Kupang Indonesia (WATT) according to Sky Vector Runways should be 7 & 25 . Jepessen and Navigraph , identify this runway as 8 & 26. However MSFS & Fenix recognizes it correctly as 7 & ILS25
Not a big issue but for quality control it’s worth to be mentioned
Charles
Hi Charles,
the runway ident 08/25, according the AIP Indonesia and our charts, also data, is correct. MSFS is outdated, here we can’t change the runway idents but I have checked thr Fenix or PMDG data and here we have also 08/25.
Can you post a screenshot of the Fenix FMS please, and can you check if the AIRAC is current in your Fenix addon please?
Cheers
Richard
Thank you Richard, You were right , updating to AIRAC 2402 did the trick . So one of those previous Airac did show the heading as 7/25. WATT is one of those runway who could be called either 7/25 or 8/26 as according to Sky Vector and El Tari Airport documentation the true heading 075.3 degrees & 255.3 degrees . But as I said it’s not an issue , as long as I land on the runway and not on the tarmac (smile)
Best Regards Charles
Hi Charles,
sorry, that I must correct you - but Sky Vector and also the El Tari Airport documentation (whatever that is) is wrong. An airport can have ONLY! one runway-ident and not “multiple”.
The exact true headings are
Runway 08 = 76.510919436447182 degrees
Runway 26 = 256.50700044993135 degrees
Based on following runway threshold coordinates (also based on the AIP and our data):
Runway 08 = -10.17419444, 123.66002778
Runway 26 = -10.16891944, 123.68221944
So, you see there is no real tolerance if it´s 07/08 or 25/26. The correct runway idents are 08/26.
Hope that helps
Richard
Hi Richard,
Thank you for the precision , and the time and effort you have put in answering my query. Your response is highly commendable, and very much appreciated. However I am still surprised that during my research on different data base all says 7/25 and only one ( Navigraph) says 8/26. Surely not everyone can be wrong.? If I ever have the opportunity to go back again to Kupang (WATT) , I shall ask, ( It’s a wonderful unspoiled place for SCUBA diving!)
Take care
Charles
Hi again Charles,
no problem, it’s part of my job to make it sure that the data are correct or to look if they are correct abd when not why and where the issue is.
In this case I’m 100% sure, that all your references are incorrect because the AIP of Indonesia is the only one reference for all worldwide data provider.
Skyvector as an example uses for the data (airport information) OSM (OpenStreetMap) which is good (we use it too for some data) but not really an official source for real world aviation data.
When you compare the runway id markers on the sat viewes between Bing maps and Google maps, than Bing shows you 07/25 and Google 08/25. So google shows on one side a newer sat image as on the other side (you see also the cut, the edge). But Google is more accurate here due the correct runway ident at least for one runway (because 08/25 is impossible).
Thats the reason why I’m 100% sure, that 08/26 is correct and the only correct answer at least for real world aviation.
Cheers
Richard
Hi Richard,
Thank you for your patience and for your time in explaining the logic . I , then stand corrected. Amazing that a whole airport over time can change direction, hence ID . Who would believe it? This will be an interesting topic at dinner time.
Cheers and once again thank you
Charles
Hi again Charles,
only as an short starter for dinner: the secret is the magnetic field on earth. The runway itself is always on the same place 
For your dessert, after a hopefully wonderful meal:
https://www.ngdc.noaa.gov/geomag/calculators/mobileDeclination.shtml#WMM
Enjoy your dinner and also more 
Thank you
Richard
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