Eletrograppler.

      So I have this idea... Since space is a vacuum, I am guessing that propulsion is a difficult obstacle to over come. My suggestion is to install a 3 phase grappling system to move through space using eletro-magnetic impulsion/repulsion. 

      The project I estimated with the more independent nations working round the clock to build would be, a grand total 25-45 years depending on the funds and brave manpower available to develop it. I figured 14 points of contact should enable space travelers to move more quickly using less energy. The structures would not need to be too large. Only large enough to allow a craft or vessel the approximate size of current shuttle technology to pass through it, or double that. The initial 3 phases and outward expansion would be on going.
   
      What you have are rings with an electro-magnetic equilibrium so as not to yaw the craft. Both the rings and the craft should be able to shift polarity. You can control the speed of the craft by shifting polarity and emission of EMF. The rings at focused contact points should be bi-directional meaning able to be focused in either direction.
   
      I think we should build ring 1 before we go to Mars and use the Martian atmosphere for return propulsion if possible. we can set these at 14 measured points around the globe to reach just about any destination in any direction. What do you think?