Direct cargo mission - Revision history

Michel Lamontagne: /* Variant */

2023-09-01T18:31:10Z

Variant

← Older revision		Revision as of 19:31, 1 September 2023
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	===Variant===		===Variant===
	A simple variant might be to leave the first cargo ships on Mars. It may not be cost effective to return the first Starships landed on Mars, as the cost of the vehicle is not excessively high and the rapid development process SpaceX uses means the engines and ships may be out of date by the time they return.		A simple variant might be to leave the first cargo ships on Mars. It may not be cost effective to return the first Starships landed on Mars, as the cost of the vehicle is not excessively high and the rapid development process SpaceX uses means the engines and ships may be out of date by the time they return. The main cost of a cargo starship will be the booster, and not the second stage Starship.

Michel Lamontagne: /* Challenges */

2023-09-01T18:30:20Z

Challenges

← Older revision		Revision as of 19:30, 1 September 2023
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	[[Category:Settlement Transport Systems]]		[[Category:Settlement Transport Systems]]

			===Variant===
			A simple variant might be to leave the first cargo ships on Mars. It may not be cost effective to return the first Starships landed on Mars, as the cost of the vehicle is not excessively high and the rapid development process SpaceX uses means the engines and ships may be out of date by the time they return.

Michel Lamontagne: /* Reusable cargo mission, SpaceX */

2019-05-27T17:40:25Z

Reusable cargo mission, SpaceX

← Older revision		Revision as of 18:40, 27 May 2019
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	===Mission plan===		===Mission plan===

	* A pair of SpaceX Starships launch towards Mars on a rapid transfer orbit.		*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.		*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.		*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.		*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.		*Using high velocity direct entry the ships aerobrake and return to their launch sites for re-use.

	=== Challenges ===		===Challenges===

	* The flight path is unproven.		*The flight path is unproven.
	* The re entry conditions may be too severe.		*The re entry conditions may be too severe.
	* In situ preparation of propellant may fail.		*In situ preparation of propellant may fail.
			*The equipment may not re-start when required.
			*CO2 condensation on the propellant tanks must be accounted for.
			*Landing on an unprepared site may damage the engines or the ships.

	[[Category:Settlement Transport Systems]]		[[Category:Settlement Transport Systems]]

Michel Lamontagne at 17:38, 27 May 2019

2019-05-27T17:38:07Z

← Older revision		Revision as of 18:38, 27 May 2019
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	== Non reusable cargo mission ==		==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 ==		==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.

	~~=== Mission plan ===~~
	[[Category:Settlement Transport Systems]]		[[Category:Settlement Transport Systems]]

Michel Lamontagne at 17:29, 27 May 2019

2019-05-27T17:29:14Z

← Older revision		Revision as of 18:29, 27 May 2019
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	== Mission plan ==		== 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).		*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 ~~enteres~~ the atmosphere. It deploys a parachute, then uses retrorockets (Not ~~monopropellant~~ rockets like on previous landers, but more powerful ~~bipropellant~~ rockets.) to land on the surface. A crushable section, in the place of legs, cushions the landing.		*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 ~~satillite~~.		*The orbital module aerobrakes into orbit to become a communication/global positioning satellite.

	===Challenges===		===Challenges===
	*~~Bipropellant~~ retrorockets have not been tested on Mars.
	*The ~~heatsheild~~ will have to detach first		*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.		*Large payloads have not been landed on Mars before.

	'''''{{PersPosArticle}} [[User:T.Neo\|T.Neo]]'''''		'''''{{PersPosArticle}} [[User:T.Neo\|T.Neo]]'''''

			== Reusable cargo mission ==

			=== Mission plan ===
	[[Category:Settlement Transport Systems]]		[[Category:Settlement Transport Systems]]

Jburk at 07:05, 18 December 2018

2018-12-18T07:05:55Z

← Older revision		Revision as of 08:05, 18 December 2018
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	'''''{{PersPosArticle}} [[User:T.Neo\|T.Neo]]'''''		'''''{{PersPosArticle}} [[User:T.Neo\|T.Neo]]'''''

	[[Category:~~Cargo Missions~~]]		[[Category:Settlement Transport Systems]]

Farred: change category

2012-05-21T02:53:45Z

change category

← Older revision		Revision as of 03:53, 21 May 2012
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	'''''{{PersPosArticle}} [[User:T.Neo\|T.Neo]]'''''		'''''{{PersPosArticle}} [[User:T.Neo\|T.Neo]]'''''

	[[Category:~~Manned~~ Missions]]		[[Category:Cargo Missions]]

Farred: add category

2012-05-21T02:50:45Z

add category

← Older revision		Revision as of 03:50, 21 May 2012
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	'''''{{PersPosArticle}} [[User:T.Neo\|T.Neo]]'''''		'''''{{PersPosArticle}} [[User:T.Neo\|T.Neo]]'''''

			[[Category:Manned Missions]]

T.Neo: New page: This article describes a direct 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)...

2008-08-19T08:57:54Z

New page: This article describes a direct 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)...

New page

This article describes a direct 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 enteres the atmosphere. It deploys a parachute, then uses retrorockets (Not monopropellant rockets like on previous landers, but more powerful bipropellant 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 satillite.

===Challenges===
*Bipropellant retrorockets have not been tested on Mars.
*The heatsheild will have to detach first
*Large payloads have not been landed on Mars before.

'''''{{PersPosArticle}} [[User:T.Neo|T.Neo]]'''''