diff --git a/ROMFS/px4fmu_common/init.d/airframes/3000_generic_wing b/ROMFS/px4fmu_common/init.d/airframes/3000_generic_wing
index 5d2278e7d37b5f426c24a4e2400f4081516ffcd7..e9bfab93c99f9750869a720e9bd72113efabdef5 100644
--- a/ROMFS/px4fmu_common/init.d/airframes/3000_generic_wing
+++ b/ROMFS/px4fmu_common/init.d/airframes/3000_generic_wing
@@ -5,6 +5,14 @@
 # @type Flying Wing
 # @class Plane
 #
+# @output MAIN1 left aileron
+# @output MAIN2 right aileron
+# @output MAIN4 throttle
+#
+# @output AUX1 feed-through of RC AUX1 channel
+# @output AUX2 feed-through of RC AUX2 channel
+# @output AUX3 feed-through of RC AUX3 channel
+#
 # @maintainer
 #
 
diff --git a/ROMFS/px4fmu_common/init.d/airframes/3034_fx79 b/ROMFS/px4fmu_common/init.d/airframes/3034_fx79
index 92f2df33ab31f6e5df304bd6417d8f2953bdabd0..37bc3f87f148499b0b0aeebb6d51605293388fc7 100644
--- a/ROMFS/px4fmu_common/init.d/airframes/3034_fx79
+++ b/ROMFS/px4fmu_common/init.d/airframes/3034_fx79
@@ -9,6 +9,10 @@
 # @output MAIN2 left aileron
 # @output MAIN4 throttle
 #
+# @output AUX1 feed-through of RC AUX1 channel
+# @output AUX2 feed-through of RC AUX2 channel
+# @output AUX3 feed-through of RC AUX3 channel
+#
 # @maintainer Simon Wilks <simon@uaventure.com>
 #
 
diff --git a/ROMFS/px4fmu_common/init.d/airframes/3035_viper b/ROMFS/px4fmu_common/init.d/airframes/3035_viper
index dd3d397e0005be5a35d00ed19d48f35ec71f31ba..1552a5b5b675011959c4460f9dee1b39760456b0 100644
--- a/ROMFS/px4fmu_common/init.d/airframes/3035_viper
+++ b/ROMFS/px4fmu_common/init.d/airframes/3035_viper
@@ -5,6 +5,14 @@
 # @type Flying Wing
 # @class Plane
 #
+# @output MAIN1 left aileron
+# @output MAIN2 right aileron
+# @output MAIN4 throttle
+#
+# @output AUX1 feed-through of RC AUX1 channel
+# @output AUX2 feed-through of RC AUX2 channel
+# @output AUX3 feed-through of RC AUX3 channel
+#
 # @maintainer Simon Wilks <simon@uaventure.com>
 #
 
diff --git a/ROMFS/px4fmu_common/init.d/airframes/3100_tbs_caipirinha b/ROMFS/px4fmu_common/init.d/airframes/3100_tbs_caipirinha
index 6c5386e356fafd48539d80ba262f56bcf6d83cc7..e16bcb2a11b683f65d6ea15e7b2978092c81d47d 100644
--- a/ROMFS/px4fmu_common/init.d/airframes/3100_tbs_caipirinha
+++ b/ROMFS/px4fmu_common/init.d/airframes/3100_tbs_caipirinha
@@ -5,6 +5,14 @@
 # @type Flying Wing
 # @class Plane
 #
+# @output MAIN1 left aileron
+# @output MAIN2 right aileron
+# @output MAIN4 throttle
+#
+# @output AUX1 feed-through of RC AUX1 channel
+# @output AUX2 feed-through of RC AUX2 channel
+# @output AUX3 feed-through of RC AUX3 channel
+#
 # @maintainer Lorenz Meier <lorenz@px4.io>
 #