diff --git a/src/blackmisc/avairport.cpp b/src/blackmisc/avairport.cpp
index 9ea2ba561..c2b40adb8 100644
--- a/src/blackmisc/avairport.cpp
+++ b/src/blackmisc/avairport.cpp
@@ -135,9 +135,10 @@ namespace BlackMisc
         /*
          * Distance to planne
          */
-        const CLength &CAirport::calculcateDistanceToPlane(const CCoordinateGeodetic &position)
+        const CLength &CAirport::calculcateDistanceAndBearingToPlane(const CCoordinateGeodetic &position)
         {
             this->m_distanceToPlane = Geo::greatCircleDistance(this->m_position, position);
+            this->m_bearingToPlane = Geo::initialBearing(this->m_position, position);
             return this->m_distanceToPlane;
         }
 
@@ -146,6 +147,11 @@ namespace BlackMisc
          */
         QVariant CAirport::propertyByIndex(int index) const
         {
+            if (index > static_cast<int>(CAirport::IndexBearing))
+            {
+                return this->m_position.propertyByIndex(index);
+            }
+
             switch (index)
             {
             case IndexIcao:
@@ -155,8 +161,12 @@ namespace BlackMisc
             case IndexDescriptiveName:
                 return QVariant(this->m_descriptiveName);
             case IndexPosition:
-                return this->getPosition().toQVariant();
-            case IndexDistanceToPlane:
+                return this->m_position.toQVariant();
+            case IndexElevation:
+                return this->getElevation().toQVariant();
+            case IndexBearing:
+                return this->m_bearingToPlane.toQVariant();
+            case IndexDistance:
                 return this->m_distanceToPlane.toQVariant();
             default:
                 break;
@@ -172,6 +182,11 @@ namespace BlackMisc
          */
         void CAirport::setPropertyByIndex(const QVariant &variant, int index)
         {
+            if (index >= static_cast<int>(CAirport::IndexBearing))
+            {
+                this->m_position.setPropertyByIndex(variant, index);
+            }
+
             switch (index)
             {
             case IndexIcao:
@@ -186,6 +201,12 @@ namespace BlackMisc
             case IndexPosition:
                 this->setPosition(variant.value<CCoordinateGeodetic>());
                 break;
+            case IndexBearing:
+                this->setBearingToPlane(variant.value<CAngle>());
+                break;
+            case IndexDistance:
+                this->setDistanceToPlane(variant.value<CLength>());
+                break;
             default:
                 Q_ASSERT_X(false, "CAirport", "index unknown (setter)");
                 break;
diff --git a/src/blackmisc/avairport.h b/src/blackmisc/avairport.h
index fc61c8e06..8404370a5 100644
--- a/src/blackmisc/avairport.h
+++ b/src/blackmisc/avairport.h
@@ -29,7 +29,9 @@ namespace BlackMisc
                 IndexIcaoAsString,
                 IndexDescriptiveName,
                 IndexPosition,
-                IndexDistanceToPlane
+                IndexElevation,
+                IndexDistance,
+                IndexBearing
             };
 
             //! Default constructor.
@@ -71,24 +73,36 @@ namespace BlackMisc
             //! Set position
             void setPosition(const BlackMisc::Geo::CCoordinateGeodetic &position) { this->m_position = position; }
 
+            //! Elevation
+            const BlackMisc::PhysicalQuantities::CLength getElevation() const { return this->getPosition().geodeticHeight(); }
+
             //! Get the distance to own plane
             const BlackMisc::PhysicalQuantities::CLength &getDistanceToPlane() const { return m_distanceToPlane; }
 
             //! Set distance to own plane
             void setDistanceToPlane(const BlackMisc::PhysicalQuantities::CLength &distance) { this->m_distanceToPlane = distance; }
 
+            //! Get the bearing to own plane
+            const BlackMisc::PhysicalQuantities::CAngle &getBearingToPlane() const { return m_bearingToPlane; }
+
+            //! Set bearing to own plane
+            void setBearingToPlane(const BlackMisc::PhysicalQuantities::CAngle &angle) { this->m_bearingToPlane = angle; }
+
             //! Valid distance?
             bool hasValidDistance() const { return !this->m_distanceToPlane.isNull();}
 
+            //! Valid bearing?
+            bool hasValidBearing() const { return !this->m_bearingToPlane.isNull();}
+
             //! Valid ICAO code
             bool hasValidIcaoCode() const { return !this->getIcao().isEmpty(); }
 
