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Deviousness `anmari has been spreading her infectious positivity throughout our community for over 6 years. Throughout this time Ana has been at the core of all things devious, passionately developing an eclectic gallery, helping organise devmeets, participating in chat events and also recently completed dedicating her time as a Community Volunteer. We are absolutely delighted to bestow the Deviousness Award for May 2013 to `anmari, congratulations! Read More
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Sta.sh
Please take a look at my Mars Design blog, it's really around what your illustrate !
[link]
That seems like a lot of wasted Delta-Vee when it could be done at apoapsis for a much Delta-Vee lower cost...
Perhaps it's the restrictions of heat shield technology at the time?
But for an elliptical orbit, envision an extremely elliptical orbit in a pure 2-body system. At apoapsis, the velocity may be a few m/s, but at periapsis, it may be thousands of m/s. So the most trajectory change, intuitively, will be at apoapsis.
And furthermore, during the burn, the ellipse will become a circle, and as it becomes an ellipse again, then the vessel's current position will be the apoapsis anyways...
Of course, the only proof though will come in the math. Wiki has it nicely worked out algebraically...
And I may have just finished Calculus, but sadly I have yet to learn calculus of multiple/a system of variables, which is what's required for true trajectory calculation in a realistic environment... Right?
It's true that even if you have enough remass to put yourself into orbit, nobody said you had to make a clean round orbit.
And yes, Orbiter is great.
I'm pretty sure you know it already but just in case, this website may interest you :
[link]
But most architectures don't involve that, so a lighter, non-reusable heat shield might be used that can't take as much heat... There's a lot of factors to consider...
Yeah, I did. Not sure how I originally found that site... But It's a great site. I think it may have been the thing to spark my interest in Aerospace, actually, years ago. Thanks for linking, anyways
If you want to now, my own mission plan would be a solar-VASIMR tractor, dropping on the fly a full suit of robot on Mars' surface, another tractor bringing a (empty) base on Phobos/Deimos, waiting for human to arrive laster/faster.
So... making robots survive the entry shouldn't be very hard.
Anyways, why Solar? Also if you're bringing the habs, you'd might as well have someone in them, instead of adding a whole extra mission for people to arrive in different habs
I have to admit I was thinking about fictionally tin&light solar panels, mounted on a Valkyrie-style light structure.
But as for why I wouldn't have somebody in, it's because the travel will take around 1 years at best, even with renewable food supply it will make everything very heavy. (and we only need humans there to do real-time remote control)
If we are to use nuclear power, may as well use it for thrust (the closed type), I'm sure it would be cheaper until we can have the miraculous VASIMR-Fusion thrust.