diff --git a/conf/airframes/CDW/ChimuLisaFw.xml b/conf/airframes/CDW/ChimuLisaFw.xml
index baf7be8283..1d60fafb6e 100644
--- a/conf/airframes/CDW/ChimuLisaFw.xml
+++ b/conf/airframes/CDW/ChimuLisaFw.xml
@@ -61,9 +61,6 @@
 
     <define name="DEFAULT_CIRCLE_RADIUS" value="80."/>
 
-    <define name="GLIDE_AIRSPEED" value="10"/>
-    <define name="GLIDE_VSPEED" value="3."/>
-    <define name="GLIDE_PITCH" value="45" unit="deg"/>
   </section>
 
   <section name="VERTICAL CONTROL" prefix="V_CTL_">
diff --git a/conf/airframes/CDW/ChimuTinyFw.xml b/conf/airframes/CDW/ChimuTinyFw.xml
index 3831d918d2..91ee17a2ec 100644
--- a/conf/airframes/CDW/ChimuTinyFw.xml
+++ b/conf/airframes/CDW/ChimuTinyFw.xml
@@ -85,9 +85,6 @@
 
     <define name="DEFAULT_CIRCLE_RADIUS" value="80."/>
 
-    <define name="GLIDE_AIRSPEED" value="10"/>
-    <define name="GLIDE_VSPEED" value="3."/>
-    <define name="GLIDE_PITCH" value="45" unit="deg"/>
   </section>
 
   <section name="VERTICAL CONTROL" prefix="V_CTL_">
diff --git a/conf/airframes/CDW/ChimuTinyFwSpi.xml b/conf/airframes/CDW/ChimuTinyFwSpi.xml
index 43e48e551d..c7d162dce3 100644
--- a/conf/airframes/CDW/ChimuTinyFwSpi.xml
+++ b/conf/airframes/CDW/ChimuTinyFwSpi.xml
@@ -85,9 +85,6 @@
 
     <define name="DEFAULT_CIRCLE_RADIUS" value="80."/>
 
-    <define name="GLIDE_AIRSPEED" value="10"/>
-    <define name="GLIDE_VSPEED" value="3."/>
-    <define name="GLIDE_PITCH" value="45" unit="deg"/>
   </section>
 
   <section name="VERTICAL CONTROL" prefix="V_CTL_">
diff --git a/conf/airframes/ENAC/fixed-wing/obsolete/slayer2.xml b/conf/airframes/ENAC/fixed-wing/obsolete/slayer2.xml
index 46d368aea6..36436ae1f5 100644
--- a/conf/airframes/ENAC/fixed-wing/obsolete/slayer2.xml
+++ b/conf/airframes/ENAC/fixed-wing/obsolete/slayer2.xml
@@ -107,9 +107,6 @@
     <define name="UNLOCKED_HOME_MODE" value="TRUE"/>
     <define name="RC_LOST_MODE" value="PPRZ_MODE_AUTO2"/>
 
-    <define name="GLIDE_AIRSPEED" value="12.5"/>
-    <define name="GLIDE_VSPEED" value="2."/>
-    <define name="GLIDE_PITCH" value="45" unit="deg"/>
 
     <define name="TELEMETRY_MODE_AP" value="1"/>
   </section>
diff --git a/conf/airframes/PPZUAV/fixed-wing/ppzimu_tiny.xml b/conf/airframes/PPZUAV/fixed-wing/ppzimu_tiny.xml
index 4e10892cf5..4519a42554 100644
--- a/conf/airframes/PPZUAV/fixed-wing/ppzimu_tiny.xml
+++ b/conf/airframes/PPZUAV/fixed-wing/ppzimu_tiny.xml
@@ -122,9 +122,6 @@
 
     <define name="DEFAULT_CIRCLE_RADIUS" value="80."/>
 
-    <define name="GLIDE_AIRSPEED" value="10"/>
-    <define name="GLIDE_VSPEED" value="3."/>
-    <define name="GLIDE_PITCH" value="45" unit="deg"/>
   </section>
 
   <section name="VERTICAL CONTROL" prefix="V_CTL_">
diff --git a/conf/airframes/Poine/easy_glider1.xml b/conf/airframes/Poine/easy_glider1.xml
index 44791bc811..7dd3e67075 100644
--- a/conf/airframes/Poine/easy_glider1.xml
+++ b/conf/airframes/Poine/easy_glider1.xml
@@ -88,9 +88,6 @@
 
     <define name="DEFAULT_CIRCLE_RADIUS" value="80."/>
 
-    <define name="GLIDE_AIRSPEED" value="10"/>
-    <define name="GLIDE_VSPEED" value="3."/>
-    <define name="GLIDE_PITCH" value="45" unit="deg"/>
   </section>
 
