diff --git a/ArduCopter/Copter.h b/ArduCopter/Copter.h
index d88e707bf2..03626f3a82 100644
--- a/ArduCopter/Copter.h
+++ b/ArduCopter/Copter.h
@@ -1005,6 +1005,11 @@ private:
     AC_ZR_App zr_app;
 public:
     void failsafe_check();      // failsafe.cpp
+    
+    void zr_app_50hz();
+    void zr_app_10hz();
+    void zr_app_1hz();
+
 };
 
 extern Copter copter;
diff --git a/ArduCopter/UserCode.cpp b/ArduCopter/UserCode.cpp
index 1fc9824fdc..80d9b5c5c8 100644
--- a/ArduCopter/UserCode.cpp
+++ b/ArduCopter/UserCode.cpp
@@ -19,6 +19,7 @@ void Copter::userhook_FastLoop()
 void Copter::userhook_50Hz()
 {
     // put your 50Hz code here
+    zr_app_50hz();
 }
 #endif
 
@@ -26,6 +27,7 @@ void Copter::userhook_50Hz()
 void Copter::userhook_MediumLoop()
 {
     // put your 10Hz code here
+    zr_app_10hz();
 }
 #endif
 
@@ -40,6 +42,7 @@ void Copter::userhook_SlowLoop()
 void Copter::userhook_SuperSlowLoop()
 {
     // put your 1Hz code here
+    zr_app_1hz();
 }
 #endif
 
diff --git a/ArduCopter/zr_app.cpp b/ArduCopter/zr_app.cpp
new file mode 100644
index 0000000000..f10792f13e
--- /dev/null
+++ b/ArduCopter/zr_app.cpp
@@ -0,0 +1,16 @@
+#include "Copter.h"
+
+
+void Copter::zr_app_1hz()
+{
+
+}
+
+void Copter::zr_app_10hz()
+{
+
+
+}
+void Copter::zr_app_50hz(){
+
+}
\ No newline at end of file