Difference between revisions of "Direct cargo mission"

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== Non reusable cargo mission ==
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==Non reusable cargo mission==
  
 
===Mission plan===
 
===Mission plan===
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'''''{{PersPosArticle}} [[User:T.Neo|T.Neo]]'''''
 
'''''{{PersPosArticle}} [[User:T.Neo|T.Neo]]'''''
  
== Reusable cargo mission ==
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==Reusable cargo mission, SpaceX==
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 +
===Mission plan===
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* A pair of SpaceX Starships launch towards Mars on a rapid transfer orbit.
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* At Mars the Starships aerobrake and uses supersonic retropropulsion to achieve a soft landing.
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* The ships offload a fuel production plant and a large number of solar arrays, that refuel the ships.  They also unload exploration vehicles and other cargo.
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* After two years on Mars, the ships take off from Mars as SSTO vehicles and return to Earth.
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* Using high velocity direct entry the ships aerobrake and return to their launch sites for re-use.
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=== Challenges ===
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* The flight path is unproven. 
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* The re entry conditions may be too severe.
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* In situ preparation of propellant may fail.
  
=== Mission plan ===
 
 
[[Category:Settlement Transport Systems]]
 
[[Category:Settlement Transport Systems]]

Revision as of 09:38, 27 May 2019

This article describes a direct cargo mission.


Non reusable cargo mission

Mission plan

  • An Ares V class rocket launches the cargo on a Hohmann Transfer trajectory to Mars using an EDS (Earth Departure Stage).
  • At Mars, the lander detaches from the orbital module and enters the atmosphere. It deploys a parachute, then uses retrorockets (Not mono-propellant rockets like on previous landers, but more powerful bi-propellant rockets.) to land on the surface. A crushable section, in the place of legs, cushions the landing.
  • The orbital module aerobrakes into orbit to become a communication/global positioning satellite.

Challenges

  • Bi-propellant retrorockets have not been tested on Mars.
  • The heat-shield will have to detach first
  • Large payloads have not been landed on Mars before.

This article reflects the personal position of T.Neo

Reusable cargo mission, SpaceX

Mission plan

  • A pair of SpaceX Starships launch towards Mars on a rapid transfer orbit.
  • At Mars the Starships aerobrake and uses supersonic retropropulsion to achieve a soft landing.
  • The ships offload a fuel production plant and a large number of solar arrays, that refuel the ships. They also unload exploration vehicles and other cargo.
  • After two years on Mars, the ships take off from Mars as SSTO vehicles and return to Earth.
  • Using high velocity direct entry the ships aerobrake and return to their launch sites for re-use.

Challenges

  • The flight path is unproven.
  • The re entry conditions may be too severe.
  • In situ preparation of propellant may fail.