   <section name="VERTICAL CONTROL" prefix="V_CTL_">
diff --git a/conf/airframes/TU_Delft/EasyStartPanTiltCHIMU_SPI.xml b/conf/airframes/TU_Delft/EasyStartPanTiltCHIMU_SPI.xml
index 96d2fce242..f830ed2ca7 100644
--- a/conf/airframes/TU_Delft/EasyStartPanTiltCHIMU_SPI.xml
+++ b/conf/airframes/TU_Delft/EasyStartPanTiltCHIMU_SPI.xml
@@ -86,9 +86,6 @@
 
     <define name="DEFAULT_CIRCLE_RADIUS" value="80."/>
 
-    <define name="GLIDE_AIRSPEED" value="10"/>
-    <define name="GLIDE_VSPEED" value="3."/>
-    <define name="GLIDE_PITCH" value="45" unit="deg"/>
   </section>
 
   <section name="VERTICAL CONTROL" prefix="V_CTL_">
diff --git a/conf/airframes/TU_Delft/MicrojetBR.xml b/conf/airframes/TU_Delft/MicrojetBR.xml
index ffafe387ba..5386260657 100644
--- a/conf/airframes/TU_Delft/MicrojetBR.xml
+++ b/conf/airframes/TU_Delft/MicrojetBR.xml
@@ -93,9 +93,6 @@
 
     <define name="DEFAULT_CIRCLE_RADIUS" value="80."/>
 
-    <define name="GLIDE_AIRSPEED" value="10"/>
-    <define name="GLIDE_VSPEED" value="3."/>
-    <define name="GLIDE_PITCH" value="45" unit="deg"/>
 
 
     <define name="LIGHT_LED_1" value="3"/>
diff --git a/conf/airframes/TU_Delft/MicrojetBRimu.xml b/conf/airframes/TU_Delft/MicrojetBRimu.xml
index 681291c9d6..9b5d1e95c1 100644
--- a/conf/airframes/TU_Delft/MicrojetBRimu.xml
+++ b/conf/airframes/TU_Delft/MicrojetBRimu.xml
@@ -128,9 +128,6 @@
 
     <define name="DEFAULT_CIRCLE_RADIUS" value="80."/>
 
-    <define name="GLIDE_AIRSPEED" value="10"/>
-    <define name="GLIDE_VSPEED" value="3."/>
-    <define name="GLIDE_PITCH" value="45" unit="deg"/>
 
 
     <define name="LIGHT_LED_1" value="3"/>
diff --git a/conf/airframes/TU_Delft/MicrojetCDW.xml b/conf/airframes/TU_Delft/MicrojetCDW.xml
index a778aeb5ff..a68cf86374 100644
--- a/conf/airframes/TU_Delft/MicrojetCDW.xml
+++ b/conf/airframes/TU_Delft/MicrojetCDW.xml
@@ -123,9 +123,6 @@
 
     <define name="DEFAULT_CIRCLE_RADIUS" value="75."/>
 
-    <define name="GLIDE_AIRSPEED" value="10"/>
-    <define name="GLIDE_VSPEED" value="3."/>
-    <define name="GLIDE_PITCH" value="0." unit="deg"/>
   </section>
 
   <section name="VERTICAL CONTROL" prefix="V_CTL_">
diff --git a/conf/airframes/TU_Delft/Trip50A.xml b/conf/airframes/TU_Delft/Trip50A.xml
index 0666e4fb0b..5257ccd647 100644
--- a/conf/airframes/TU_Delft/Trip50A.xml
+++ b/conf/airframes/TU_Delft/Trip50A.xml
@@ -105,9 +105,6 @@
     <define name="NO_XBEE_API_INIT" value="TRUE"/>  <!-- uncommant after programed-->
     <define name="ALT_KALMAN_ENABLED" value="TRUE"/>
     <define name="DEFAULT_CIRCLE_RADIUS" value="70."/>
-    <define name="GLIDE_AIRSPEED" value="10"/>
-    <define name="GLIDE_VSPEED" value="3."/>
-    <define name="GLIDE_PITCH" value="5" unit="deg"/>
 
   </section>
 
diff --git a/conf/airframes/TU_Delft/skywalker.xml b/conf/airframes/TU_Delft/skywalker.xml
index 66eec6c4eb..a8af9e6327 100644
--- a/conf/airframes/TU_Delft/skywalker.xml
+++ b/conf/airframes/TU_Delft/skywalker.xml
@@ -117,9 +117,6 @@
 
     <define name="DEFAULT_CIRCLE_RADIUS" value="80."/>
 
-    <define name="GLIDE_AIRSPEED" value="10"/>
-    <define name="GLIDE_VSPEED" value="3."/>
-    <define name="GLIDE_PITCH" value="45" unit="deg"/>
 
