[NicknamedBob]

"Exactly how fast do you think this thing needs to be?"

You get a lot of frictional losses from the atmosphere during the initial boost phase. I want to end up at orbital and sub-orbital speed.

If possible, I want to be able to go single-shot to interplanetary. That's an after atmosphere speed of seven miles per second, or over 25000 miles per hour.

I'd probably need to exit the launcher at Mach 40.

(New tagline)

[Tax-chick]

Good tagline. I think your innate superiority overcomes any technological backwardness.

[stephenjohnbanker]

Good tagline : )