diff --git a/Tools/autotest/helicopter.py b/Tools/autotest/helicopter.py
index 8c6cb0eeffeec1..f599e867292ec6 100644
--- a/Tools/autotest/helicopter.py
+++ b/Tools/autotest/helicopter.py
@@ -882,7 +882,7 @@ def AutoTune(self):
         self.set_parameters({
             "AUTOTUNE_AXES": 2,
             "AUTOTUNE_SEQ": 2,
-            "AUTOTUNE_GN_MAX": 2.0,
+            "AUTOTUNE_GN_MAX": 1.8,
             })
 
         # Conduct testing from althold
@@ -902,7 +902,7 @@ def AutoTune(self):
         self.set_parameters({
             "AUTOTUNE_AXES": 1,
             "AUTOTUNE_SEQ": 2,
-            "AUTOTUNE_GN_MAX": 1.8,
+            "AUTOTUNE_GN_MAX": 1.6,
             })
 
         # Conduct testing from althold
@@ -922,7 +922,7 @@ def AutoTune(self):
         self.set_parameters({
             "AUTOTUNE_AXES": 3,
             "AUTOTUNE_SEQ": 4,
-            "AUTOTUNE_GN_MAX": 2.0,
+            "AUTOTUNE_GN_MAX": 1.6,
             })
 
         # Conduct testing from althold