Mars cycler - Revision history

Michel Lamontagne at 18:13, 20 October 2023

2023-10-20T18:13:49Z

Michel Lamontagne at 18:10, 20 October 2023

2023-10-20T18:10:20Z

Multivac at 13:11, 11 November 2020

2020-11-11T13:11:32Z

Michel Lamontagne at 21:20, 10 November 2020

2020-11-10T21:20:25Z

Multivac at 07:06, 25 July 2020

2020-07-25T07:06:10Z

Michel Lamontagne at 17:18, 9 August 2019

2019-08-09T17:18:18Z

Michel Lamontagne at 17:17, 9 August 2019

2019-08-09T17:17:11Z

Michel Lamontagne at 17:16, 9 August 2019

2019-08-09T17:16:47Z

Michel Lamontagne: Created page with "A Mars cycler is a hypothetical transportation system between Earth and Mars. The cycler is a vehicle on an elliptical orbit the crosses both the Earth's and Mars' orbit. Thi..."

2019-08-09T17:15:20Z

Created page with "A Mars cycler is a hypothetical transportation system between Earth and Mars. The cycler is a vehicle on an elliptical orbit the crosses both the Earth's and Mars' orbit. Thi..."

New page

A Mars cycler is a hypothetical transportation system between Earth and Mars.
The cycler is a vehicle on an elliptical orbit the crosses both the Earth's and Mars' orbit. This allows it periodically to be reached by a shuttle, either from Earth of from Mars. While moving with the cycler, no energy is expended. The cycler can serve as an habitat, and in particular provide radiation protection from relatively heavy construction, compared to the shuttles.
The shuttle requires about 6000 m/s to reach the cycler from Earth and another 9700 m/s to slow down when it reaches Mars. However, the deltaV at Mars could be replaced by aerodynamic capture, saving on propellant. On the reverse leg of the journey, the deltav requirements would be similar.

The transit times between the two planets would be about 5 month in either direction.

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 The shuttles require about 6km/s of [[Propulsion#Velocity_.28Rocket_equation.29|deltaV]] to reach the cycler from Earth and another 9.7km/s to slow down when they reach Mars, possibly reduced with the aid of [[skyhook|skyhooks]] or the use of aerodynamic capture.  On the reverse leg of the journey, the [[Propulsion#Velocity_.28Rocket_equation.29|deltaV]] requirements would be similar.
+The large deltaV requirements for the Mars cycler shuttles are a significant problem compared to more direct approaches.  Aldrin proposed using high ISP engines to put the cycler itself into Mars orbit in a semi-cycler arrangement.
 ==References==
 <references />

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 The shuttles require about 6km/s of [[Propulsion#Velocity_.28Rocket_equation.29|deltaV]] to reach the cycler from Earth and another 9.7km/s to slow down when they reach Mars, possibly reduced with the aid of [[skyhook|skyhooks]] or the use of aerodynamic capture.  On the reverse leg of the journey, the [[Propulsion#Velocity_.28Rocket_equation.29|deltaV]] requirements would be similar.
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 ==References==
 <references />

