diff --git a/Aircraft/c172p/Models/c172p.xml b/Aircraft/c172p/Models/c172p.xml
index 1532a414b..678574c5d 100644
--- a/Aircraft/c172p/Models/c172p.xml
+++ b/Aircraft/c172p/Models/c172p.xml
@@ -2287,7 +2287,6 @@
    <type>rotate</type>
    <object-name>TopLink</object-name>
    <property>gear/gear[0]/compression-norm</property>
-   <factor>3.0</factor>
    <center>
      <x-m>-0.95412</x-m>
      <y-m>0.0</y-m>
@@ -2305,7 +2304,6 @@
    <type>rotate</type>
    <object-name>BottomLink</object-name>
    <property>gear/gear[0]/compression-norm</property>
-   <factor>3.0</factor>
    <center>
      <x-m>-1.02349</x-m>
      <y-m>0.0</y-m>
diff --git a/Aircraft/c172p/Systems/NAVandGSfilters.xml b/Aircraft/c172p/Systems/NAVandGSfilters.xml
index 1e8eb243c..cbb83b0e0 100644
--- a/Aircraft/c172p/Systems/NAVandGSfilters.xml
+++ b/Aircraft/c172p/Systems/NAVandGSfilters.xml
@@ -1,3 +1,4 @@
+<?xml version = '1.0' encoding = 'UTF-8' ?>
 <PropertyList>
 
   <filter>
diff --git a/Aircraft/c172p/c172p-set.xml b/Aircraft/c172p/c172p-set.xml
index 6f97e4762..6974923fc 100644
--- a/Aircraft/c172p/c172p-set.xml
+++ b/Aircraft/c172p/c172p-set.xml
@@ -68,11 +68,15 @@ Started October 23 2001 by John Check, fgpanels@rockfish.net
   </view>
 
   <systems>
+    <autopilot>
+      <name>autopilot helpers</name>
+      <path>Aircraft/Generic/generic-autopilot-helper.xml</path>
+    </autopilot>
     <autopilot>
       <path>Aircraft/c172p/Systems/KAP140.xml</path>
     </autopilot>
     <autopilot>
-      <name>NAV-GS-needle-Filters</name>
+      <name>FiltersOnly</name>
       <path>Aircraft/c172p/Systems/NAVandGSfilters.xml</path>
     </autopilot>
     <electrical>