iuiz Posted December 11, 2021 Posted December 11, 2021 I just finished the ILS Training mission without major problems. However when I tried it in a solo mission it did not work out. I started investigating and it seems that I have to enter a waypoint for the dotted line to appear in the HUD and also you need to contact the tower to get the ILS station to work. I can live with contacting the tower, but needing to setup a wayoint feels kinda wring. Shouldn't ILS be independent from onboard navigation systems? Is there a way to use ILS when you just decided to use an airport and got the ILS information and not the coordinates from the F10 map?
Galinette Posted December 11, 2021 Posted December 11, 2021 You need a waypoint but only CP and PD values are used (Runway heading and glideslope). LAT/LON, ALT, etc... are not accounted for in the ILS display.
Frederf Posted December 12, 2021 Posted December 12, 2021 You can of course use the ILS localizer and glideslope plainly without the synthetic runway and other features by simply tuning the ILS station and looking at the position bars on the ADI. The marker beacon receiver would work as well. If that's the level of service needed then that's all you need to do. Only for the additional layer of the synthetic runway and steering cue features is more information required. The system needs data which is uses from whatever BUT (waypoint) is selected. Also the full system requires that QFE barometric altimeter setting is used for accurate display. The important digital data is the runway geographic heading, ideally to the 0.1° and the angle of the GS (3.0° in all cases). The system uses this extra information to provide display and guidance relative to the ILS beam to provide those extra features.
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