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.


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