the arrival of 15,624 people per year. In 50 years at this rate, Mars' population exceeds 1 million persons, and more people are born on Mars each year than arrive in this way.
> >
> >> > Governments have the capacity to make hugely irrational decisions with
> >> > their assets. A clever person can usually exploit such propensities to
> >> > gain hugely as a consequence.
> >> >
> >> >So, the idea of spending a few billion dollars to get a $150 billion
> >> >asset,
> >> >and leverage that into a few trillion dollars worth of claims on an
> >> >entire
> >> >planet, is something that those with $10 billion and more would spend
> >> >some
> >> >time considering.
> >>
> >> I'm sure they have,
> >
> >I am too.
> >
> >> and they're not lining up to do what you suggest.
> >
> >Yes they are;
> >
> >
http://www.forbes.com/profile/elon-musk/
>
> If they're lining up to do what you propose, why do you post a
> COUNTER-EXAMPLE.
>
> Musk is NOT lining up to take ISS and fly it to Mars.
You have no idea what Musk is doing. You presume to know for no good reason.
> He's far to smart for
> that.
He's smart no doubt, and capable. Yet enlisting Musk in this way is dishonest, since you have no idea what Musk is doing.
> He's building his system from SCRATCH.
That's demonstrably not true. He purchased TRW's pintle fed engine technology from them and built around this technology a low cost highly reusable vehicle, very much along the lines as I described to NASA in 1996.
> He's optimizing for low cost
> launches from day one.
That's correct. Now, what's more likely? That he take proven technology already in place? Or spread his resources and increase risks further by developing unproven technologies for mission critical applications?
I think, as in the TRW acquisition, that he will sell Tesla and use the $75 billion to fund further acquisitions in aerospace going forward, as I suggested 10 years ago.
> >
> >> Perhaps they know a lot more than you think.
> >
> >I am certain they know quite a bit more than you. That's a certainty!
>
> I'm certain Musk knows more than I do.
Yes, and I am equally certain that your presumption that you know what he thinks about the ISS and its utility in taking possession of Mars soonest, is based on nothing more than your gut feeling - nothing more than a lame attempt to use a respected party to give credence to your clueless ranting.
> >
> >> Even Musk, who has money to burn isn't coming close to your plan and he
> >> DOES
> >> intend to go to Mars.
> >
> >Musk is putting Tesla up for sale. Why? What's he going to use the $75
> >billion for?
>
> I can guarantee he's NOT going to buy ISS or do anything close to your plan.
> He's not stupid.
He purchased TRW's space faring assets, an asset I outlined as critical back in 1996. He will likely use $75 billion to buy other disused assets. There is no reason in the world he would exclude the ISS and NEXT ion propulsion system from his analysis. Any competent engineer would come to the same conclusions I have.
> He's been quite clear about how what he wants to do and how he's going to
> get there.
Its also quite clear that you have absolutely no knowledge that hasn't appeared in a PR hand out. If you actually had some real relevant idea of the disposition of space faring assets on this planet, you would actually see that the $75 billion war chest will buy up disused under-valued space faring assets and put them toward going to Mars.
Making a claim on Mars, establishing a bank on Mars, independent of the Credit Default Swaps and other systemic risks of Earth, would easily garner 4.5% of the UHNWI families in the world, and support a 7 flights every two weeks of his 100 ton payload carrying 85 passengers.
> >
> >Oh, to expand SpaceX into a major player, along the lines I've outlined
> >here decades ago. Buying up the disused space faring assets of the major
> >aerospace companies around the world.
>
> Buying up disused assets is NOT what he's going to do.
Its how he got his pintle fed engines from TRW. It will be how he will expand.
> If it were he
> wouldn't be building his own engines.
You don't know much about the design of his engines do you?
> >
> >This will include the ISS, HiVolt, and all the rest.
> >
> >Musk may be ON Mars before the 50th anniversary of Apollo.
>
> This is the closet thing to reality you've said.
