: Features detailed flight plans based on the actual airline routes and frequencies from that season.
If you’re looking for for FSX, P3D v3/v4, here are proper options: : Features detailed flight plans based on the
First, FSX probably refers to Microsoft Flight Simulator X. Then P3D is Prepar3d, a popular flight simulation software made by Lockheed Martin. V3 and V4 are the versions of Prepar3d. So the user is talking about compatibility with these versions. here are proper options: First