Why can't I see the aircrafts I added to "Aircraft" folder to the game?

Question

My xplane 11 is steam edition. I added so many aircrafts to 'Aircrafts" folder.

I doubled check every thing. when I started the game and clicked New flight, still the same aircrafts.

please help. I am using  X plane 11 steam edition.

Answer 1

Double check that there aren't too many folders in the file path, and that the downloads were unzipped entirely. If the aircraft was made in an older version (X-Plane 10) you may need to check "show extra aircraft from old versions" in the Flight Configuration screen. If it is even older than that it may not be possible to use it in X-Plane 11.