Difference between revisions of "Luna-Mars Trade"

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(New page: {{Mirrored from lunarp}} Mars could return dividends at the same time that Luna does if they join forces. Luna has considerable potential for manufacturing and shipping stuff into orbit...)
 
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[[Mars]] could return dividends at the same time that Luna does if they join forces.
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==Lunar Needs==
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Luna has considerable potential for manufacturing and shipping goods into [[orbit]] about [[Earth]] where it can be of financial benefit, but Luna is short of [[Hydrogen]], [[Nitrogen]], and [[Carbon]].  These elements are not only necessary for life, they are useful for many industrial processes.  Mars has all of these elements in reasonably recoverable concentrations, and could export them to Luna and Earth orbiting factories.
  
Mars could return dividends at the same time that Luna does if they join forces.  Luna has considerable potential for manufacturing and shipping stuff into orbit about Earth where it can be of financial benefit, but Luna is short of Hydrogen, Nitrogen, and Carbon. These elements are not only necessary for life, they are useful for many industrial processes. Mars has all of these elements in reasonably recoverable concentrations, and could export them to Luna and Earth orbiting factories. The cost of lifting them from Mars could become considerably less than the cost of lifting them from Earth. Low Mars orbit, at an altitude of 100 miles has a velocity of 3440 meters per second, less than half of the velocity needed to orbit Earth at that altitude, more than twice the velocity needed to orbit Luna.  With reusable rockets built on Earth to use liquid methane and liquid oxygen, if the exhaust velocity is 3500 meters per second, there should be 36% of the take-off weight in orbit. With wings for a supersonic in ground effect landing in the 0.1 psi Martian atmosphere, the empty weight should be held to 30% leaving 6% of the take-off weight as cargo. If the technology for the supersonic in ground effect landing is not ready soon enough, there is always the possibility that Phobos is stuffed with volatiles. Phobos could be ground up and processed at one end and the tailings dumped at the other end.  It should be many years before the entire moon is converted into tailings, during that time Luna and Earth orbiting factories should be churning out a great many solar power satellites, orbital habitats, and orbiting space ports to help lift traffic from Earth.  If Phobos is 30% by weight volatiles and ships six thousand tons a year that is part ammonium cyanide and part propane, then after fifty years 100 billionths of Phobos will be processed.<ref> Phobos weighs 1*10^16 kg according to the Phobos article at Wikipedia.</ref>   
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===Mining Phobos===
*There seems reason to believe that supersonic in ground effect landing is a significant problem, and that it should yield to the proper effort, resulting in an economic Mars surface to Mars orbit shuttle. Donald Campbell was killed on the 4th of January, 1967 when the "Bluebird K7" racing boat flipped over and disintegrated at a speed greater than 300 mph. <ref> Bluebird K7 article at Wikipedia </ref> The problem seems to have been longitudinal instability when high ground effect lifting forces acted on a center of lift that shifted rapidly with changing attitude.   
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Phobos may be rich in volatiles<ref>Near-Infrared Spectrophotometry of Phobos and Deimos http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=2002Icar..156...64R&db_key=AST&data_type=HTML&format=&high=452a3fe65704274</ref>, which are needed by Luna.
*This sort of problem is made more difficult by the need to consider the reflection of shock waves in supersonic flight in ground effectSuch problems were handled successfully when the "Thrust SSC" broke the speed of sound on land during a 15th of October 1997 setting of the world's land speed record<ref> http://www.speedace.info/thrust_ssc </ref>
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Phobos could be ground up and processed at one end and the tailings dumped at the other end.  It should be many years before the entire moon is converted into tailings, during that time Luna and Earth orbiting factories should be churning out a great many solar power satellites, orbital habitats, and orbiting space ports to help lift traffic from Earth.  If Phobos is 30% by weight volatiles and ships six thousand tons a year that is part ammonium cyanide and part propane, then after fifty years 100 billionths of Phobos will be processed.<ref> Phobos weighs 1*10^16 kg according to the Phobos article at Wikipedia.</ref>   
*An ordinary wind tunnle by itself is insufficient for testing craft in supersonic ground effect conditionsA moving belt of catapillar like treads on the bottom of the wind tunnel moving as fast as the gas in the wind tunnel could simulate the runway rushing past during landing.  Having a belt of treads that are broad enough and move fast enough for the simulation would be expensive, but not as expensive as doing the testing on Mars. At least with only 0.1 psi of carbon dioxide needed for a simulation, it would not cost as much as otherwise to fill the wind tunnel with cold carbon dioxide.  
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==Martian Needs==
*references  
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===Manufactured Goods===
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Initial Martian settlements will have little industrial infrastructure, and will have to import many goods such as [[electronics]] and [[medicine]]. Lunar settlements are in a good position to supply some of these needs, as the energy cost of transport from Luna is much less than from Earth.
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===Financing===
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Like Lunar settlements, Martian settlements need funding to survive. Sales of Martian resources to Lunar and other interests could be a major source of cash. The ultimate source of the cash is customers on Earth that buy power from space based solar power plant manufactured with materials mined on Luna.   
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===Transportation===
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To get goods from Luna to Mars, those goods could be launched from Luna with mass drivers and transferred from Earth's orbital position to Mars with a VASIMR propulsion systemEach delivery could be packed with a fiber glass composite heat shield and a woven glass fiber parachute.  There would be no need to pack the parachute compactly for shipmentIt would be woven in space from lunar materialsSome of the [[Space access|MTLMOS]] flights would be dedicated to launching refueled methane/oxygen retro-rockets for the final landing decelerationShipments to Mars would rendezvous at a space station to mate with retro-rockets while the VASIMR transport system would take a shipment to Luna.
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==Mutual Needs==
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Settlements on Mars and Luna share many needs and opportunities.
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===Information===
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Information such as patented ideas, literature, scientific research, and computer programs can be created and traded between Luna and Mars at little to no transport expense using a [[radio link]].
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===Genetic Diversity===
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Small vessels with cryopreserved germ or eggs can be exchanged in order to enhance the genetic diversity in the [[population]]. Also, special breedings for [[plants]] and [[animals]] with an adaptation to low gravity or with [[radiation]] tolerance can be exchanged.
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==references==
 
