diff --git a/Protocol/playback.xml b/Protocol/playback.xml
index d98f96278..ddf2cc34e 100644
--- a/Protocol/playback.xml
+++ b/Protocol/playback.xml
@@ -1,5 +1,12 @@
 <?xml version="1.0"?>
 
+<!--
+  Usage:
+  
+  Recording: fgfs --generic=file,out,20,flight.out,playback
+  Playback:  fgfs --generic=file,in,20,flight.out,playback --fdm=null
+ -->
+
 <PropertyList>
 
  <generic>
@@ -14,7 +21,7 @@
     <name>aileron</name>
     <type>float</type>
     <format>%f</format>
-    <node>/controls/flight/aileron</node>
+    <node>/controls/flight/aileron[0]</node>
    </chunk>
 
    <chunk>
@@ -55,22 +62,24 @@
    <chunk>
     <name>flaps</name>
     <type>float</type>
+    <format>%f</format>
     <node>/controls/flight/flaps</node>
    </chunk>
  
    <chunk>
     <name>slats</name>
     <type>float</type>
+    <format>%f</format>
     <node>/controls/flight/slats</node>
    </chunk>
  
    <chunk>
     <name>speedbrake</name>
     <type>float</type>
+    <format>%f</format>
     <node>/controls/flight/speedbrake</node>
    </chunk>
  
-
    <!-- Engines -->
    <chunk>
     <name>throttle</name>
@@ -88,34 +97,40 @@
    <chunk>
     <name>starter</name>
     <type>float</type>
+    <format>%f</format>
     <node>/controls/engines/engine[0]/starter</node>
    </chunk>
    <chunk>
     <name>starter</name>
     <type>float</type>
+    <format>%f</format>
     <node>/controls/engines/engine[1]/starter</node>
    </chunk>
 
    <chunk>
     <name>fuel-pump</name>
     <type>float</type>
+    <format>%f</format>
     <node>/controls/engines/engine[0]/fuel-pump</node>
    </chunk>
    <chunk>
     <name>fuel-pump</name>
     <type>float</type>
+    <format>%f</format>
     <node>/controls/engines/engine[1]/fuel-pump</node>
    </chunk>
 
    <chunk>
     <name>cutoff</name>
     <type>float</type>
+    <format>%f</format>
     <node>/controls/engines/engine[0]/cutoff</node>
    </chunk>
    <name>cutoff</name>
    <chunk>
     <name>cutoff</name>
     <type>float</type>
+    <format>%f</format>
     <node>/controls/engines/engine[1]/cutoff</node>
    </chunk>
 
@@ -148,22 +163,26 @@
    <chunk>
     <name>magnetos</name>
     <type>float</type>
+    <format>%f</format>
     <node>/controls/engines/engine[0]/magnetos</node>
    </chunk>
    <chunk>
     <name>magnetos</name>
     <type>float</type>
+    <format>%f</format>
     <node>/controls/engines/engine[1]/magnetos</node>
    </chunk>
 
    <chunk>
     <name>ignition</name>
     <type>float</type>
+    <format>%f</format>
     <node>/controls/engines/engine[0]/ignition</node>
    </chunk>
    <chunk>
     <name>ignition</name>
     <type>float</type>
+    <format>%f</format>
     <node>/controls/engines/engine[1]/ignition</node>
    </chunk>
 
@@ -172,18 +191,21 @@
    <chunk>
     <name>brake-left</name>
     <type>float</type>
+    <format>%f</format>
     <node>/controls/gear/brake-left</node>
    </chunk>
 
    <chunk>
     <name>brake-right</name>
     <type>float</type>
+    <format>%f</format>
     <node>/controls/gear/brake-right</node>
    </chunk>
 
    <chunk>
     <name>brake-parking</name>
     <type>float</type>
+    <format>%f</format>
     <node>/controls/gear/brake-parking</node>
    </chunk>
 
@@ -197,9 +219,45 @@
    <chunk>
     <name>gear-down</name>
     <type>float</type>
+    <format>%f</format>
     <node>/controls/gear/gear-down</node>
    </chunk>
 
+   <chunk>
+    <name>gear-position</name>
+    <type>float</type>
+    <format>%f</format>
+    <node>/gear/gear/position-norm</node>
+   </chunk>
+
+   <chunk>
+    <name>gear-position</name>
+    <type>float</type>
+    <format>%f</format>
+    <node>/gear/gear[1]/position-norm</node>
+   </chunk>
+
+   <chunk>
+    <name>gear-position</name>
+    <type>float</type>
+    <format>%f</format>
+    <node>/gear/gear[2]/position-norm</node>
+   </chunk>
+
+   <chunk>
+    <name>gear-position</name>
+    <type>float</type>
+    <format>%f</format>
+    <node>/gear/gear[3]/position-norm</node>
+   </chunk>
+
+   <chunk>
+    <name>gear-position</name>
+    <type>float</type>
+    <format>%f</format>
+    <node>/gear/gear[4]/position-norm</node>
+   </chunk>
+
    <!-- Hydraulics -->
    <chunk>
     <name>engine-pump</name>
@@ -330,6 +388,153 @@
     <node>/orientation/side-slip-deg</node>
    </chunk>
 
