When the pilot calls the ILS, an airfield selector is shown listing all the airfield of the current island and the range to them in kilometers. The airfield selector is clever enough to show the name of the closest city/town to the airfield, if any, or a representative locality. If no towns or localities are close to the airport, it is listed simply as AirStrip##.
Then the pilot selects one of the listed airfields and clicks the activate ILS button (or cancel). Once the ILS is active, the pilot sees a HUD, and a path is calculated to bring the plane to the landing point of the airport. Some dynamic symbology is displayed in the HUD to help the pilot to align correctly with the runway as well as blinking alarms if the plane is too high, too low, too fast or too slow.
OFPEC ILS symbology:
Vertical and horizontal bars point to the current landing waypoint. If vertical is bright green your heading is correct, if horizontal is bright green, your nose angle is correct. Try to form a cross with its center located at ILS HUD's center for an accurate aproach.
The square and the circle may help you to align with the landing waypoint from the correct direction. The circle is between the current landing waypoint and the next one, the current landing waypoint is between the circle and the square, so if you head first towards the square, and then turn to align with the cross bars, you will end already aligned with the next landing waypoint, with the cross bars center close to the circle.
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Instructions:
You are an A10 pilot, coming in to land in difficult weather conditions. Activate your ILS system to help guide you home!
Check notes for instructions about OFPEC ILS usage.
Well done! You and your Harrier are in one piece!
Oh dear. That was a pretty expensive aircraft you just crashed...