Fix some warnings identified by Clang

_ unused private members. Removed in most cases, commented
out in a couple of cases where it feels as if the code might be used in the future.

src/AIModel/AICarrier.hxx

@@ -104,14 +104,11 @@ private:
     double dist;            // the distance of the eyepoint from the flols
     double angle;
     int source;             // the flols light which is visible at the moment
-    bool wave_off_lights;
     bool in_to_wind;
 
     // these are for maneuvering the carrier
     SGGeod mOpBoxPos;
 
-    double wind_speed_from_north_kts ;
-    double wind_speed_from_east_kts  ;
     double wind_speed_kts;  //true wind speed
     double wind_from_deg;   //true wind direction
     double rel_wind;

src/AIModel/submodel.hxx

@@ -115,10 +115,6 @@ private:
     submodel_vector_type       subsubmodels;
     submodel_vector_iterator   submodel_iterator, subsubmodel_iterator;
 
-    float trans[3][3];
-    float in[3];
-    float out[3];
-
     //double Rx, Ry, Rz;
     //double Sx, Sy, Sz;
     //double Tx, Ty, Tz;
@@ -142,7 +138,7 @@ private:
     double _parent_pitch;
     double _parent_roll;
     double _parent_speed;
-    double _parent_ID;
+    //double _parent_ID;
 
     double _x_offset;
     double _y_offset;

src/FDM/YASim/Hitch.hpp

@@ -77,12 +77,12 @@ private:
     float _forceMagnitude;
     double _global_ground[4];
     float _global_vel[3];
-    char _name[256];
+    //char _name[256];
     State* _state;
     float _dist;
     float _timeLagCorrectedDist;
     SGPropertyNode_ptr _towEndNode;
-    const char *_towEndPropertyName;
+    //const char *_towEndPropertyName;
     bool _towEndIsConnectedToProperty;
     bool _nodeIsMultiplayer;
     bool _nodeIsAiAircraft;

src/FDM/YASim/TurbineEngine.hpp

@@ -43,8 +43,8 @@ private:
 
     float _n2Min;
     float _n2Target;
-    float _torqueTarget;
-    float _fuelFlowTarget;
+    //float _torqueTarget;
+    //float _fuelFlowTarget;
 
     float _n2;
     float _rho;

src/Instrumentation/rnav_waypt_controller.cxx

@@ -262,7 +262,6 @@ public:
 	LegWayptCtl(RNAV* aRNAV, const WayptRef& aWpt) :
     WayptController(aRNAV, aWpt),
     _waypointOrigin(),
-    _distanceOriginTargetMeter(0.0),
     _distanceOriginAircraftMeter(0.0),
     _distanceAircraftTargetMeter(0.0),
     _courseOriginToAircraft(0.0),
@@ -366,7 +365,6 @@ private:
    * A(from), B(to), D(position) perhaps off course
    */
   SGGeod _waypointOrigin;
-  double _distanceOriginTargetMeter;
   double _distanceOriginAircraftMeter;
   double _distanceAircraftTargetMeter;
   double _courseOriginToAircraft;

src/Navaids/airways.hxx

@@ -44,6 +44,12 @@ public:
   
   static void load(const SGPath& path);
   
+    double topAltitudeFt() const
+    { return _topAltitudeFt; }
+    
+    double bottomAltitudeFt() const
+    { return _bottomAltitudeFt; }
+    
   /**
    * Track a network of airways
    *