diff --git a/Aircraft/X15-set.xml b/Aircraft/X15-set.xml
index d868460be..8302ad943 100644
--- a/Aircraft/X15-set.xml
+++ b/Aircraft/X15-set.xml
@@ -14,7 +14,7 @@ October 23 2001 John Check, fgpanels@rockfish.net
 <!-- these are the three main components -->
  <sim>
   <flight-model>jsb</flight-model>
-  <aircraft>X15</aircraft>
+  <aero>X15</aero>
   <sound>false</sound>
   <panel>
    <path>Aircraft/X15/Panels/X15-panel.xml</path>
diff --git a/Aircraft/c172-ifr-set.xml b/Aircraft/c172-ifr-set.xml
index 4fd2a4c33..e7d351013 100644
--- a/Aircraft/c172-ifr-set.xml
+++ b/Aircraft/c172-ifr-set.xml
@@ -14,7 +14,7 @@ October 23 2001 John Check, fgpanels@rockfish.net
 <!-- c172 is default so basically we just need to specify the panel-->
  <sim>
   <flight-model>jsb</flight-model>
-  <aircraft>c172</aircraft>
+  <aero>c172</aero>
   <sound>true</sound>
   <panel>
    <path>Aircraft/c172/Panels/c172-ifr-panel.xml</path>
diff --git a/Aircraft/c172-larcsim-set.xml b/Aircraft/c172-larcsim-set.xml
index dd40884ac..17ff61c5c 100644
--- a/Aircraft/c172-larcsim-set.xml
+++ b/Aircraft/c172-larcsim-set.xml
@@ -14,7 +14,7 @@ October 23 2001 John Check, fgpanels@rockfish.net
 <!-- c172 is default so basically we just need to specify the fdm -->
  <sim>
   <flight-model>larcsim</flight-model>
-  <aircraft>c310</aircraft>
+  <aero>c310</aero>
   <sound>true</sound>
   <panel>
    <path>Aircraft/c310/c310-vfr-panel.xml</path>
diff --git a/Aircraft/c310-set.xml b/Aircraft/c310-set.xml
index 314939e87..ada854750 100644
--- a/Aircraft/c310-set.xml
+++ b/Aircraft/c310-set.xml
@@ -14,7 +14,7 @@ October 23 2001 John Check, fgpanels@rockfish.net
 <!-- these are the three main components -->
  <sim>
   <flight-model>jsb</flight-model>
-  <aircraft>c310</aircraft>
+  <aero>c310</aero>
   <sound>true</sound>
   <panel>
    <path>Aircraft/c310/c310-vfr-panel.xml</path>