diff --git a/libraries/SRV_Channel/SRV_Channel.cpp b/libraries/SRV_Channel/SRV_Channel.cpp
index 801a4ef933..fc98d9370e 100644
--- a/libraries/SRV_Channel/SRV_Channel.cpp
+++ b/libraries/SRV_Channel/SRV_Channel.cpp
@@ -64,7 +64,7 @@ const AP_Param::GroupInfo SRV_Channel::var_info[] = {
     // @Param: FUNCTION
     // @DisplayName: Servo output function
     // @Description: Function assigned to this servo. Seeing this to Disabled(0) will setup this output for control by auto missions or MAVLink servo set commands. any other value will enable the corresponding function
-    // @Values: 0:Disabled,1:RCPassThru,2:Flap,3:Flap_auto,4:Aileron,6:mount_pan,7:mount_tilt,8:mount_roll,9:mount_open,10:camera_trigger,11:release,12:mount2_pan,13:mount2_tilt,14:mount2_roll,15:mount2_open,16:DifferentialSpoiler1,17:DifferentialSpoiler2,18:AileronWithInput,19:Elevator,20:ElevatorWithInput,21:Rudder,24:Flaperon1,25:Flaperon2,26:GroundSteering,27:Parachute,28:EPM,29:LandingGear,30:EngineRunEnable,31:HeliRSC,32:HeliTailRSC,33:Motor1,34:Motor2,35:Motor3,36:Motor4,37:Motor5,38:Motor6,39:Motor7,40:Motor8,51:RCIN1,52:RCIN2,53:RCIN3,54:RCIN4,55:RCIN5,56:RCIN6,57:RCIN7,58:RCIN8,59:RCIN9,60:RCIN10,61:RCIN11,62:RCIN12,63:RCIN13,64:RCIN14,65:RCIN15,66:RCIN16,67:Ignition,68:Choke,69:Starter,70:Throttle,71:TrackerYaw,72:TrackerPitch
+    // @Values: 0:Disabled,1:RCPassThru,2:Flap,3:Flap_auto,4:Aileron,6:mount_pan,7:mount_tilt,8:mount_roll,9:mount_open,10:camera_trigger,11:release,12:mount2_pan,13:mount2_tilt,14:mount2_roll,15:mount2_open,16:DifferentialSpoiler1,17:DifferentialSpoiler2,18:AileronWithInput,19:Elevator,20:ElevatorWithInput,21:Rudder,24:Flaperon1,25:Flaperon2,26:GroundSteering,27:Parachute,28:EPM,29:LandingGear,30:EngineRunEnable,31:HeliRSC,32:HeliTailRSC,33:Motor1,34:Motor2,35:Motor3,36:Motor4,37:Motor5,38:Motor6,39:Motor7,40:Motor8,51:RCIN1,52:RCIN2,53:RCIN3,54:RCIN4,55:RCIN5,56:RCIN6,57:RCIN7,58:RCIN8,59:RCIN9,60:RCIN10,61:RCIN11,62:RCIN12,63:RCIN13,64:RCIN14,65:RCIN15,66:RCIN16,67:Ignition,68:Choke,69:Starter,70:Throttle,71:TrackerYaw,72:TrackerPitch,73:ThrottleLeft,74:ThrottleRight
     // @User: Standard
     AP_GROUPINFO("FUNCTION",  5, SRV_Channel, function, 0),
     
diff --git a/libraries/SRV_Channel/SRV_Channel.h b/libraries/SRV_Channel/SRV_Channel.h
index 67b2050afe..14321b3ca8 100644
--- a/libraries/SRV_Channel/SRV_Channel.h
+++ b/libraries/SRV_Channel/SRV_Channel.h
@@ -101,6 +101,8 @@ public:
         k_throttle              = 70,
         k_tracker_yaw           = 71,            ///< antennatracker yaw
         k_tracker_pitch         = 72,            ///< antennatracker pitch
+        k_throttleLeft          = 73,
+        k_throttleRight         = 74,
         k_nr_aux_servo_functions         ///< This must be the last enum value (only add new values _before_ this one)
     } Aux_servo_function_t;
 
diff --git a/libraries/SRV_Channel/SRV_Channel_aux.cpp b/libraries/SRV_Channel/SRV_Channel_aux.cpp
index cea6dcaa84..2fd974cf48 100644
--- a/libraries/SRV_Channel/SRV_Channel_aux.cpp
+++ b/libraries/SRV_Channel/SRV_Channel_aux.cpp
@@ -109,6 +109,8 @@ void SRV_Channel::aux_servo_function_setup(void)
         set_angle(4500);
         break;
     case k_throttle:
+    case k_throttleLeft:
+    case k_throttleRight:
         // fixed wing throttle
         set_range(100);
         break;