<references/>
 
<references/>
  
[[category:Business]]
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==See also==
[[category:Commerce]]
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*[[lunarp:Luna-Mars Trade|Lunarpedia:Luna-Mars Trade]]
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[[Category:Commerce and Economics]]

Revision as of 14:24, 17 December 2018

Mars could return dividends at the same time that Luna does if they join forces.

Lunar Needs

Luna has considerable potential for manufacturing and shipping goods into orbit about Earth where it can be of financial benefit, but Luna is short of Hydrogen, Nitrogen, and Carbon. These elements are not only necessary for life, they are useful for many industrial processes. Mars has all of these elements in reasonably recoverable concentrations, and could export them to Luna and Earth orbiting factories.

Mining Phobos

Phobos may be rich in volatiles[1], which are needed by Luna. Phobos could be ground up and processed at one end and the tailings dumped at the other end. It should be many years before the entire moon is converted into tailings, during that time Luna and Earth orbiting factories should be churning out a great many solar power satellites, orbital habitats, and orbiting space ports to help lift traffic from Earth. If Phobos is 30% by weight volatiles and ships six thousand tons a year that is part ammonium cyanide and part propane, then after fifty years 100 billionths of Phobos will be processed.[2]

Martian Needs

Manufactured Goods

Initial Martian settlements will have little industrial infrastructure, and will have to import many goods such as electronics and medicine. Lunar settlements are in a good position to supply some of these needs, as the energy cost of transport from Luna is much less than from Earth.

Financing

Like Lunar settlements, Martian settlements need funding to survive. Sales of Martian resources to Lunar and other interests could be a major source of cash. The ultimate source of the cash is customers on Earth that buy power from space based solar power plant manufactured with materials mined on Luna.

Transportation

To get goods from Luna to Mars, those goods could be launched from Luna with mass drivers and transferred from Earth's orbital position to Mars with a VASIMR propulsion system. Each delivery could be packed with a fiber glass composite heat shield and a woven glass fiber parachute. There would be no need to pack the parachute compactly for shipment. It would be woven in space from lunar materials. Some of the MTLMOS flights would be dedicated to launching refueled methane/oxygen retro-rockets for the final landing deceleration. Shipments to Mars would rendezvous at a space station to mate with retro-rockets while the VASIMR transport system would take a shipment to Luna.

Mutual Needs

Settlements on Mars and Luna share many needs and opportunities.

Information

Information such as patented ideas, literature, scientific research, and computer programs can be created and traded between Luna and Mars at little to no transport expense using a radio link.

Genetic Diversity

Small vessels with cryopreserved germ or eggs can be exchanged in order to enhance the genetic diversity in the population. Also, special breedings for plants and animals with an adaptation to low gravity or with radiation tolerance can be exchanged.


references

  1. Near-Infrared Spectrophotometry of Phobos and Deimos http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=2002Icar..156...64R&db_key=AST&data_type=HTML&format=&high=452a3fe65704274
  2. Phobos weighs 1*10^16 kg according to the Phobos article at Wikipedia.

See also