Difference between revisions of "Talk:Hohmann transfer"
(Created page with "There also is the possibility of more direct orbits with aerodynamic braking that are both faster and require less energy. Should they be here or in another page?") |
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There also is the possibility of more direct orbits with aerodynamic braking that are both faster and require less energy. | There also is the possibility of more direct orbits with aerodynamic braking that are both faster and require less energy. | ||
Should they be here or in another page? | Should they be here or in another page? | ||
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| + | In particular for Mars, of course. | ||
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| + | Using the concepts of Aerocapture and hypersonic entry a vehicle can arrive at Mars with a high residual velocity, and use friction with the planetary atmosphere to slow down and eventually land. This allows for much shorter travel times with about the same fuel use as more conventional transfer orbits. An average Hohmann transfer orbit to Mars requires 259 days and a delta-v of 3,9 km/s. An hyperbolic orbit depending on aerocapture for braking can reduce this to 90-150 days depending on the year of travel. For example in aug. 2020 for a delta-V of 4,8 km/s Mars could be reached in 96 days according to the Trajectory Browser . | ||
Latest revision as of 13:31, 18 July 2019
There also is the possibility of more direct orbits with aerodynamic braking that are both faster and require less energy. Should they be here or in another page?
In particular for Mars, of course.
Using the concepts of Aerocapture and hypersonic entry a vehicle can arrive at Mars with a high residual velocity, and use friction with the planetary atmosphere to slow down and eventually land. This allows for much shorter travel times with about the same fuel use as more conventional transfer orbits. An average Hohmann transfer orbit to Mars requires 259 days and a delta-v of 3,9 km/s. An hyperbolic orbit depending on aerocapture for braking can reduce this to 90-150 days depending on the year of travel. For example in aug. 2020 for a delta-V of 4,8 km/s Mars could be reached in 96 days according to the Trajectory Browser .
