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Old 03-02-2017, 11:57 AM   #11
RyanW
 
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Join Date: Sep 2004
Location: Southeast NC
Default Re: [Space, Spaceships] Mars Semi-Cycler?

Quote:
Originally Posted by DaltonS View Post
That's almost 8 weeks difference. Have I missed something?
The longer transfer allows a shorter return. A 130 day transfer would be a 4 year trip for free return abort (or for a cycler). A 180 day transfer would be only a 2 year trip for the return. See this Wikipedia article.
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RyanW
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