Update

manual/01-intro/02-installation.rst

@@ -4,18 +4,14 @@ Installation and setup
 App installation
 ----------------
 
-Installation on Android devices
-  **Enroute Flight Navigation** is available as an Android App in the `Google
-  Play Store
-  <https://play.google.com/store/apps/details?id=de.akaflieg_freiburg.enroute>`_.
-
-Installation on iOS devices
-  **Enroute Flight Navigation** has been ported to iOS and is available for
-  public beta testing. Download a public beta version of the app for iOS on
-  `Apple TestFlight <https://apps.apple.com/de/app/testflight/id899247664>`_.
+Installation on mobile devices
+  **Enroute Flight Navigation** is available for freee on `Google Play
+  <https://play.google.com/store/apps/details?id=de.akaflieg_freiburg.enroute>`_
+  and on the `App Store
+  <https://apps.apple.com/us/app/enroute-flight-navigation/id6448892176>`_.
 
 Installation on Linux desktop machines
-  **Enroute Flight Navigation** is available for free download at `flathub.org
+  **Enroute Flight Navigation** is available for free on `flathub.org
   <https://flathub.org/apps/details/de.akaflieg_freiburg.enroute>`_.  Depending
   on your Linux distribution, you might also find the app in the software
   management application on your computer.

manual/02-advanced/airspace.rst

@@ -0,0 +1,32 @@
+Import airspace data
+====================
+
+**Enroute Flight Navigation** comes with a set of aviation maps that cover large
+parts of the world and are updated frequently. In addition, users can import
+airspace data in standard `OpenAir
+<http://www.winpilot.com/usersguide/userairspace.asp>`_ format. Aviation clubs
+and airfield operators use this feature to distribute OpenAir files to their
+members to highlight noise-sensitive areas or airspaces available by local
+agreement.
+
+
+Import OpenAir files on Android devices
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+If you are using an Android device, you must transfer the OpenAir file to the
+device and open it there. There are many ways to transfer files, but most users
+will likely do one of the following.
+
+- Download the OpenAir file on the Android device with a web browser. The
+  browser will then offer to open the file in **Enroute Flight Navigation**.
+
+- Download the OpenAir file to a desktop computer, connect the device to the
+  desktop computer via USB, and then copy the file to the device. Afterward,
+  open the file with a file management app on the Android device.
+
+
+Import Maps on Linux Desktop
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+If you are running **Enroute Flight Navigation** on a Linux Desktop machine, use
+the file manager to drag and drop the file into the app's main window.

manual/04-appendix/technical.rst

@@ -127,7 +127,7 @@ Altimeter readings
   access to static pressure.  To estimate the barometric altitude, the SkyEcho
   correlates cabin pressure altitude to altitudes of nearby traffic.  The author
   of **Enroute Flight Navigation** is not convinced that this method gives
-  altimeter readings that are sufficiently realiable for aviation purposes.
+  altimeter readings that are sufficiently reliable for aviation purposes.
 
 
 .. _pingUSB:

manual/index.rst

@@ -75,6 +75,7 @@ Advanced Use
    :name: sec-advanced
 
    02-advanced/customMaps
+   02-advanced/airspace
 
 
 Reference: Pages