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JoolTube: Single stage, nonstop trip to Eve and back


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Eve’s extremely thick atmosphere, immense surface gravity and high escape velocity, makes it one of the most challenging destinations, specially you’re thinking of getting out of there as well, not to mention if it’s abroad a single stage space plane! Bradley Whistance achieved something most thought was impossible! Amazing…

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This is seriously impressive. One minor point: it is possible to get a gravity assist off the planet you are ejecting from. It just requires a very counter-intuitive retrograde burn at apohelion (solar apoapsis) to set up favorable slingshot geometry. I believe Juno took such an approach to Jupiter: it ejected itself into a 2-year orbit, then burned about 800-900 m/sec retrograde at apohelion to set up a slingshot to Jupiter.

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