To achieve that reality requires real things be done with real equipment already in place. To understand what choices Musk has you have to understand what assets are out there, what they're good for, and how they might be applied toward your goal.
> Though I highly suspect it
> won't happen in 4 years. If you said 55th or 60th, I think you'd be much
> closer to the mark.
Flying a mission the remediate the van Allen belt would get lots of attention. Working with the Russians to sell off their section of ISS and retrofit it for deep space travel along the lines I've described, would get him ready in a matter of months. He could be on Mars in 4 years if he did that.
If he chose to use Bigelow modules or some other approach, his costs increase, his time table lengthens, and his risks go up.
>
> > If so, he will be using a solar ion propelled upgraded ISS module to do
> > it.
> >
>
> And this is about the farthest thing from reality you've said here and
> that's saying a lot.
There is absolutely no basis in reality for your statement. A proven ISS module appropriately equipped, is perfectly usable as an interplanetary mission module.
> >
http://www.techtimes.com/articles/33585/20150218/analyst-predicts-apple-will-buy-tesla-for-75-billion-what-are-the-chances.htm
> >
> >
> >> >
> >> >In this thread, in response to those who said the ISS will join Mir and
> >> >Skylab at the bottom of the ocean, I pointed out that 160 NEXT solar
> >> >powered ion engines attached to the station, each with 900 kg of Xenon
> >> >gas
> >> >propellant, could propel the station and personnel and supplies through
> >> >a
> >> >delta vee of 16 km/sec. This is sufficient to travel from Low Earth
> >> >orbit
> >> >to an orbit around any object in the inner solar system, and back to
> >> >Earth
> >> >orbit again.
> >> >
> >> >A crew of six to eight, fed with freeze dried foods, not fresh foods as
> >> >at
> >> >present, supplied with 3D printed clothes, parts, and even drugs,
> >> >equipped
> >> >with radio protectant drugs, could fly a slightly modified ISS around
> >> >the
> >> >inner solar system, and back to Earth.
> >>
> >> Freeze dried foods doesn't really solve much because you need the bulk
> >> component to make them useful. WATER.
> >
> >Which can be recycled.
>
> No shit sherlock.
Yep.
> That's the point. You're NOT saving mass in your plan.
We're not communicating because you're too stupid to see what I'm saving. Any reasonable person could not say what you just said. Therefore you are being unreasonably stupid.
Look... in terms of grams per day we have for an adult human male of average build;
In 400 Potable Water
In 2564 Food & Beverages
In 686 Oxygen
Total 3650
Out 857 Water vapor
Out 857 CO2
Out 1936 Human Waste
Total 3650
Of this total 2,707.6 grams of the 3,650 grams each day is water. Water consumed directly and water consumed indirectly in Food and Beverages.
In a closed system water extracted from the atmosphere, and water extracted from human waste, totals 2,707.6 grams needed on the input side.
The Russian section handles only 10% of this total. Its an experiment nothing more. A true closed cycle system would recover 100% of this total and reduce the amount tremendously.
Furthermore, the ISS wastes a lot of mass in cleaning supplies, toilet paper and the like. Figuring out how to recycle these materials for full reuse is well within our capacity to achieve.
http://www.gizmag.com/mcor-iris-paper-3d-printer/32903/
256.4 grams per person per day is all that is required in an efficient system. Everything else is recycled. Thus, over 5 years 468.2 kg of freeze dried food packets are needed.
With the current regime of fresh food, even with partial recycling of the 400 grams of potable water per day, you need over 3 kg per day - and with disposables like kleenex and toilet paper, napkins and washcloths, you expend more than 5 kg per day. This is over 9.1 tonnes over five years per person. A crew of 8 would need nearly 73 tonnes! Vs less than 4 tonnes with complete recycling.
Now, what about the 0.686 kg per day per person of oxygen? Well, this translates into 0.857 kg per day of carbon-dioxide. This is easily absorbed in a Sabatier reactor to form methane and water.
