3.0 IMPROVING YOUR SHIP:

There are three types of ship improvements:
     a. Navigation devices.
     b. Weapons and armor (shields).
     c. Miscellaneous
Improvements are obtained at the Trading Post and at Space Equipment Docks.  (You can buy weapons at the manufacturing stations, but only if you don't have any weapons of that type already installed.  You can only upgrade weapons at a Space Equipment Dock.)