>be high elevation MT Fuji based Mars Shinkansen Express: maglev assisted rocket launcher
>Lower vertical distance to orbit
>marginally less gravity
>less drag on takeoff
>fuel savings
Why are costal, sea level, launch sites preferred by rocket companies today? Is it mostly to do with launch failure safety?

To the central point of my inquiry today. Why the fuck are we not using maglev technology to assist sling shot rockets into space. It would save fuel if they only had to start burning it once they were a mile up with an initial velocity of 200km/h. There must be a fatal flaw I’m not seeing. Plus why the fuck did the US suspend research into rail guns? Not practical my ass.