>>12067744For humans? Magnetic rail launcher up an equatorial mountain in a Hyperloop type vacuum tube. Capsule has ice or transpirational cooling jacket in an aerospike configuration. Lasers along range increase its velocity from ~4km/s to ~9km/s using OTEC oceanic thermal conversion for power for the lasers to evaporate the water ice. Craft uses a small RCS too circularize.
Infrastructure for something like this is in the $20-50B range but it produces a system that can constantly launch 10 or 20 ton capsules for the cost of building the capsules and maintenance.
>this is 100% ripped off from Marshal Savage.