diff --git a/Tools/autotest/models/plane-3d.parm b/Tools/autotest/models/plane-3d.parm
index c09ee0b5f9..c2d467b347 100644
--- a/Tools/autotest/models/plane-3d.parm
+++ b/Tools/autotest/models/plane-3d.parm
@@ -33,5 +33,5 @@ ARSPD_FBW_MAX    30
 LIM_ROLL_CD      7000
 # setup for scripting
 SCR_ENABLE       1
-SCR_HEAP_SIZE    300000
-SCR_VM_I_COUNT   100000
+SCR_HEAP_SIZE    350000
+SCR_VM_I_COUNT   400000