Fix a devide by zero bug"src/Autopilot/newauto.cxx

diff --git a/src/Autopilot/newauto.cxx b/src/Autopilot/newauto.cxx
index e0bed6acdcd6b2ad15f0cb92a9c523e7d46aa7cc..5c2109ecd430dd8549ac677b62de261d97c36f86 100644 (file)
--- a/src/Autopilot/newauto.cxx
+++ b/src/Autopilot/newauto.cxx
@@ -871,7 +871,7 @@ FGAutopilot::update (double dt)
                       double lookahead;
 
                        // estimate speed in 10 seconds
-                      lookahead =  airspeed_node->getFloatValue() + ( airspeed_node->getFloatValue() - previous_speed) * (10/dt);
+                      lookahead =  airspeed_node->getFloatValue() + ( airspeed_node->getFloatValue() - previous_speed) * (10/(dt + 0.000001));
        previous_speed =  airspeed_node->getFloatValue();
 
                       // compare targetspeed to anticipated airspeed