+   <!-- Velocities -->
+   <chunk>
+     <name>airspeed-kt</name>
+     <type>float</type>
+     <format>%f</format>
+     <node>/velocities/airspeed-kt</node>
+   </chunk>
+
+   <chunk>
+     <name>glideslope</name>
+     <type>float</type>
+     <format>%f</format>
+     <node>/velocities/glideslope</node>
+   </chunk>
+
+   <chunk>
+     <name>mach</name>
+     <type>float</type>
+     <format>%f</format>
+     <node>/velocities/mach</node>
+   </chunk>
+
+   <chunk>
+     <name>speed-down-fps</name>
+     <type>float</type>
+     <format>%f</format>
+     <node>/velocities/speed-down-fps</node>
+   </chunk>
+
+   <chunk>
+     <name>speed-east-fps</name>
+     <type>float</type>
+     <format>%f</format>
+     <node>/velocities/speed-east-fps</node>
+   </chunk>
+
+   <chunk>
+     <name>speed-north-fps</name>
+     <type>float</type>
+     <format>%f</format>
+     <node>/velocities/speed-north-fps</node>
+   </chunk>
+
+   <chunk>
+     <name>uBody-fps</name>
+     <type>float</type>
+     <format>%f</format>
+     <node>/velocities/uBody-fps</node>
+   </chunk>
+
+   <chunk>
+     <name>vBody-fps</name>
+     <type>float</type>
+     <format>%f</format>
+     <node>/velocities/vBody-fps</node>
+   </chunk>
+
+   <chunk>
+     <name>wBody-fps</name>
+     <type>float</type>
+     <format>%f</format>
+     <node>/velocities/wBody-fps</node>
+   </chunk>
+
+   <chunk>
+     <name>vertical-speed-fps</name>
+     <type>float</type>
+     <format>%f</format>
+     <node>/velocities/vertical-speed-fps</node>
+   </chunk>
+
+   <!-- Accelerations -->
+   <chunk>
+     <name>nlf</name>
+     <type>float</type>
+     <format>%f</format>
+     <node>/accelerations/nlf</node>
+   </chunk>
+   <chunk>
+     <name>ned-down-accel-fps_sec</name>
+     <type>float</type>
+     <format>%f</format>
+     <node>/accelerations/ned/down-accel-fps_sec</node>
+   </chunk>
+   <chunk>
+     <name>ned-east-accel-fps_sec</name>
+     <type>float</type>
+     <format>%f</format>
+     <node>/accelerations/ned/east-accel-fps_sec</node>
+   </chunk>
+   <chunk>
+     <name>ned-north-accel-fps_sec</name>
+     <type>float</type>
+     <format>%f</format>
+     <node>/accelerations/ned/north-accel-fps_sec</node>
+   </chunk>
+
+   <chunk>
+     <name>pilot-x-accel-fps_sec</name>
+     <type>float</type>
+     <format>%f</format>
+     <node>/accelerations/pilot/x-accel-fps_sec</node>
+   </chunk>
+   <chunk>
+     <name>pilot-y-accel-fps_sec</name>
+     <type>float</type>
+     <format>%f</format>
+     <node>/accelerations/pilot/y-accel-fps_sec</node>
+   </chunk>
+   <chunk>
+     <name>pilot-z-accel-fps_sec</name>
+     <type>float</type>
+     <format>%f</format>
+     <node>/accelerations/pilot/z-accel-fps_sec</node>
+   </chunk>
+
+   <!-- Surface Positions -->
+   <chunk>
+     <name>elevator-pos-norm</name>
+     <type>float</type>
+     <format>%f</format>
+     <node>/surface-positions/elevator-pos-norm[0]</node>
+   </chunk>
+   <chunk>
+     <name>flap-pos-norm</name>
+     <type>float</type>
+     <format>%f</format>
+     <node>/surface-positions/flap-pos-norm[0]</node>
+   </chunk>
+   <chunk>
+     <name>left-aileron-pos-norm</name>
+     <type>float</type>
+     <format>%f</format>
+     <node>/surface-positions/left-aileron-pos-norm[0]</node>
+   </chunk>
+   <chunk>
+     <name>right-aileron-pos-norm</name>
+     <type>float</type>
+     <format>%f</format>
+     <node>/surface-positions/right-aileron-pos-norm[0]</node>
+   </chunk>
+   <chunk>
+     <name>rudder-pos-norm</name>
+     <type>float</type>
+     <format>%f</format>
+     <node>/surface-positions/rudder-pos-norm[0]</node>
+   </chunk>
   </output>
 
   <input>
@@ -514,6 +719,41 @@
     <node>/controls/gear/gear-down</node>
    </chunk>
 
