If you could snap your fingers and have your ship moving at any speed, the speed wouldn't make a difference for the crew. In free fall in vacuum, there's no difference between eight miles per hour and eight million miles per hour.
However you can't snap your fingers and be moving at any speed, you need to accelerate. The speeds at which interplanetary travel would take several days or hours are so high that even accelerating constantly would mean exerting dozens of Gs on the crew for the entire trip. This is obviously bad.
You really only have two solutions. One is to allow for longer trip times and deal with that. The other is to shrink your solar system, put it around a low mass red dwarf for example, or better yet instead of a planet make your setting a large habitable moon orbiting a gas giant. That way you can have other large moons, many captured asteroid moons, and even a large planetary ring system to use.
Leo Turner
That's true for a regular gravity slingshot, but not true for an Oberth maneuver, in which you burn your rockets at maximum just as you swing past a planet, to amplify the effect. That might have been what the movie was showing.
Juan Butler
How about Kalgash?
Jordan Thomas
Yep, the entire system is tiny, and all seven planets are about as big as Earth. The star is about as big as Jupiter. It's so comfy.
Leo Edwards
>space lift
they are a meme mate
Anthony James
Even then you only feel the force exerted by your engines. That force feels the same to you whether you're deep inside a gravity well or far off in interplanetary space.
Elijah Myers
what is wrong with ksp?
the orbital physics seem legit
Ian Evans
Not that guy, Ksp is past its golden age but it's still the best 'realistic' space game where you actually build rockets.
Orbital mechanics in Ksp are hugely simplified because of the use of rigid spheres of influence, but the difference compared to real life is not so huge that it makes much of a difference unless you're planning on doing anything to do with Lagrange points.
Easton Foster
>space game where you actually build rockets.
You don't build rockets in ksp?
Have you ever tried rss+ro+real fuels?
Eli Kelly
Yes, my current install is a full realistic progression/realism overhaul/RSS setup.
You do build rockets in stock Ksp, it's just greatly simplified. In RP-0 you're just more involved with the finer details of launch vehicle construction.