add tkoff and landing autoflap

plane/source/docs/automatic-flaps.rst

@@ -5,7 +5,7 @@ Automatic Flaps
 ===============
 
 Plane can control flaps in autonomous modes based on an airspeed
-schedule. Simply put you can specify two speeds and two flap settings.
+schedule and/or during autotakeoffs and landings. Simply put you can specify two speeds and two flap settings.
 If your target speed (not your actual speed) is above the specified
 speeds then your flaps are set to the default (trim) position. If your
 target speed is lowered below the first flap speed, then flaps are
@@ -28,18 +28,23 @@ channel function for the channel you are using for flaps to a value of
 3.
 
 Next set the parameters for your two flap speeds and flap values. These
-parameters are :ref:`FLAP_1_PERCNT<FLAP_1_PERCNT>`, :ref:`FLAP_2_PERCNT<FLAP_2_PERCNT>`, :ref:`FLAP_1_SPEED<FLAP_1_SPEED>`, :ref:`FLAP_2_SPEED<FLAP_2_SPEED>` 
+parameters are :ref:`FLAP_1_PERCNT<FLAP_1_PERCNT>`, :ref:`FLAP_2_PERCNT<FLAP_2_PERCNT>`, :ref:`FLAP_1_SPEED<FLAP_1_SPEED>`, :ref:`FLAP_2_SPEED<FLAP_2_SPEED>`
 
 Redo your radio calibration. Be sure to set the flap switch to the zero
 flap position before finishing the radio calibration so that zero flaps
 is stored as the trim (default) position.
 
-That is basically all the setup required for flaps. If you find that
+That is basically all the setup required for speed/manual controlled flaps. If you find that
 your flaps are moving backwards from what you expect, change the
 reversing parameter for your flap channel, for example
 :ref:`SERVO5_REVERSED<SERVO5_REVERSED>`. Set it to 1 to reverse the flaps, set to 0 for normal
 operation.
 
+In addition, you can independently have flap positions for automatic takeoffs and/:or landings using:
+
+- :ref:`LAND_FLAP_PERCNT<LAND_FLAP_PERCNT>`
+- :ref:`TKOFF_FLAP_PCNT<TKOFF_FLAP_PCNT>`
+
 Using flaps
 ~~~~~~~~~~~