diff --git a/ArduSub/AP_Arming_Sub.cpp b/ArduSub/AP_Arming_Sub.cpp
index d566a000e4..c623be8b84 100644
--- a/ArduSub/AP_Arming_Sub.cpp
+++ b/ArduSub/AP_Arming_Sub.cpp
@@ -6,7 +6,7 @@ enum HomeState AP_Arming_Sub::home_status() const
     return sub.ap.home_state;
 }
 
-bool AP_Arming_Sub::rc_check(bool display_failure)
+bool AP_Arming_Sub::rc_calibration_checks(bool display_failure)
 {
     const RC_Channel *channels[] = {
         sub.channel_roll,
@@ -23,7 +23,7 @@ bool AP_Arming_Sub::pre_arm_checks(bool report)
         return true;
     }
 
-    return AP_Arming::pre_arm_checks(report) & rc_check(report) & ins_checks(report);
+    return AP_Arming::pre_arm_checks(report) & ins_checks(report);
 }
 
 bool AP_Arming_Sub::ins_checks(bool report)
diff --git a/ArduSub/AP_Arming_Sub.h b/ArduSub/AP_Arming_Sub.h
index f4ebf4f74b..1454862cc9 100644
--- a/ArduSub/AP_Arming_Sub.h
+++ b/ArduSub/AP_Arming_Sub.h
@@ -14,7 +14,7 @@ public:
     AP_Arming_Sub(const AP_Arming_Sub &other) = delete;
     AP_Arming_Sub &operator=(const AP_Baro&) = delete;
 
-    bool rc_check(bool report=true);
+    bool rc_calibration_checks(bool report=true) override;
     bool pre_arm_checks(bool report) override;
 
 protected:
diff --git a/ArduSub/radio.cpp b/ArduSub/radio.cpp
index 88220604af..841276347f 100644
--- a/ArduSub/radio.cpp
+++ b/ArduSub/radio.cpp
@@ -54,7 +54,7 @@ void Sub::init_rc_out()
     motors.set_throttle_range(channel_throttle->get_radio_min(), channel_throttle->get_radio_max());
 
     // enable output to motors
-    if (arming.rc_check()) {
+    if (arming.rc_calibration_checks(true)) {
         enable_motor_output();
     }