diff --git a/Aircraft-yasim/X15set.xml b/Aircraft-yasim/X15set.xml
deleted file mode 100644
index 27f163a1a..000000000
--- a/Aircraft-yasim/X15set.xml
+++ /dev/null
@@ -1,34 +0,0 @@
-<?xml version="1.0"?>
-<!--
-************************************************************************
-X15 simulation config. This files ties together all the components
-used by FGFS to represent the X15. Components include the flight data 
-model, instrument panel, and external 3D model.
-3D models can be downloaded from http://home.t-online.de/home/Wolfram.Kuss/
-
-October 23 2001 John Check, fgpanels@rockfish.net
-************************************************************************
--->
-
-<PropertyList>
-<!-- these are the three main components -->
- <sim>
-  <flight-model>jsb</flight-model>
-  <aircraft>X15</aircraft>
-  <sound>false</sound>
-  <panel>
-   <path>Aircraft/X15/Panels/X15-panel.xml</path>
-  </panel>
-  <!-- gear up -->
-  <model>
-   <path>Aircraft/X15/Models/X15_flight.ac</path>
-  </model> 
-  <!-- gear down -->
-  <model_2>
-   <path>Aircraft/X15/Models/X15_landing.ac</path>
-  </model_2> 
- </sim>
-  
-</PropertyList>
-
-