Kyler,

Chelton Flight System's Prick Rice has a patent for the airplane
centric version of this which takes into account terrain and wind. I
agree with you that inherently obvious stuff like this shouldn't be
patented, especially when it is strictly a software function.

By the way, have you seen the notice about the proposal to restrict the
DAFIF to DoD user's only starting October 1, 2005? I'm surprised that
you haven't posted any complaints about that!

Dean