diff --git a/libraries/AP_Motors/AP_Motors6DOF.cpp b/libraries/AP_Motors/AP_Motors6DOF.cpp
index 386e7d1c70..ca82fdba11 100644
--- a/libraries/AP_Motors/AP_Motors6DOF.cpp
+++ b/libraries/AP_Motors/AP_Motors6DOF.cpp
@@ -176,6 +176,9 @@ void AP_Motors6DOF::setup_motors(motor_frame_class frame_class, motor_frame_type
         //break;
 
     case SUB_FRAME_SIMPLEROV_3:
+        add_motor_raw_6dof(AP_MOTORS_MOT_1,     0,              0,              -1.0f,          0,                  1.0f,               0,              1);
+        add_motor_raw_6dof(AP_MOTORS_MOT_2,     0,              0,              1.0f,           0,                  1.0f,               0,              2);
+        add_motor_raw_6dof(AP_MOTORS_MOT_3,     0,              0,              0,              -1.0f,              0,                  0,              3);
     case SUB_FRAME_SIMPLEROV_4:
     case SUB_FRAME_SIMPLEROV_5:
     default: