Tregarth Posted December 20, 2018 Share Posted December 20, 2018 I have installed both Southern England and EGHI using Windows 10. According to the CAA chart the ILS for Rwy 20 ( a Cat 1) runway is 113.35, this agrees with the X-Plane pop-up screen (visible in -14). I am using the default C 172 which I have also used on the Gatwick runways where the ILS works as it shouuld. As you can see from the EGHI approach screen grabs, in -12 I am on the RWY centreline and high but the gauge disagrees. Similarly in -14 I am on the right of the RWY and high but, if I follow the gauge and "fly towards the needle" I will be off the airport. In fact the centre line needle reacts (wrongly) to the movement of the airraft but the glide slope needle does not move, it just stays centred (although it behaves correctly at Gatwick.) What can be done to remedy this, please? The ADF/NDB works properly. Thank you. Link to comment Share on other sites More sharing options...
MartinM Posted January 8, 2019 Share Posted January 8, 2019 Let me guess X-Plane default has apt.dat containing EGHI X-Plane Global Airport has another apt.dat containing EGHI ORBX has a EGHI apt.dat The NAVAIDS are coming out of earth_nav.dat either out the default navdata cycle inside the resources\default data and custom data, if you have navigraph/navdata pro updates For one of my airports I had to fix some misalignment by removing the apt.dat from the custom scenery\global airports folder Link to comment Share on other sites More sharing options...
MartinM Posted January 8, 2019 Share Posted January 8, 2019 I did a quick check using WEB 1.8alpha and as you can see, the ILS from XP, cycle 1901, is perfectly in line with the scenery. Link to comment Share on other sites More sharing options...
MartinM Posted January 8, 2019 Share Posted January 8, 2019 Disagree EGHI ILS10 is 110.75 4 50.942083333 -1.361358333 43 11075 18 199.340 ISN EGHI EG 20 ILS-cat-I 6 50.955208333 -1.356041667 43 11075 18 310199.340 ISN EGHI EG 20 GS 12 50.955177778 -1.355938889 54 11075 25 0.200 ISN EGHI EG SOUTHAMPTON DME-ILS VOR SAM is 133.35 this is why you are getting a deviation Link to comment Share on other sites More sharing options...
Tregarth Posted January 14, 2019 Author Share Posted January 14, 2019 Sorry, I do not understand any of this. I have Googled " WEB 1.8alpha " and again do not understand what was displayed. Could you please explain what you have written? Thank you, Tregarth Link to comment Share on other sites More sharing options...
MartinM Posted January 15, 2019 Share Posted January 15, 2019 ILS frequency, as mentioned is 110.75 and not 113.35 - This is all I have to add here Link to comment Share on other sites More sharing options...
DaveH-UK Posted January 15, 2019 Share Posted January 15, 2019 Maybe you are tuned to the VOR/DME beacon 113.35 (the red hexagon on the image) and not the ILS frequency 110.75. This may also be why the glide slope does not move? Just a thought. Link to comment Share on other sites More sharing options...
Tregarth Posted February 13, 2019 Author Share Posted February 13, 2019 DaveH-UK You are right. I asked XP to tune the NAV1 so it tuned to the VOR/DME, which I thought was the ILS. Tuning the ILS (on NAV1) to 110.75 solved the problem. Thank you. Link to comment Share on other sites More sharing options...
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