a good hard shove.) :-)
+Ralph Carmichael <ralph@pdas.com>
+Thanks to Ralph for his support of the FlightGear project. At
+ Public Domain Aeronautical Software you will find the PDAS CD-ROM for sale,
+ packed with great programs of use to aeronautical engineers. At this web
+ site there are also some sample downloads to show what is on the CD.
+ http://www.pdas.com
+
+
Didier Chauveau <chauveau@math.univ-mlv.fr>
Provided some initial code to parse the 30 arcsec DEM files found at:
http://edcwww.cr.usgs.gov/landdaac/gtopo30/gtopo30.html