diff --git a/ArduPlane/GCS_Mavlink.pde b/ArduPlane/GCS_Mavlink.pde
index b4b8af8cf7..c596cf66af 100644
--- a/ArduPlane/GCS_Mavlink.pde
+++ b/ArduPlane/GCS_Mavlink.pde
@@ -2104,14 +2104,6 @@ static void gcs_update(void)
     }
 }
 
-static void gcs_send_text(gcs_severity severity, const char *str)
-{
-    gcs0.send_text(severity, str);
-    if (gcs3.initialised) {
-        gcs3.send_text(severity, str);
-    }
-}
-
 static void gcs_send_text_P(gcs_severity severity, const prog_char_t *str)
 {
     gcs0.send_text(severity, str);
diff --git a/ArduPlane/climb_rate.pde b/ArduPlane/climb_rate.pde
index 5649a2fd5b..644be85a34 100644
--- a/ArduPlane/climb_rate.pde
+++ b/ArduPlane/climb_rate.pde
@@ -1,5 +1,7 @@
 // -*- tab-width: 4; Mode: C++; c-basic-offset: 4; indent-tabs-mode: nil -*-
 
+#if 0 // currently unused
+
 struct DataPoint {
 	unsigned long	x;
 	long			y;
@@ -17,8 +19,7 @@ long			yi;
 long			xiyi;
 unsigned long	xi2;
 
-#if 0 // currently unused
-static void add_altitude_data(unsigned long xl, long y)
+void add_altitude_data(unsigned long xl, long y)
 {
 	//Reset the regression if our X variable overflowed
 	if (xl < xoffset)
diff --git a/ArduPlane/commands.pde b/ArduPlane/commands.pde
index 28e88e0f97..3d16189e9d 100644
--- a/ArduPlane/commands.pde
+++ b/ArduPlane/commands.pde
@@ -1,19 +1,7 @@
 // -*- tab-width: 4; Mode: C++; c-basic-offset: 4; indent-tabs-mode: nil -*-
-
-/* Functions in this file:
-	void init_commands()
-	void update_auto()
-	void reload_commands_airstart()
-	struct Location get_cmd_with_index(int i)
-	void set_cmd_with_index(struct Location temp, int i)
-	void increment_cmd_index()
-	void decrement_cmd_index()
-	long read_alt_to_hold()
-	void set_next_WP(struct Location *wp)
-	void set_guided_WP(void)
-	void init_home()
-************************************************************ 
-*/
+/*
+  logic for dealing with the current command in the mission and home location
+ */
 
 static void init_commands()
 {
@@ -125,13 +113,6 @@ static void set_cmd_with_index(struct Location temp, int i)
 	eeprom_write_dword((uint32_t *)	mem, temp.lng);
 }
 
-static void increment_cmd_index()
-{
-    if (g.command_index <= g.command_total) {
-        g.command_index.set_and_save(g.command_index + 1);
-	}
-}
-
 static void decrement_cmd_index()
 {
     if (g.command_index > 0) {
diff --git a/ArduPlane/events.pde b/ArduPlane/events.pde
index de38c848ca..412c67ec5d 100644
--- a/ArduPlane/events.pde
+++ b/ArduPlane/events.pde
@@ -79,7 +79,7 @@ static void failsafe_short_off_event()
 }
 
 #if BATTERY_EVENT == ENABLED
-static void low_battery_event(void)
+void low_battery_event(void)
 {
 	gcs_send_text_P(SEVERITY_HIGH,PSTR("Low Battery!"));
 	set_mode(RTL);