Basic help resources on FlightGear:
Short reference including key codes (also available as PDF)
Guide to joystick and keyboard configuration
Information for power users:
Guide for the Local Weather Package
PDF collated from README files in Docs/
Getting more help:
Additional documentation can be found in the Docs/ folder.
Since FGFS has a brisk pace of development, some information may be inaccurate.
More information and help is available on the FlightGear Forum and FlightGear Wiki.
Get new versions, add-ons and more from the website at www.flightgear.org for free.