Magnetic launch assist

[CreatedEvolution]

I noticed that they do have some crafts that actually start to take off on a track. I am wondering if space x uses magnetic propulsion to reach speeds of japans magnetic train before lift off.

Would a deep magnetic silo cut costs for rocket propulsion? The initial magnetic propulsion can push you to 375mph before take off.

 

[CreatedEvolution]

I would start by suggesting a track on the ground and if it cut costs enough to invest in digging a hole for magnetic propulsion.