ArduPlane: Fix typos

ArduPlane/APM_Config.h.reference

@@ -354,7 +354,7 @@
 // GCS is in use then this can mean a loss of communication with the GCS.  Such a failsafe will be 
 // classified as either short (greater than 1.5 seconds but less than 20) or long (greater than 20).
 // Also, if GCS_HEARTBEAT_FAILSAFE is enabled and a heartbeat signal from the GCS has not been received
-// in the preceeding 20 seconds then this will also trigger a "long" failsafe.
+// in the preceding 20 seconds then this will also trigger a "long" failsafe.
 //
 // The SHORT_FAILSAFE_ACTION and LONG_FAILSAFE_ACTION settings determines what APM will do when
 // a failsafe mode is entered while flying in AUTO or LOITER mode.  This is important in order to avoid
@@ -515,7 +515,7 @@
 // MIN_GNDSPEED                             OPTIONAL
 //
 // The minimum ground speed in metres per second to maintain during
-// cruise. A value of 0 will disable any attempt to maintain a minumum
+// cruise. A value of 0 will disable any attempt to maintain a minimum
 // speed over ground.
 //
 #define MIN_GNDSPEED	0
@@ -557,7 +557,7 @@
 // THROTTLE_MAX                             OPTIONAL
 //
 // The maximum throttle setting the autopilot will apply.  The default is 75%.
-// Reduce this value if your aicraft is overpowered, or has complex flight
+// Reduce this value if your aircraft is overpowered, or has complex flight
 // characteristics at high throttle settings.
 //
 //#define THROTTLE_MIN			0 // percent

ArduPlane/Attitude.cpp

@@ -622,7 +622,7 @@ bool Plane::suppress_throttle(void)
             millis() - started_flying_ms > MAX(launch_duration_ms, 5000U) && // been flying >5s in any mode
             adjusted_relative_altitude_cm() > 500 && // are >5m above AGL/home
             labs(ahrs.pitch_sensor) < 3000 && // not high pitch, which happens when held before launch
-            gps_movement) { // definate gps movement
+            gps_movement) { // definite gps movement
             // we're already flying, do not suppress the throttle. We can get
             // stuck in this condition if we reset a mission and cmd 1 is takeoff
             // but we're currently flying around below the takeoff altitude

ArduPlane/Parameters.cpp

@@ -56,7 +56,7 @@ const AP_Param::Info Plane::var_info[] = {
 
     // @Param: AUTOTUNE_LEVEL
     // @DisplayName: Autotune level
-    // @Description: Level of aggressiveness for autotune. When autotune is run a lower AUTOTUNE_LEVEL will result in a 'softer' tune, with less agressive gains. For most users a level of 6 is recommended.
+    // @Description: Level of aggressiveness for autotune. When autotune is run a lower AUTOTUNE_LEVEL will result in a 'softer' tune, with less aggressive gains. For most users a level of 6 is recommended.
     // @Range: 1 10
     // @Increment: 1
     // @User: Standard
@@ -1045,7 +1045,7 @@ const AP_Param::Info Plane::var_info[] = {
 
     // @Param: CRASH_DETECT
     // @DisplayName: Crash Detection
-    // @Description: Automatically detect a crash during AUTO flight and perform the bitmask selected action(s). Disarm will turn off motor for saftey and to help against burning out ESC and motor. Setting the mode to manual will help save the servos from burning out by overexerting if the aircraft crashed in an odd orientation such as upsidedown.
+    // @Description: Automatically detect a crash during AUTO flight and perform the bitmask selected action(s). Disarm will turn off motor for safety and to help against burning out ESC and motor. Setting the mode to manual will help save the servos from burning out by overexerting if the aircraft crashed in an odd orientation such as upsidedown.
     // @Values: 0:Disabled,1:Disarm
     // @Bitmask: 0:Disarm
     // @User: Advanced

ArduPlane/commands_logic.cpp

@@ -506,7 +506,7 @@ bool Plane::verify_takeoff()
             // estimation we save our current GPS ground course
             // corrected for summed yaw to set the take off
             // course. This keeps wings level until we are ready to
-            // rotate, and also allows us to cope with arbitary
+            // rotate, and also allows us to cope with arbitrary
             // compass errors for auto takeoff
             float takeoff_course = wrap_PI(radians(gps.ground_course_cd()*0.01f)) - steer_state.locked_course_err;
             takeoff_course = wrap_PI(takeoff_course);

ArduPlane/px4_mixer.cpp

@@ -131,7 +131,7 @@ uint16_t Plane::create_mixer(char *buf, uint16_t buf_size, const char *filename)
             continue;
         }
         if (mix == 0) {
-            // pass thru channel, possibly with reversal. We also
+            // pass through channel, possibly with reversal. We also
             // adjust the gain based on the range of input and output
             // channels and adjust for trims
             const RC_Channel *chan1 = RC_Channel::rc_channel(i);

ArduPlane/release-notes.txt

@@ -158,7 +158,7 @@ The changes in this release are:
  - improved NavIO2 support
  - added BATT_WATT_MAX parameter
 
-The reverse thrust landing is particulary exciting as that adds a
+The reverse thrust landing is particularly exciting as that adds a
 whole new range of possibilities for landing in restricted areas. Many
 thanks to Tom for the great work on getting this done.
 
@@ -726,7 +726,7 @@ The changes in this release are:
 
 The most important bug fix is the one for short term loss of RC
 control. This is a very long standing bug which didn't have a
-noticible impact for most people, but could cause loss of RC control
+noticeable impact for most people, but could cause loss of RC control
 for around 1 or 2 seconds for some people in certain circumstances.
 
 The bug was in the the AP_HAL RCInput API. Each HAL backend has a flag