CO2 + 4 H2 --> CH4 + 2 H2O
This already occurs in the ISS. The next step is not. This involves taking microwaves to break the CH4 down into hydrogen and elemental carbon
CH4 + uwaves --> C + 2 H2
The water is broken down into hydrogen and oxygen again. The oxygen is available for rebreathing, while the hydrogen recovered from the carbon is added to the hydrogen recovered from the water in this process.
It takes 300 watts per person to power this process and provide complete recycling of the air.
> >
> >> So you're still carrying the same mass
> >> along.
> >
> >Not if you're recycling it.
>
> Umm, of course you're carrying it. They don't send it out for dry-cleaning.
You're being especially stupid. Look at the manifest of the ISS. Each astronaut consumes 5 kg or more per day. Look at what they're consuming. Being able to take used toilet paper and produce new toilet paper, used kleenex and produce new kleenex, used wash rags and produce new wash rags, CO2 to produce O2 and elemental carbon - take ALL water and recycle it 100% - and you reduce this from 5 kg per day - or 9.1 tonnes per person over 5 years - to 0.256 kg per day or less than 0.486 tonnes per person over 5 years.
In short, by adding a few 100 kg of appropriate technology per person, you've radically reduced the consumption.
> You have to carry the water along and recycle it.
Yes, you have to carry along a certain supply. That supply isn't large.
> So you're carrying the
> mass.
You're carrying some mass, but you have to understand why you're carrying it and what must be done to reduce it. Saying that ISS is recycling urine to produce SOME potable water - is not the same as saying ISS has a fully 100% closed cycle system to retrieve all water and reuse it - to retrieve all CO2 and reuse the O2 broken from it, etc.
Do 100% recycling and you reduce 73 tonnes for a 5 year interplanetary mission for 6 people to less than 4 tonnes for the same mission and crew.
Look at the date on the article and look at more recent articles. I just googled a popular easily accessible article. If you have access to scientific literature look up what the the Fels Institute for Molecular Biology and Cancer Research in Philadelphia says. Researchers there concluded in 2014 that Results show before and after exposure to ionizing radiation provides dose dependent protection against radiation-induced damage. Treatment was found to result in a more rapid recovery of the hematopoeietic system. These results suggest that the drug is a safe and effective radioprotectant and could be a novel agent for use in radiobiological disasters.
Like I said, the US military has been stocking this stuff for who knows how long. Its release into the public market suggests we already have all we need to go to Mars.
I didn't mean to suggest that the article I cited was definitive. I didn't want to cite Japanese language articles here. I didn't want to cite scientific papers that have large pay walls around them.
However, you have taken some details from the articles I did cite and read them wrongly.
Ex-Rad isn't the ONLY radioprotectant out there. It is suggestive of what is possible TODAY. Right now. Every day people with cancer are treated with massive doses of radiation. Every day they take radioprotectants. Doctors are besiesging the FDA for approvals to try anything to improve survival rate an quality of life of these patients.
So, things are not the way you would have us believe. We're good to go on the radiation front.
> And the human tests
> did NOT use radiation.
There are large numbers of radioprotectants used every day by cancer patients receiving massive doses of radiation. Fukushima workers received Ex-rad according to news articles in Japan. It was reported that they came from US military research, that was formerly classified.
> These studies are FAR from complete.
The study I cited was easily available. Look deeper and with greater understanding and you will see we have everything we need for competent people to put together the treatments we need to survive the radiation hazards today.
> >
> >
> >> Much like your engineering.
> >
> ><yawn> If you knew anything about what you were talking about, you would
> >realize that you harm your own credibility with statements like these.
> >
>
> I have no worries about my credibility.
Me either. I'm not the one making huge gaffs and stupid mistakes like you are.
> >> There are HUGE differences.
> >
> >Between reality and your thoughts about reality - yeah.
