Has the GS antenna position been corrected since it was last reported as being in the incorrect position? I keep on getting very low on the approach and have to take corrective action prior to crashing into buildings whilst still inbound to the checkerboard!
From the screenshots the aircraft is about 200ft low at each NM checkpoint.
Thanks
G’day omega892, yes these coordinates were updated in the 2604 AIRAC. I will do some more checking on the impact of the move of the LLZ and GS antenna positions.
Thanks for your update.
Regards, Martin YBLT
G’day again, I have looked at the history of the development of this data and I had the same issue when I was carrying out test flights. In the end I had to discover the coordinates of the antennae as coded in the third party scenery (from the scenery developers). When the tailored VHHX data antennae coordinates matched the scenery, the glide slope issue was fixed. This is the reason the historical real world coordinates were not investigated. Now the old coordinate evidence has been found, the actual historical coordinates have now been updated into the current VHHX ARINC data.
To dig deeper into this and a possible fix, are you able to provide the GS and LLZ coordinates for the scenery you are experiencing issues with please?
Best regards, Martin YBLT
Many thanks for this Martin, much appreciated.
I’m using the following scenery:
Apologies, I’m not sure how to extract the GS and LLZ cooridinates,
Regards,
Ben
There is a Kai Tak provided with the base sim, it might be a good idea to make sure it also works with that.
Added in late 2022, and as far as I know it’s still provided in MSFS 2024.
Regards,
Tim
So I uninstalled the third party scenery that I was using and installed the default Asobo Kai Tak and still have the same issue of the aircraft being very low whilst tracking the glideslope.
G’day Ben, thanks for doing some background checks. I have reached out to Osobo via their website email to check the coordinates. I hope they respond in a reasonable time frame. FYI the original data was written to match my old FSX FlyTampa scenery.
Regards, Martin
Thanks for this - was this a recent change because I haven’t had any issues with the GS in MSFS until the past few weeks.
G’day Ben, this was updated with the 2604 AIRAC so, the most recent update.
Asobo might have perpetuated the old coordinates from FlyTampa days??? Other add-ons might have kept the old coordinates as well???
I have plotted the old vs new coordinates in the image shown.
KLLZo is the old localiser position from FlyTampa and was used in VHHX tailored data before 2604, KLGSo is the old glide slope position.
KLLZn is the new correct historical position as well as the KLGSn for the new glide slope antenna location.
I will submit an update for the tailored data to reflect the correct antennae elevations, coordinates and the distances from the runway thresholds.
Lets see if that will fix the issue.
Regards, Martin YBLT
Many thanks Martin, much appreciate the help.
