diff --git a/conf/autopilot/subsystems/fixedwing/airspeed_ets.makefile b/conf/autopilot/subsystems/fixedwing/airspeed_ets.makefile
index f1f46a867e..ff4bf6bc87 100644
--- a/conf/autopilot/subsystems/fixedwing/airspeed_ets.makefile
+++ b/conf/autopilot/subsystems/fixedwing/airspeed_ets.makefile
@@ -1,6 +1,6 @@
 # EagleTree sensors (altimeter and airspeed)
-ap.CFLAGS += -DUSE_AIRSPEED_ETS -DUSE_AIRSPEED -DUSE_BARO_ETS -DUSE_I2C0
-ap.srcs += airspeed.c airspeed_ets.c baro_ets.c i2c.c $(SRC_ARCH)/i2c_hw.c
+ap.CFLAGS += -DUSE_AIRSPEED_ETS -DUSE_AIRSPEED -DUSE_I2C0
+ap.srcs += airspeed.c airspeed_ets.c i2c.c $(SRC_ARCH)/i2c_hw.c
 
-sim.CFLAGS += -DUSE_AIRSPEED_ETS -DUSE_AIRSPEED -DUSE_BARO_ETS -DUSE_I2C0
-sim.srcs += airspeed.c airspeed_ets.c baro_ets.c i2c.c $(SRC_ARCH)/i2c_hw.c
+sim.CFLAGS += -DUSE_AIRSPEED_ETS -DUSE_AIRSPEED -DUSE_I2C0
+sim.srcs += airspeed.c airspeed_ets.c i2c.c $(SRC_ARCH)/i2c_hw.c
diff --git a/conf/autopilot/subsystems/fixedwing/baro_ets.makefile b/conf/autopilot/subsystems/fixedwing/baro_ets.makefile
new file mode 100644
index 0000000000..ec190d5b2d
--- /dev/null
+++ b/conf/autopilot/subsystems/fixedwing/baro_ets.makefile
@@ -0,0 +1,6 @@
+# EagleTree sensors (altimeter and airspeed)
+ap.CFLAGS += -DUSE_BARO_ETS -DUSE_I2C0
+ap.srcs += baro_ets.c i2c.c $(SRC_ARCH)/i2c_hw.c
+
+sim.CFLAGS += -DUSE_BARO_ETS -DUSE_I2C0
+sim.srcs += baro_ets.c i2c.c $(SRC_ARCH)/i2c_hw.c
diff --git a/conf/autopilot/subsystems/fixedwing/navigation_bomb.makefile b/conf/autopilot/subsystems/fixedwing/navigation_bomb.makefile
new file mode 100644
index 0000000000..758ef836d0
--- /dev/null
+++ b/conf/autopilot/subsystems/fixedwing/navigation_bomb.makefile
@@ -0,0 +1,7 @@
+# standard and extra fixed wing navigation
+
+
+#add these to all targets
+
+$(TARGET).srcs += $(SRC_FIXEDWING)/bomb.c
+