> >
> >>
> >> >
> >> >The Russians and Europeans as well as the Japanese have explored the
> >> >potential of reducing costs by these changes anyway. The Americans have
> >> >held radioprotectants secret until the Fukashima disaster. That
> >> >information has been released publicly, and those drugs are now
> >> >undergoing
> >> >FDA review for general use. Private companies have developed techniques
> >> >to
> >> >mitigate the radiation in the inner van Allen belt, reducing radiation
> >> >levels to 1% current levels in a few months.
> >>
> >> Which adds to your COSTS.
> >
> >Not by much.
I should add, it adds a single Falcon Heavy launch, and even counting that it more than doubles your payloads on Mars by permitting the use of efficient solar ion engines.
> >
> >> >
> >> >>
> >> >> >
> >> >> >Once you had a properly structured deal, you could then list it on an
> >> >> >appropriate exchange, by subdividing and selling off the rights to
> >> >> >the
> >> >> >planet in question.
> >> >> >
> >> >>
> >> >> Which rights you don't own.
> >> >
> >> >Nonsense. Sending a crew to Mars gives you rights to Mars. Those who
> >> >fund
> >> >the effort can agree how to divide those rights once they are realized.
> >>
> >> And do WHAT with them?
> >
> >You sound like the detractors of the early investors in North America who
> >said of their expeditions that they were 'errands into the wilderness'.
> >These sentiments did not stop expeditions from being formed.
> >
> >> This is like going to the Sahara and claiming you're
> >> a millionaire because you have all this sand available.
> >
> >No its not.
> >
> >
http://edition.cnn.com/2015/03/25/world/opportunity-rover-marathon-milestone/index.html
> >
> >Its like going to the Sahara with a solar powered 3D printer and announcing
> >you have glassware for sale!
>
> And who will you be selling it to?
Anyone who wanted it.
> Note, folks went to North America because there were products they could
> bring back to Europe to sell. These included furs and old-growth lumber.
>
> What does Mars have that Earth does?
Mars has things Earth does not - economic stability, political stability, freedom, peace and prosperity.
It certainly will. No one will make the investments necessary without understanding how their effort will be valued going forward.
> Let's be clear. Humans are going to Mars. Right now, I'd place Musk as the
> odds on favorite. That could change in a week, a year, whatever.
>
> But they sure as HELL will not do so using ISS or anything else currently in
> orbit.
Nonsense. At present it costs $8,000+ per kg to put anything on orbit that's useful. The ISS represents a $150 billion investment. Any usable product aboard the ISS today that can be used to go to Mars, if it were available for less than $8,000 per kg, would be a bargain.
> It will be designed and engineered from the ground up for the
> mission.
The ISS modules were designed and engineered ground up for long duration human habitation. This was cited in the original justification for the project as a reason for doing ISS. Nothing has changed that makes ISS modules less suitable for travel through the inner solar system. Nothing.
Yes.
Yes.
> Musk is making the point of my objections.
Nonsense.
> He's NOT buying ISS. Or
> Russian engines or anything like that.
You don't know that.
> He's designing and building his own
> from scratch.
No, he purchased the pintle fed engine technology from TRW. That's how SpaceX got started. He improved a proven design around a proven tool set that he obtained at bargain basement price from a contractor who didn't see the value in what they had. Musk did, and acquired the assets and made monumental improvements in them.
>
> >
> >3D printing is a huge advantage for any interplanetary pioneer. Extensive
> >recycling is as well. Radiation is an issue for any mission too. Solar
> >powered ion propulsion is a real benefit as well.
>
> Yes. I'm not objecting to those claims. I'm objecting to your
> extrapolations FROM those claims.
The ISS all 400+ tonnes of it can be sent through a delta vee of 16 km/sec with the addition of NEXT solar powered ion engines - and this gives it the capacity to travel to Diemos and Phobos and back. This gives anyone carrying out this mission, the right to claim Diemos and Phobos and control the development of Mars along the lines the ITU uses to maintain control of Geosynch orbit with the UN.
