diff --git a/libraries/AP_HAL/RCOutput.h b/libraries/AP_HAL/RCOutput.h
index 242582ba25..34dbbcc828 100644
--- a/libraries/AP_HAL/RCOutput.h
+++ b/libraries/AP_HAL/RCOutput.h
@@ -110,6 +110,11 @@ public:
      */
     virtual void     set_esc_scaling(uint16_t min_pwm, uint16_t max_pwm) {}
 
+    /*
+      return ESC scaling value from set_esc_scaling()
+     */
+    virtual bool     get_esc_scaling(uint16_t &min_pwm, uint16_t &max_pwm) { return false; }
+    
     /*
       returns the pwm value scaled to [-1;1] regrading to set_esc_scaling ranges range without constraints.
      */