Driving Range

Alex brady dr x2
Alex brady d11b
Alex brady dr x 4
Alex brady dr33b
Alex brady drx5
Alex brady drx6
Alex brady drx7
Alex brady drx8
Alex brady drx3
Alex brady dr x1


design sketches
lunar mass driver for pushing containers of acceleration-resistant industrial feedstock (silicon, salt, diamond, steel etc) around the moon or into low orbit.