             /*!
-             * Calculcate distance to plane, set it, and also return it
+             * Calculcate distance and bearing to plane, set it, and return distance
              * \param position other position
              * \return
              */
-            const BlackMisc::PhysicalQuantities::CLength &calculcateDistanceToPlane(const BlackMisc::Geo::CCoordinateGeodetic &position);
+            const BlackMisc::PhysicalQuantities::CLength &calculcateDistanceAndBearingToPlane(const BlackMisc::Geo::CCoordinateGeodetic &position);
 
             //! \copydoc ICoordinateGeodetic::latitude
             virtual const BlackMisc::Geo::CLatitude &latitude() const override
@@ -147,6 +161,7 @@ namespace BlackMisc
             CAirportIcao m_icao;
             QString m_descriptiveName;
             BlackMisc::Geo::CCoordinateGeodetic m_position;
+            BlackMisc::PhysicalQuantities::CAngle m_bearingToPlane;
             BlackMisc::PhysicalQuantities::CLength m_distanceToPlane; // make mutable ?
         };
 
diff --git a/src/blackmisc/avairportlist.cpp b/src/blackmisc/avairportlist.cpp
index d8d95d20a..ec4c71e07 100644
--- a/src/blackmisc/avairportlist.cpp
+++ b/src/blackmisc/avairportlist.cpp
@@ -47,7 +47,7 @@ namespace BlackMisc
 
         void CAirportList::replaceOrAddByIcao(const CAirport &addedOrReplacedAirport)
         {
-            Q_ASSERT(addedOrReplacedAirport.hasValidIcaoCode());
+            if (!addedOrReplacedAirport.hasValidIcaoCode()) return; // ignore invalid airport
             this->replaceOrAdd(&CAirport::getIcao, addedOrReplacedAirport.getIcao(), addedOrReplacedAirport);
         }
 
@@ -75,28 +75,28 @@ namespace BlackMisc
         /*
          * Distances to own plane
          */
-        void CAirportList::calculateDistancesToPlane(const Geo::CCoordinateGeodetic &position)
+        void CAirportList::calculcateDistanceAndBearingToPlane(const Geo::CCoordinateGeodetic &position)
         {
             std::for_each(this->begin(), this->end(), [ & ](CAirport & airport)
             {
-                airport.calculcateDistanceToPlane(position);
+                airport.calculcateDistanceAndBearingToPlane(position);
             });
         }
 
-        void CAirportList::removeIfOutsideRange(const Geo::CCoordinateGeodetic &position, const CLength &distance, bool updateDistance)
+        void CAirportList::removeIfOutsideRange(const Geo::CCoordinateGeodetic &position, const CLength &maxDistance, bool updateDistance)
         {
             CLength d;
             for (CAirportList::iterator i = begin(); i != end();)
             {
                 if (updateDistance)
                 {
-                    d = i->calculcateDistanceToPlane(position);
+                    d = i->calculcateDistanceAndBearingToPlane(position);
                 }
                 else
                 {
                     d = i->greatCircleDistance(position);
                 }
-                if (distance > d)
+                if (maxDistance < d)
                 {
                     i = this->erase(i);
                 }
diff --git a/src/blackmisc/avairportlist.h b/src/blackmisc/avairportlist.h
index 89a56d3e1..52ab771f2 100644
--- a/src/blackmisc/avairportlist.h
+++ b/src/blackmisc/avairportlist.h
@@ -47,10 +47,10 @@ namespace BlackMisc
             CAirportList findWithinRange(const BlackMisc::Geo::ICoordinateGeodetic &coordinate, const BlackMisc::PhysicalQuantities::CLength &range) const;
 
             //! Update distances to coordinate, usually own aircraft's position
-            void calculateDistancesToPlane(const BlackMisc::Geo::CCoordinateGeodetic &position);
+            void calculcateDistanceAndBearingToPlane(const BlackMisc::Geo::CCoordinateGeodetic &position);
 
             //! Remove if outside given radius
-            void removeIfOutsideRange(const BlackMisc::Geo::CCoordinateGeodetic &position, const BlackMisc::PhysicalQuantities::CLength &distance, bool updateDistance);
+            void removeIfOutsideRange(const BlackMisc::Geo::CCoordinateGeodetic &position, const BlackMisc::PhysicalQuantities::CLength &maxDistance, bool updateDistance);
 
             //! Register metadata
             static void registerMetadata();