diff --git a/ROMFS/px4fmu_common/init.d/4070_aerofc b/ROMFS/px4fmu_common/init.d/4070_aerofc
index 5d277e878f..24aac2876c 100644
--- a/ROMFS/px4fmu_common/init.d/4070_aerofc
+++ b/ROMFS/px4fmu_common/init.d/4070_aerofc
@@ -7,6 +7,8 @@
 sh /etc/init.d/rc.mc_defaults
 
 tap_esc start -d /dev/ttyS0 -n 4
+usleep 300000
+
 set OUTPUT_MODE rcin
 set OUTPUT_DEV /dev/tap_esc
 set MIXER quad_x