diff --git a/Aircraft/ufo/engine.wav b/Aircraft/ufo/engine.wav
new file mode 100644
index 000000000..b4cd3c135
Binary files /dev/null and b/Aircraft/ufo/engine.wav differ
diff --git a/Aircraft/ufo/ufo-sound.xml b/Aircraft/ufo/ufo-sound.xml
index e942ef0e4..49183a1cc 100644
--- a/Aircraft/ufo/ufo-sound.xml
+++ b/Aircraft/ufo/ufo-sound.xml
@@ -23,6 +23,18 @@
   </engine>
 -->
 
+  <engine>
+   <name>engine</name>
+   <mode>looped</mode>
+   <path>Aircraft/ufo/engine.wav</path>
+   <property>/velocities/airspeed-kt</property>
+   <pitch>
+    <property>/velocities/airspeed-kt</property>
+    <factor>0.00005</factor>
+    <offset>3.0</offset>
+   </pitch>
+  </engine>
+
   <wind>
    <name>wind</name>
    <mode>looped</mode>