OwlFancier fucked around with this message at 12:22 on Jul 29, 2017

1. Save your current game (hereafter: "old save").
   
   
2. Pick one of the two craft and use the cheat menu to put it into an orbit around Kerbin.
   
   
3. Switch back to the other craft and go through re-entry with it, hopefully landing in one piece.
   
   
4. Make a new save (hereafter: "new save") and exit. It would be prudent to make a backup of this new save just in case this doesn't work.
   
   
5. Open the new save (*.sfs) in a text editor and identify the remaining craft (the one you parked in orbit). If your ship has a unique and specific name, it will be easy to find just by searching for that name. Each of your ships and other spacefaring objects ("vessels") will have all of their attributes defined in a format like this:
   

   code:

   VESSEL
   {
     pid = 66b9deee8b8540d7b963a8c2c6a2ea0b
     name = Sun Diver I
     type = Probe
     sit = ORBITING
     landed = False
     ....
     ORBIT
     {
       ....
     }
     PART
     {
       ....
     }
     ....
   }

   This will be quite long... like a few thousand lines long.
   
   
6. Open the old save and find that same craft. Copy those several thousand lines from the old save and paste them over the ones in the new save. This will be a million times easier if your text editor can collapse the curly braces containing that vessel's data:
   

   code:

   VESSEL
   {
     ....
   }

7. Save that file (the new save), then load it up in KSP. Your second craft should be in on its original sub-orbital trajectory in the same state that it was before you parked it in orbit.
   

Naked Bear fucked around with this message at 19:05 on Aug 13, 2017