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-A Mars cycler is a hypothetical [[Mission concepts|transportation]] system between Earth and Mars.
+A Mars cycler, as described in <ref>https://youtu.be/42Je9Xczu0o?t=653</ref>, is a hypothetical [[Mission concepts|transportation]] system between Earth and Mars proposed by Buzz Aldrin as a way to reach Mars more economically.<ref>Wikipedia Mars Cycler https://en.wikipedia.org/wiki/Mars_cycler</ref>.
-The cycler is a vehicle on an elliptical orbit the crosses both the Earth's and Mars' orbit.  This allows it periodically to be reached by a shuttle, either from Earth of from Mars.  While moving with the cycler, no energy is expended by the shuttle.  The cycler can serve as an habitat, and in particular provide radiation protection from relatively heavy construction, compared to the shuttles.
+It is a vehicle on an elliptical orbit the crosses both the Earth's and Mars' orbits with transit times of about 5 month in either direction.  This allows it periodically to be reached by a shuttle, either from Earth of from Mars. While moving with the cycler, no energy is expended by the shuttle. The cycler can serve as a more hospitable habitat than the shuttles: in particular it can provide better radiation protection from relatively heavy construction, artificial spin gravity and larger amounts of electricity for its [https://en.wiktionary.org/wiki/hotel_load hotel load].
-The shuttles require about 6000 m/s to reach the cycler from Earth and another 9700 m/s to slow down when they reach Mars. However, the deltaV at Mars could be replaced by aerodynamic capture, saving on propellant.  On the reverse leg of the journey, the deltav requirements would be similar.
+The shuttles require about 6km/s of [[Propulsion#Velocity_.28Rocket_equation.29|deltaV]] to reach the cycler from Earth and another 9.7km/s to slow down when they reach Mars, possibly reduced with the aid of [[skyhook|skyhooks]] or the use of aerodynamic capture.  On the reverse leg of the journey, the [[Propulsion#Velocity_.28Rocket_equation.29|deltaV]] requirements would be similar.
-The transit times between the two planets would be about 5 month in either direction.
+An alternate approach would involve the cycler with a more efficient but generally mass or energy prohibitive thruster such as a [[Nuclear_thermal_propulsion|nuclear thermal]], [[Ion_thruster#Pulsed_Fission_Fusion_.28PuFF.29|Pulsed Fission Fusion(PuFF)]] or [[Ion_thruster#VASIMR|VASIMR]] thruster. This may reduce the [[Propulsion#Velocity_.28Rocket_equation.29|deltaV]] requirements for the comparably lower efficiency shuttle engines, increasing the effective mass fraction or decreasing trip time.
 {{stub}}
 ==References==
 <references />

← Older revision		Revision as of 21:20, 10 November 2020
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−	A Mars cycler is a hypothetical transportation system between Earth and Mars.	+	A Mars cycler is a hypothetical [[Mission concepts\|transportation]] system between Earth and Mars.

	The cycler is a vehicle on an elliptical orbit the crosses both the Earth's and Mars' orbit. This allows it periodically to be reached by a shuttle, either from Earth of from Mars. While moving with the cycler, no energy is expended by the shuttle. The cycler can serve as an habitat, and in particular provide radiation protection from relatively heavy construction, compared to the shuttles.		The cycler is a vehicle on an elliptical orbit the crosses both the Earth's and Mars' orbit. This allows it periodically to be reached by a shuttle, either from Earth of from Mars. While moving with the cycler, no energy is expended by the shuttle. The cycler can serve as an habitat, and in particular provide radiation protection from relatively heavy construction, compared to the shuttles.

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 The Mars cycler was proposed by Buzz Aldrin as a way to reach Mars more economically.<ref>Wikipedi Mars Cycler https://en.wikipedia.org/wiki/Mars_cycler</ref>
 ==References==
 <references />

@@ Line 1: / Line 1: @@
 A Mars cycler is a hypothetical transportation system between Earth and Mars.
 The cycler is a vehicle on an elliptical orbit the crosses both the Earth's and Mars' orbit.  This allows it periodically to be reached by a shuttle, either from Earth of from Mars.  While moving with the cycler, no energy is expended.  The cycler can serve as an habitat, and in particular provide radiation protection from relatively heavy construction, compared to the shuttles.
 The shuttle requires about 6000 m/s to reach the cycler from Earth and another 9700 m/s to slow down when it reaches Mars. However, the deltaV at Mars could be replaced by aerodynamic capture, saving on propellant.  On the reverse leg of the journey, the deltav requirements would be similar.
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 The Mars cycler was proposed by Buzz Aldrin as a way to reach Mars more economically.<ref>Wikipedi Mars Cycler https://en.wikipedia.org/wiki/Mars_cycler</ref>

← Older revision		Revision as of 17:16, 9 August 2019
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	The transit times between the two planets would be about 5 month in either direction.		The transit times between the two planets would be about 5 month in either direction.
		+
		+	The Mars cycler was proposed by Buzz Aldrin as a way to reach Mars more economically.<ref>Wikipedi Mars Cycler https://en.wikipedia.org/wiki/Mars_cycler</ref>