Original: License: Freeware, downloaded form Rikoooo.com

What you will get and where are issues:

•  the dds textures looks better than the ktx textures but both have issues to show in the sim I dont find out why.
• animations works but also some issues on the center gear and engines
• material issues in few parts of aircraft
• Texturing and shading , animation is a difficult work and needs a lot of time to find out the small things to make it better
• effects (lights, smoke etc) not optimized for this aircraft, im working on it.
• doors should work but not optimized.
• You need a install of  FlyByWire A 320 in your community folder, why? 
  the most difficult and complicated part is the cockpit animation and texturing. Im  work on it, but for this time  you have to use this cockpit for a while
  
• But yes, the DC9 is flying form A to B from Basel to Frankfurt :-) this was my first flight, when i was young.
  
• What is to do next on the exterior model:
• animations for thrust reverser
• better wing flex
• lights
• flightmodel fuselage
• engine materials
• convert to msfs 2024 materials
• using ktx2 textures

credits:

all creators for fsx ciarcrafts like  Erick Cantu,  George Arana and many more, also the FlyByWire-Team with their hard work for our community.

happy flight,