     <define name="COMMAND_ROLL_TRIM" value="-2300" />
     <define name="COMMAND_PITCH_TRIM" value="1800" />
diff --git a/conf/airframes/TU_Delft/skywalkerfiber.xml b/conf/airframes/TU_Delft/skywalkerfiber.xml
index a962c1f226..65360d82fa 100644
--- a/conf/airframes/TU_Delft/skywalkerfiber.xml
+++ b/conf/airframes/TU_Delft/skywalkerfiber.xml
@@ -245,9 +245,6 @@
     <define name="DEFAULT_CIRCLE_RADIUS" value="80."/>
 
 <!-- The Glide definitions are used for calculating the touch down point during auto landing -->
-    <define name="GLIDE_AIRSPEED" value="10"/>
-    <define name="GLIDE_VSPEED" value="3."/>
-    <define name="GLIDE_PITCH" value="45" unit="deg"/>
   </section>
 
 <!-- ******************* VERTICAL CONTROL ********************************** -->
diff --git a/conf/airframes/easy_glider_example.xml b/conf/airframes/easy_glider_example.xml
index 9bbb174eab..8a5221f037 100644
--- a/conf/airframes/easy_glider_example.xml
+++ b/conf/airframes/easy_glider_example.xml
@@ -81,9 +81,6 @@
 
     <define name="DEFAULT_CIRCLE_RADIUS" value="80."/>
 
-    <define name="GLIDE_AIRSPEED" value="10"/>
-    <define name="GLIDE_VSPEED" value="3."/>
-    <define name="GLIDE_PITCH" value="45" unit="deg"/>
   </section>
 
   <section name="VERTICAL CONTROL" prefix="V_CTL_">
diff --git a/conf/airframes/flixr_discovery.xml b/conf/airframes/flixr_discovery.xml
index 67f58b3f8e..fff06ea8c0 100644
--- a/conf/airframes/flixr_discovery.xml
+++ b/conf/airframes/flixr_discovery.xml
@@ -230,9 +230,6 @@ http://paparazzi.enac.fr/w/index.php?title=Theory_of_Operation
 
     <!-- The Glide definitions are used for calculating the touch down point during auto landing -->
     <!--
-    <define name="GLIDE_AIRSPEED" value="10."/>
-    <define name="GLIDE_VSPEED" value="3."/>
-    <define name="GLIDE_PITCH" value="10." unit="deg"/>
     -->
   </section>
 
diff --git a/conf/airframes/microjet_example.xml b/conf/airframes/microjet_example.xml
index fc8249b7c7..b5071b38d2 100644
--- a/conf/airframes/microjet_example.xml
+++ b/conf/airframes/microjet_example.xml
@@ -96,9 +96,6 @@
 
     <define name="DEFAULT_CIRCLE_RADIUS" value="80."/>
 
-    <define name="GLIDE_AIRSPEED" value="10"/>
-    <define name="GLIDE_VSPEED" value="3."/>
-    <define name="GLIDE_PITCH" value="45" unit="deg"/>
   </section>
 
   <section name="VERTICAL CONTROL" prefix="V_CTL_">
diff --git a/conf/airframes/obsolete/hitl_usb.xml b/conf/airframes/obsolete/hitl_usb.xml
index 653b66330c..9afeb0c653 100644
--- a/conf/airframes/obsolete/hitl_usb.xml
+++ b/conf/airframes/obsolete/hitl_usb.xml
@@ -40,9 +40,6 @@
 
 	<define name="DEFAULT_CIRCLE_RADIUS" value="80."/>
 
-	<define name="GLIDE_AIRSPEED" value="10"/>
-	<define name="GLIDE_VSPEED" value="3."/>
-	<define name="GLIDE_PITCH" value="45" unit="deg"/>
   </section>
 
   <section name="VERTICAL CONTROL" prefix="V_CTL_">
diff --git a/conf/airframes/obsolete/microjet6.xml b/conf/airframes/obsolete/microjet6.xml
index 71f9184796..258297a049 100644
--- a/conf/airframes/obsolete/microjet6.xml
+++ b/conf/airframes/obsolete/microjet6.xml
@@ -99,9 +99,6 @@
 
     <define name="DEFAULT_CIRCLE_RADIUS" value="80."/>
 
-    <define name="GLIDE_AIRSPEED" value="10"/>
-    <define name="GLIDE_VSPEED" value="3."/>
-    <define name="GLIDE_PITCH" value="45" unit="deg"/>
   </section>
 
   <section name="VERTICAL CONTROL" prefix="V_CTL_">
diff --git a/conf/airframes/obsolete/microjetI.xml b/conf/airframes/obsolete/microjetI.xml
index 1be67762ec..fdad26666d 100644
--- a/conf/airframes/obsolete/microjetI.xml
+++ b/conf/airframes/obsolete/microjetI.xml
@@ -96,9 +96,6 @@
 
