diff --git a/ROMFS/px4fmu_common/init.d/13002_firefly6 b/ROMFS/px4fmu_common/init.d/13002_firefly6
index b054c81665..35f5f33b30 100644
--- a/ROMFS/px4fmu_common/init.d/13002_firefly6
+++ b/ROMFS/px4fmu_common/init.d/13002_firefly6
@@ -38,11 +38,6 @@ set PWM_OUT 12345678
 set PWM_RATE 400
 
 set MIXER_AUX firefly6
-set PWM_AUX_RATE 50
-set PWM_AUX_OUT 1234
-set PWM_AUX_DISARMED 1000
-set PWM_AUX_MIN 1000
-set PWM_AUX_MAX 2000
 
 set MAV_TYPE 21
 
diff --git a/ROMFS/px4fmu_common/init.d/13006_vtol_standard_delta b/ROMFS/px4fmu_common/init.d/13006_vtol_standard_delta
index 60cf7e99c9..9079d8709c 100644
--- a/ROMFS/px4fmu_common/init.d/13006_vtol_standard_delta
+++ b/ROMFS/px4fmu_common/init.d/13006_vtol_standard_delta
@@ -38,11 +38,8 @@ set PWM_OUT 1234
 set PWM_RATE 400
 
 set MIXER_AUX vtol_delta
-set PWM_AUX_RATE 50
-set PWM_AUX_OUT 1234
-set PWM_AUX_DISARMED 1000
-set PWM_AUX_MIN 1000
-set PWM_AUX_MAX 2000
+set PWM_ACHDIS 3
+set PWM_AUX_DISARMED 950
 
 set MAV_TYPE 22
 
diff --git a/ROMFS/px4fmu_common/init.d/13007_vtol_AAVVT_quad b/ROMFS/px4fmu_common/init.d/13007_vtol_AAVVT_quad
index 51bade9f71..ec2b156bc5 100644
--- a/ROMFS/px4fmu_common/init.d/13007_vtol_AAVVT_quad
+++ b/ROMFS/px4fmu_common/init.d/13007_vtol_AAVVT_quad
@@ -38,11 +38,8 @@ set PWM_OUT 1234
 set PWM_RATE 400
 
 set MIXER_AUX vtol_AAVVT
-set PWM_AUX_RATE 50
-set PWM_AUX_OUT 1234
-set PWM_AUX_DISARMED 1000
-set PWM_AUX_MIN 1000
-set PWM_AUX_MAX 2000
+set PWM_ACHDIS 5
+set PWM_AUX_DISARMED 950
 
 set MAV_TYPE 22
 
diff --git a/ROMFS/px4fmu_common/init.d/13008_QuadRanger b/ROMFS/px4fmu_common/init.d/13008_QuadRanger
index 0340bb7465..83f6ac6def 100644
--- a/ROMFS/px4fmu_common/init.d/13008_QuadRanger
+++ b/ROMFS/px4fmu_common/init.d/13008_QuadRanger
@@ -41,11 +41,8 @@ set PWM_OUT 1234
 set PWM_RATE 400
 
 set MIXER_AUX vtol_AAERT
-set PWM_AUX_RATE 50
-set PWM_AUX_OUT 1234
-set PWM_AUX_DISARMED 1000
-set PWM_AUX_MIN 1000
-set PWM_AUX_MAX 2000
+set PWM_ACHDIS 5
+set PWM_AUX_DISARMED 950
 
 set MAV_TYPE 22