Fixed warnings as mentioned in

https://dev.vatsim-germany.org/boards/22/topics/2587?r=2598#message-2598
and found by
+win32-msvc*:QMAKE_CXXFLAGS_WARN_ON *= /Wall /W3 /wd4640 /wd4619 /wd4350 /wd4351

src/blackmisc/simulation/simdirectaccessownaircraft.h

@@ -38,6 +38,9 @@ namespace BlackMisc
         class IOwnAircraftProvider : public IOwnAircraftProviderReadOnly
         {
         public:
+
+            using IOwnAircraftProviderReadOnly::ownAircraft;
+
             //! Own aircraft
             virtual CSimulatedAircraft &ownAircraft() = 0;
 

src/blackmisc/simulation/simdirectaccessremoteaircraft.h

@@ -63,6 +63,11 @@ namespace BlackMisc
         class IRemoteAircraftProvider : public IRemoteAircraftProviderReadOnly
         {
         public:
+
+            using IRemoteAircraftProviderReadOnly::remoteAircraft;
+            using IRemoteAircraftProviderReadOnly::remoteAircraftParts;
+            using IRemoteAircraftProviderReadOnly::remoteAircraftSituations;
+
             //! All rendered aircraft
             //! \note in memory reference, not thread safe
             virtual CSimulatedAircraftList &remoteAircraft() = 0;