-// Set pos given an airport id
-bool fgSetPosFromAirportID( const string& id );
-
-// Set tower position given an airport id
-bool fgSetTowerPosFromAirportID( const string& id, double hdg );
-
-// Set position and heading given an airport id and heading (degrees)
-bool fgSetPosFromAirportIDandHdg( const string& id, double tgt_hdg );
-
-//find altitude given glideslope and offset distance or offset distance
-//given glideslope and altitude
-void fgSetPosFromGlideSlope(void);