diff --git a/include/osgSim/Sector b/include/osgSim/Sector
index b9398e0dd..58735ddda 100644
--- a/include/osgSim/Sector
+++ b/include/osgSim/Sector
@@ -169,11 +169,6 @@ class OSGSIM_EXPORT ElevationSector : public Sector, public ElevationRange
     protected:
 
         virtual ~ElevationSector() {}
-
-        float _cosMinElevation;
-        float _cosMinFadeElevation;
-        float _cosMaxElevation;
-        float _cosMaxFadeElevation;
 };