diff --git a/Systems/a320-aerodynamics.xml b/Systems/a320-aerodynamics.xml
index 61d7f81f..19a49b03 100644
--- a/Systems/a320-aerodynamics.xml
+++ b/Systems/a320-aerodynamics.xml
@@ -285,7 +285,7 @@
 				<property>metrics/Sw-sqft</property>
 				<property>metrics/bw-ft</property>
 				<property>fcs/roll-pos-rad</property>
-				<value>0.10</value>
+				<value>0.08</value>
 			</product>
 		</function>
 
diff --git a/revision.txt b/revision.txt
index b6e26c8b..f0d50fd5 100644
--- a/revision.txt
+++ b/revision.txt
@@ -1 +1 @@
-4030
\ No newline at end of file
+4031
\ No newline at end of file