     <define name="DEFAULT_CIRCLE_RADIUS" value="80."/>
 
-    <define name="GLIDE_AIRSPEED" value="10"/>
-    <define name="GLIDE_VSPEED" value="3."/>
-    <define name="GLIDE_PITCH" value="45" unit="deg"/>
   </section>
 
   <section name="external leds">
diff --git a/conf/airframes/obsolete/microjetII.xml b/conf/airframes/obsolete/microjetII.xml
index 913e68d99b..eff75bb8f6 100644
--- a/conf/airframes/obsolete/microjetII.xml
+++ b/conf/airframes/obsolete/microjetII.xml
@@ -97,9 +97,6 @@
 
     <define name="DEFAULT_CIRCLE_RADIUS" value="80."/>
 
-    <define name="GLIDE_AIRSPEED" value="10"/>
-    <define name="GLIDE_VSPEED" value="3."/>
-    <define name="GLIDE_PITCH" value="45" unit="deg"/>
   </section>
 
   <section name="external leds">
diff --git a/conf/airframes/obsolete/microjetIII.xml b/conf/airframes/obsolete/microjetIII.xml
index 4697f6e2cc..7540dfbd21 100644
--- a/conf/airframes/obsolete/microjetIII.xml
+++ b/conf/airframes/obsolete/microjetIII.xml
@@ -97,9 +97,6 @@
 
     <define name="DEFAULT_CIRCLE_RADIUS" value="80."/>
 
-    <define name="GLIDE_AIRSPEED" value="10"/>
-    <define name="GLIDE_VSPEED" value="3."/>
-    <define name="GLIDE_PITCH" value="45" unit="deg"/>
   </section>
 
   <section name="VERTICAL CONTROL" prefix="V_CTL_">
diff --git a/conf/airframes/obsolete/spirit.xml b/conf/airframes/obsolete/spirit.xml
index ed3b0b5b42..5be4ba698d 100644
--- a/conf/airframes/obsolete/spirit.xml
+++ b/conf/airframes/obsolete/spirit.xml
@@ -106,9 +106,6 @@
 
     <define name="DEFAULT_CIRCLE_RADIUS" value="80."/>
 
-    <define name="GLIDE_AIRSPEED" value="10"/>
-    <define name="GLIDE_VSPEED" value="3."/>
-    <define name="GLIDE_PITCH" value="45" unit="deg"/>
   </section>
 
   <section name="VERTICAL CONTROL" prefix="V_CTL_">
diff --git a/conf/airframes/obsolete/spirit_proto.xml b/conf/airframes/obsolete/spirit_proto.xml
index 108e8b940f..386cfb4246 100644
--- a/conf/airframes/obsolete/spirit_proto.xml
+++ b/conf/airframes/obsolete/spirit_proto.xml
@@ -95,9 +95,6 @@
 
     <define name="DEFAULT_CIRCLE_RADIUS" value="80."/>
 
-    <define name="GLIDE_AIRSPEED" value="10"/>
-    <define name="GLIDE_VSPEED" value="3."/>
-    <define name="GLIDE_PITCH" value="45" unit="deg"/>
   </section>
 
   <section name="VERTICAL CONTROL" prefix="V_CTL_">
diff --git a/conf/airframes/obsolete/storm1.xml b/conf/airframes/obsolete/storm1.xml
index aa4eb82ea4..ffacf6b750 100644
--- a/conf/airframes/obsolete/storm1.xml
+++ b/conf/airframes/obsolete/storm1.xml
@@ -122,9 +122,6 @@
     <define name="TRIGGER_DELAY" value="1."/>
     <define name="DEFAULT_CIRCLE_RADIUS" value="80."/>
 
-    <define name="GLIDE_AIRSPEED" value="12.5"/>
-    <define name="GLIDE_VSPEED" value="2."/>
-    <define name="GLIDE_PITCH" value="45" unit="deg"/>
 
   </section>
 
diff --git a/conf/airframes/obsolete/tiny_hitl.xml b/conf/airframes/obsolete/tiny_hitl.xml
index b784c66a5f..d0b45b2ffc 100644
--- a/conf/airframes/obsolete/tiny_hitl.xml
+++ b/conf/airframes/obsolete/tiny_hitl.xml
@@ -91,9 +91,6 @@
 
     <define name="DEFAULT_CIRCLE_RADIUS" value="80."/>
 
-    <define name="GLIDE_AIRSPEED" value="10"/>
-    <define name="GLIDE_VSPEED" value="3."/>
-    <define name="GLIDE_PITCH" value="45" unit="deg"/>
   </section>
 
   <section name="VERTICAL CONTROL" prefix="V_CTL_">