Subdirectories
==============


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.


gltk
----
"main" and platform dependent mouse/keyboard/graphics code.