To read those PDFs, you will need a PDF viewer such as Adobe Reader or Preview (installed by default on all Mac computers since about 2004).
A manual is also available (in PDF form) in English, German, French, Spanish, and Italian. This is version 10.50 of the manual to the home and professional versions of X‑Plane (X-Plane 10 Global and X‑Plane 10 for Professional Use, respectively).
Expert Essays: Unleashing the Full Potential of the Simulator.Flying a Boeing 747 with the Piggybacking Space Shuttle.Targeting Enemy Aircraft and Using Missiles.Using an Instructor Operator Station (IOS) for Flight Training.
Heading, Altitude, Vertical Speed, Speed Hold, Flight Level Change, and Auto-Throttle.Flying an Instrument Approach in X-Plane.Gyroscopes and Their Application in Flight.Navigation, Autopilots, and Flying on Instruments.Changing How Damage Affects the Aircraft.Changing How and Where the Aircraft Starts.Using ForeFlight for Real-Time Charts and Plates.Viewing the Behind-the-Scenes Flight Model.Replaying a Flight from a Flight Data Recorder (FDR).Viewing the Path Taken by Your Aircraft.Downloading Current Real-World Weather from the Internet.Drawing or Adding to Weather Patterns by Hand.Setting Randomly-Generated, Realistic Weather.Setting Uniform, Static Weather for the Whole World.Opening an Aircraft and Selecting a Livery.