Subdirectories
==============
OpenGL/
-------
"main" and OpenGL dependent mouse/keyboard/graphics code.


Aircraft/
---------
Structure and code to tie together all the pieces of an aircraft such
as flight model, engine model, panel, controls, etc.


Controls/
---------
Provide a standardized interface to all aircraft controls.


Flight/
-------
Strucures and code to implement various flight models.  Provides a 
standardized interface to all interesting flight model variabls.


Math/
-----
Contains miscellaneous matrix/vector routines.


Scenery/
--------
Scenery parsing/generating code.


Sound/
------
Sound management code


Timer/
------
Code to handle time and timing of events.


Weather/
--------
Weather management and modeling code.