diff --git a/src/Airports/simple.cxx b/src/Airports/simple.cxx
index 1dc6b7d76..f99b963f3 100644
--- a/src/Airports/simple.cxx
+++ b/src/Airports/simple.cxx
@@ -344,52 +344,6 @@ FGAirport* FGAirportList::search( const string& id)
     return (itr == airports_by_id.end() ? NULL : itr->second);
 }
 
-// wrap an FGIdentOrdering in an STL-compatible functor. not the most
-// efficent / pretty thing in the world, but avoids template nastiness in the 
-// headers, and we're only doing O(log(N)) comparisoms per search
-class orderingFunctor
-{
-public:
-  orderingFunctor(FGIdentOrdering* aOrder) :
-    mOrdering(aOrder)
-  { assert(aOrder); }
-  
-  bool operator()(const airport_map::value_type& aA, const std::string& aB) const
-  {
-    return mOrdering->compare(aA.first,aB);
-  }
-
-  bool operator()(const std::string& aA, const airport_map::value_type& aB) const
-  {
-    return mOrdering->compare(aA, aB.first);
-  }
-
-  bool operator()(const airport_map::value_type& aA, const airport_map::value_type& aB) const
-  {
-    return mOrdering->compare(aA.first, aB.first);
-  }
-  
-private:
-  FGIdentOrdering* mOrdering;
-};
-
-const FGAirport* FGAirportList::findFirstById(const std::string& aIdent, FGIdentOrdering* aOrder)
-{
-  airport_map_iterator itr;
-  if (aOrder) {
-    orderingFunctor func(aOrder);
-    itr = std::lower_bound(airports_by_id.begin(),airports_by_id.end(), aIdent, func);
-  } else {
-    itr = airports_by_id.lower_bound(aIdent);
-  }
-  
-  if (itr == airports_by_id.end()) {
-    return NULL;
-  }
-  
-  return itr->second;
-}
-
 // search for the airport nearest the specified position
 FGAirport* FGAirportList::search(double lon_deg, double lat_deg, double max_range)
 {
diff --git a/src/Airports/simple.hxx b/src/Airports/simple.hxx
index a37524318..eb14d386c 100644
--- a/src/Airports/simple.hxx
+++ b/src/Airports/simple.hxx
@@ -146,15 +146,6 @@ public:
     virtual bool pass(FGAirport*) { return true; }
 };
 
-class FGIdentOrdering {
-public:
-  virtual ~FGIdentOrdering()
-  { ; }
-  
-  virtual bool compare(const std::string& aA, const std::string& aB) const
-  { return aA < aB; }
-};
-
 typedef std::map < std::string, FGAirport* > airport_map;
 typedef airport_map::iterator airport_map_iterator;
 typedef airport_map::const_iterator const_airport_map_iterator;
@@ -186,14 +177,6 @@ public:
     // Returns NULL if unsucessfull.
     FGAirport* search( const std::string& id );
 
-    // Search for the next airport in ASCII sequence to the supplied id.
-    // eg. id = "KDC" or "KDCA" would both return "KDCA".
-    // NOTE: Numbers come prior to A-Z in ASCII sequence so id = "LD" would return "LD57", not "LDDP"
-    // optional ordering can make letters come before numbers
-    // Implementation assumes airport codes are unique.
-    // Returns NULL if unsucessfull.
-    const FGAirport* findFirstById(const std::string& aIdent, FGIdentOrdering* aOrder = NULL);
-
     // search for the airport closest to the specified position
     // (currently a linear inefficient search so it's probably not
     // best to use this at runtime.)  An FGAirportSearchFilter class
@@ -212,11 +195,6 @@ public:
      */
     const FGAirport *getAirport( unsigned int index ) const;
 
-    /**
-     * Return a pointer to the raw airport list
-     */
-    inline const airport_list* getAirportList() { return (&airports_array); }
-
     /**
      * Mark the specified airport record as not having metar
      */
diff --git a/src/Instrumentation/dclgps.cxx b/src/Instrumentation/dclgps.cxx
index 35141c9dc..3156c55ac 100644
--- a/src/Instrumentation/dclgps.cxx
+++ b/src/Instrumentation/dclgps.cxx
@@ -1035,55 +1035,6 @@ void DCLGPS::CreateFlightPlan(GPSFlightPlan* fp, vector<string> ids, vector<GPSW
 
 /***************************************/
 
-/**
- * STL functor for use with algorithms. This comapres strings according to
- * the KLN-89's notion of ordering, with digits after letters.
- * Also implements FGIdentOrdering so it can be passed into the various list
- * find helpers.
- */
- 
-class stringOrderKLN89 : public FGIdentOrdering
-{
-public:
-  bool operator()(const gps_waypoint_map::value_type& aA, const std::string& aB) const
-  {
-    return compare(aA.first, aB);
-  }
-  
-  bool operator()(const std::string& aS1, const std::string& aS2) const
-  {
-    return compare(aS1, aS2);
-  }
-  
-  virtual bool compare(const std::string& aS1, const std::string& aS2) const
-  {
-    if (aS1.empty()) return true;
-    if (aS2.empty()) return false;
-    
-    char* a = (char*) aS1.c_str();
-    char* b = (char*) aS2.c_str();
-    
-    for ( ; *a && *b; ++a, ++b) {
-      if (*a == *b) continue;
-      
-      bool aDigit = isdigit(*a);
-      bool bDigit = isdigit(*b);
-      
-      if (aDigit == bDigit) {
-        return (*a < *b); // we already know they're not equal
-      }
-      
-      // digit-ness differs
-      if (aDigit) return false; // s1 = KS9 goes *after* s2 = KSA
-      assert(bDigit);
-      return true; // s1 = KSF, s2 = KS5, s1 is indeed < s2
-    }
-    
-    if (*b) return true; // *a == 0, s2 is longer
-    return false; // s1 is longer, or strings are equal
-  }
-};
-
 class DCLGPSFilter : public FGPositioned::Filter
 {
 public: