diff --git a/ROMFS/px4fmu_common/init.d-posix/airframes/10041_sihsim_airplane b/ROMFS/px4fmu_common/init.d-posix/airframes/10041_sihsim_airplane
index 36a69b7714..c91e732a9e 100644
--- a/ROMFS/px4fmu_common/init.d-posix/airframes/10041_sihsim_airplane
+++ b/ROMFS/px4fmu_common/init.d-posix/airframes/10041_sihsim_airplane
@@ -33,18 +33,19 @@ param set-default SIH_KDV 0.2
 param set-default SIH_VEHICLE_TYPE 1 	# sih as fixed wing
 param set-default RWTO_TKOFF 1  # enable takeoff from runway (as opposed to launched)
 
-
 param set-default CA_AIRFRAME 1
-
 param set-default CA_ROTOR_COUNT 1
+param set-default CA_ROTOR0_PX 0.3
 
+# SIH for now hardcodes this configuration which we need to match in the airframe files.
 param set-default CA_SV_CS_COUNT 3
-param set-default CA_SV_CS0_TRQ_R -0.5
-param set-default CA_SV_CS0_TYPE 1
+param set-default CA_SV_CS0_TRQ_R 1
+param set-default CA_SV_CS0_TYPE 15  # single channel aileron
 param set-default CA_SV_CS1_TRQ_P 1
-param set-default CA_SV_CS1_TYPE 3
+param set-default CA_SV_CS1_TYPE 3  # elevator
 param set-default CA_SV_CS2_TRQ_Y 1
-param set-default CA_SV_CS2_TYPE 4
+param set-default CA_SV_CS2_TYPE 4  # rudder
+
 param set-default PWM_MAIN_FUNC1 201
 param set-default PWM_MAIN_FUNC2 202
 param set-default PWM_MAIN_FUNC3 203
diff --git a/ROMFS/px4fmu_common/init.d/airframes/1101_rc_plane_sih.hil b/ROMFS/px4fmu_common/init.d/airframes/1101_rc_plane_sih.hil
index 2bcfc14a2e..2b54650a07 100644
--- a/ROMFS/px4fmu_common/init.d/airframes/1101_rc_plane_sih.hil
+++ b/ROMFS/px4fmu_common/init.d/airframes/1101_rc_plane_sih.hil
@@ -17,15 +17,16 @@ param set UAVCAN_ENABLE 0
 param set-default CA_AIRFRAME 1
 param set-default CA_ROTOR_COUNT 1
 param set-default CA_ROTOR0_PX 0.3
-param set-default CA_SV_CS_COUNT 3
-param set-default CA_SV_CS0_TRQ_R -0.5
-param set-default CA_SV_CS0_TYPE 1
-param set-default CA_SV_CS1_TRQ_P 1
-param set-default CA_SV_CS1_TYPE 3
-param set-default CA_SV_CS2_TRQ_Y 1
-param set-default CA_SV_CS2_TYPE 4
 
-param set HIL_ACT_REV 1
+# SIH for now hardcodes this configuration which we need to match in the airframe files.
+param set-default CA_SV_CS_COUNT 3
+param set-default CA_SV_CS0_TRQ_R 1
+param set-default CA_SV_CS0_TYPE 15  # single channel aileron
+param set-default CA_SV_CS1_TRQ_P 1
+param set-default CA_SV_CS1_TYPE 3  # elevator
+param set-default CA_SV_CS2_TRQ_Y 1
+param set-default CA_SV_CS2_TYPE 4  # rudder
+
 param set HIL_ACT_FUNC1 201
 param set HIL_ACT_FUNC2 202
 param set HIL_ACT_FUNC3 203
diff --git a/ROMFS/px4fmu_common/init.d/airframes/1103_standard_vtol_sih.hil b/ROMFS/px4fmu_common/init.d/airframes/1103_standard_vtol_sih.hil
index c67cf2cc85..0309d3c0dc 100644
--- a/ROMFS/px4fmu_common/init.d/airframes/1103_standard_vtol_sih.hil
+++ b/ROMFS/px4fmu_common/init.d/airframes/1103_standard_vtol_sih.hil
@@ -41,20 +41,19 @@ param set-default CA_ROTOR3_PX -0.2
 param set-default CA_ROTOR3_PY 0.2
 param set-default CA_ROTOR3_KM -0.05
 
-
 param set-default CA_ROTOR4_PX -0.3
 param set-default CA_ROTOR4_KM 0.05
 param set-default CA_ROTOR4_AX 1
 param set-default CA_ROTOR4_AZ 0
 
+# SIH for now hardcodes this configuration which we need to match in the airframe files.
 param set-default CA_SV_CS_COUNT 3
-param set-default CA_SV_CS0_TRQ_R 0.5
-param set-default CA_SV_CS0_TYPE 2
+param set-default CA_SV_CS0_TRQ_R 1
+param set-default CA_SV_CS0_TYPE 15  # single channel aileron
 param set-default CA_SV_CS1_TRQ_P 1
-param set-default CA_SV_CS1_TYPE 3
+param set-default CA_SV_CS1_TYPE 3  # elevator
 param set-default CA_SV_CS2_TRQ_Y 1
-
-param set HIL_ACT_REV 32
+param set-default CA_SV_CS2_TYPE 4  # rudder
 
 param set-default FW_AIRSPD_MAX 12
 param set-default FW_AIRSPD_MIN 7
diff --git a/src/modules/simulation/simulator_sih/sih.cpp b/src/modules/simulation/simulator_sih/sih.cpp
index f90805dd66..07c24fe642 100644
--- a/src/modules/simulation/simulator_sih/sih.cpp
+++ b/src/modules/simulation/simulator_sih/sih.cpp
@@ -361,7 +361,7 @@ void Sih::generate_fw_aerodynamics(const float roll_cmd, const float pitch_cmd,
 	_wing_l.update_aero(v_B, _w_B, alt, roll_cmd * FLAP_MAX);
 	_wing_r.update_aero(v_B, _w_B, alt, -roll_cmd * FLAP_MAX);
 
-	_tailplane.update_aero(v_B, _w_B, alt, pitch_cmd * FLAP_MAX, _T_MAX * throttle_cmd);
+	_tailplane.update_aero(v_B, _w_B, alt, -pitch_cmd * FLAP_MAX, _T_MAX * throttle_cmd);
 	_fin.update_aero(v_B, _w_B, alt, yaw_cmd * FLAP_MAX, _T_MAX * throttle_cmd);
 	_fuselage.update_aero(v_B, _w_B, alt);