+   <chunk>
+    <name>gear-position</name>
+    <type>float</type>
+    <format>%f</format>
+    <node>/gear/gear/position-norm</node>
+   </chunk>
+
+   <chunk>
+    <name>gear-position</name>
+    <type>float</type>
+    <format>%f</format>
+    <node>/gear/gear[1]/position-norm</node>
+   </chunk>
+
+   <chunk>
+    <name>gear-position</name>
+    <type>float</type>
+    <format>%f</format>
+    <node>/gear/gear[2]/position-norm</node>
+   </chunk>
+
+   <chunk>
+    <name>gear-position</name>
+    <type>float</type>
+    <format>%f</format>
+    <node>/gear/gear[3]/position-norm</node>
+   </chunk>
+
+   <chunk>
+    <name>gear-position</name>
+    <type>float</type>
+    <format>%f</format>
+    <node>/gear/gear[4]/position-norm</node>
+   </chunk>
+
    <!-- Hydraulics -->
    <chunk>
     <name>engine-pump</name>
@@ -637,7 +877,132 @@
     <node>/orientation/side-slip-deg</node>
    </chunk>
 
-  </input>
+   <!-- Velocities -->
+   <chunk>
+     <name>airspeed-kt</name>
+     <type>float</type>
+     <node>/velocities/airspeed-kt</node>
+   </chunk>
+
+   <chunk>
+     <name>glideslope</name>
+     <type>float</type>
+     <node>/velocities/glideslope</node>
+   </chunk>
+
+   <chunk>
+     <name>mach</name>
+     <type>float</type>
+     <node>/velocities/mach</node>
+   </chunk>
+
+   <chunk>
+     <name>speed-down-fps</name>
+     <type>float</type>
+     <node>/velocities/speed-down-fps</node>
+   </chunk>
+
+   <chunk>
+     <name>speed-east-fps</name>
+     <type>float</type>
+     <node>/velocities/speed-east-fps</node>
+   </chunk>
+
+   <chunk>
+     <name>speed-north-fps</name>
+     <type>float</type>
+     <node>/velocities/speed-north-fps</node>
+   </chunk>
+
+   <chunk>
+     <name>uBody-fps</name>
+     <type>float</type>
+     <node>/velocities/uBody-fps</node>
+   </chunk>
+
+   <chunk>
+     <name>vBody-fps</name>
+     <type>float</type>
+     <node>/velocities/vBody-fps</node>
+   </chunk>
+
+   <chunk>
+     <name>wBody-fps</name>
+     <type>float</type>
+     <node>/velocities/wBody-fps</node>
+   </chunk>
+
+   <chunk>
+     <name>vertical-speed-fps</name>
+     <type>float</type>
+     <node>/velocities/vertical-speed-fps</node>
+   </chunk>
+
+   <!-- Accelerations -->
+   <chunk>
+     <name>nlf</name>
+     <type>float</type>
+     <node>/accelerations/nlf</node>
+   </chunk>
+   <chunk>
+     <name>ned-down-accel-fps_sec</name>
+     <type>float</type>
+     <node>/accelerations/ned/down-accel-fps_sec</node>
+   </chunk>
+   <chunk>
+     <name>ned-east-accel-fps_sec</name>
+     <type>float</type>
+     <node>/accelerations/ned/east-accel-fps_sec</node>
+   </chunk>
+   <chunk>
+     <name>ned-north-accel-fps_sec</name>
+     <type>float</type>
+     <node>/accelerations/ned/north-accel-fps_sec</node>
+   </chunk>
+
+   <chunk>
+     <name>pilot-x-accel-fps_sec</name>
+     <type>float</type>
+     <node>/accelerations/pilot/x-accel-fps_sec</node>
+   </chunk>
+   <chunk>
+     <name>pilot-y-accel-fps_sec</name>
+     <type>float</type>
+     <node>/accelerations/pilot/y-accel-fps_sec</node>
+   </chunk>
+   <chunk>
+     <name>pilot-z-accel-fps_sec</name>
+     <type>float</type>
+     <node>/accelerations/pilot/z-accel-fps_sec</node>
+   </chunk>
+
+   <!-- Surface Positions -->
+   <chunk>
+     <name>elevator-pos-norm</name>
+     <type>float</type>
+     <node>/surface-positions/elevator-pos-norm[0]</node>
+   </chunk>
+   <chunk>
+     <name>flap-pos-norm</name>
+     <type>float</type>
+     <node>/surface-positions/flap-pos-norm[0]</node>
+   </chunk>
+   <chunk>
+     <name>left-aileron-pos-norm</name>
+     <type>float</type>
+     <node>/surface-positions/left-aileron-pos-norm[0]</node>
+   </chunk>
+   <chunk>
+     <name>right-aileron-pos-norm</name>
+     <type>float</type>
+     <node>/surface-positions/right-aileron-pos-norm[0]</node>
+   </chunk>
+   <chunk>
+     <name>rudder-pos-norm</name>
+     <type>float</type>
+     <node>/surface-positions/rudder-pos-norm[0]</node>
+   </chunk> 
+ </input>
 
  </generic>