diff --git a/src/osgGA/DriveManipulator.cpp b/src/osgGA/DriveManipulator.cpp
index ebe1659c1..c972add7e 100644
--- a/src/osgGA/DriveManipulator.cpp
+++ b/src/osgGA/DriveManipulator.cpp
@@ -434,7 +434,7 @@ bool DriveManipulator::calcMovement()
             {
                 // pan model.
 
-                _velocity += dt*_modelScale*0.02;
+                _velocity += dt*_modelScale*0.01;
 
             }
             else if (buttonMask==GUIEventAdapter::MIDDLE_MOUSE_BUTTON ||
@@ -447,7 +447,7 @@ bool DriveManipulator::calcMovement()
             else if (buttonMask==GUIEventAdapter::RIGHT_MOUSE_BUTTON)
             {
 
-                _velocity -= dt*_modelScale*0.02;
+                _velocity -= dt*_modelScale*0.01;
 
             }
             break;
diff --git a/src/osgGA/FlightManipulator.cpp b/src/osgGA/FlightManipulator.cpp
index 1a702025b..d76d917ae 100644
--- a/src/osgGA/FlightManipulator.cpp
+++ b/src/osgGA/FlightManipulator.cpp
@@ -237,7 +237,7 @@ bool FlightManipulator::calcMovement()
     {
         // pan model.
 
-        _velocity += dt*_modelScale*0.05f;
+        _velocity += dt*_modelScale*0.02f;
 
     }
     else if (buttonMask==GUIEventAdapter::MIDDLE_MOUSE_BUTTON ||
@@ -250,7 +250,7 @@ bool FlightManipulator::calcMovement()
     else if (buttonMask==GUIEventAdapter::RIGHT_MOUSE_BUTTON)
     {
 
-        _velocity -= dt*_modelScale*0.05f;
+        _velocity -= dt*_modelScale*0.02f;
 
     }