>
> >
> >A single Falcon Heavy launch could deploy HiVOlt and remediate the van
> >Allen belt. This is a benefit to all missions going forward.
> >
> >Preparing the ISS for a Mars mission and outfitting it with solar powered
> >ion engines as I've described would explore a way to expand the performance
> >envelope very quickly using sunk costs to good advantage.
>
> Or, since you're already committed to flying Falcon Heavy, use that to
> launch a dedicated craft. It's going to be far more cost effective.
>
> >
> >For example, a 100 ton payload to LEO that must undergo a delta vee of 6
> >km/sec using hydrogen oxygen propellant with a 4.5 km/sec exhaust speed can
> >send only 23.6 tons to Mars. The same 100 ton payload to LEO using a 40
> >km/sec ion engine can send 86.0 tons to mars! So, even if 6 tons is a
> >solar powered ion engine bank you can send 3.4x as much stuff per trip with
> >the solar ion approach!
> >
>
> Great. Now, instead of flying ISS and bringing along a hell of a lot of
> stuff you don't need (many of the modules won't help you) simply BUILD a
> dedicated craft from scratch.
Its a classic make/buy decision. You haven't done it. I have. I agree, you don't need ALL the modules, just some of them. It saves you money if you can get the ISS modules at a cut rate price.
The cost of hardware is low in this estimate.
> Not going to cost nearly that much.
I took the quoted price from SpaceX's own site, and the lowest price I could find from qualifed aerospace vendors in India. Where do you get the idea you could get a lower price? In any case, its going to cost more than $0 you projected.
> Because again, I'm not
> going to rebuild ISS.
Wait a minute, if I can take 300 tonnes of hardware off the station, and add another 100 tonnes of hardware, and propellant, and get the equivalent of launching 400 tonnes form Earth, I've just cut my costs by 75%.
> Most of that payload is going to be FUEL. LOX and
> LH2 or kerosene are damn cheap.
Not when you launch it into orbit at 2,200 per kg, and put it in tank costing $10,000 per kg.
>
>
> >
> > TOTAL $12.1 billion
> >
> > 6 launches - $0.51 billion
> > 31,800 kg payload - $0.70 billion
>
> And you plan on landing on Mars with your Red Dragon in those numbers?
No, this is just to land on Diemos and Phobos and make claims on Mars.
> Hope
> your crew doesn't mind litho-braking.
<shrug> You like to read things in a way that I didn't write them. So be it.
> >
> > SUB-TOTAL $1.21 billion
> >
> > COST-ISS $4.89 billion
>
> Not going to happen.
You don't know that.
> >
> > TOTAL $5.10 billion
> >>
> >> Hell, since I don't need nearly 1/2 the mass of ISS, I'll take 1/2 the
> >> flights,
> >
> >The ISS can be cannibalized. The various modules can be reused. The point
> >is, you're saving $7,000 to $10,000 per kg of reused hardware. If you're
> >buying it for $0.01 on the $1.00 - its worth considering.
>
> Now you're talking cannibalizing it on orbit. Another huge expense.
What's expensive about a crew of 8 astronauts installing a few tons of hardware?
> You
> seem to easily wave hands at complex issues.
You seem to confuse complexity with expense.
Nonsense.
> Since suspended animation in humans has NEVER been shown to work to
> the level you're suggestion.
That's not true Mark Roth has case histories of people who have been frozen and reanimated after days and months in suspended animation.
> Mr. Mook, yes, as I said above, we'll be on Mars one of these days. We'll
> most likely use SOME of the items suggested above (we're already doing 3D
> printing on ISS and will do more of that in the future). The problem isn't
> necessarily that your ideas are unworkable (though they often includes
> elements that are) but that there are FAR simpler solutions. Musk is
> already proving that.
You're conception of what Mr. Musk has done is flawed. He has achieved much, but he has done it by being a careful and prudent business person looking at what actually works and building on that.