Yesterday I uploaded the North Atlantic Oceanic Waypoints which have never appeared in MSFS. While doing so I noticed three airways missing - 5E20, 5E22 and 5E23 which are the three used when flying from Iceland to North America they aren't new which surprised me. I tried adding them at the same time as the waypoints but kept getting compilation errors so gave up.Halifax (CYHZ) runways were renamed from 24/06 to 23/05 early this calendar year. FSX has them named as 24/06.A year ago runway 24 was closed at Heathrow and is now a taxiway but it still appears as a runway in FSX.In March this year about thirty new waypoints were added in UK Airspace, twenty were removed and around thirty airways were added, removed or rerouted. FSX still has the old data. I know at the same time a pile of other waypoint/airway changes took place in Europe. I will add the new waypoints for upload but airways and old waypoints will have to remain unchanged until I figure out how to do that.That means anyone reading charts or flying online will have a problem if they try to use the default navigational database. Imagine following an airway which has now moved, sounds dangerous.That raises a few questions in my mind.1 - At what point in time did MS decide to import the NAVDATA into FSX? It is obviously pretty old.2 - It would be good to update that data. I haven't found where it is stored yet but if it is one file as in the payware aircraft maybe MS should update that file from time to time and make it available as a download for us.3 - Assuming that MS will not make updated NAVDATA available to us would anyone be interested in joining me to make some updates? I haven't looked into the practicalities yet but there should be a way of updating that database.Because I fly and control online it is of particular interest to me but I know that we all like to keep things as real as it gets.Andrew Brown

I don't want to keep bumping this post but I thought I would just share a few things I have found can and cannot be done.As an Addon (scenery file). All pretty straightforward.Waypoints can be addedVOR/NDBs can be addedAirways can be addedExisting data can be removed/amended including the moving of airways but unfortunately that would mean making changes to the data shipped with FSX so I don't think we are allowed to.Andrew Brown

Thanks for your hard work Andrew. I'm trying to figure out how to use your waypoints to plan a realistic trip from Boston to London. It's a challenge since I've never done it before. R-

I agree-there needs to be an easy way to update. In my area the FAA has been madly changing airport id's-quite a few have changed at the point fsx was frozen...http://mywebpages.comcast.net/geofa/pages/rxp-pilot.jpg

1 - At what point in time did MS decide to import the NAVDATA into FSX? It is obviously pretty old.The date the bloggers have given is April 2005.As far as updates, individual airports, navaids and waypoints additions can be done fairly easily, though a lot of testing is required to work everything out. Jim Vile has done it for FS2004 for several airports, and some others have released files.Many of us have done modifications, but not released the files because frankly in my case, the work is not up to Jim's standard of quality.One issue in FS is that the data does not reside in a separate navdata file, but is part of the scenery data of each individual airport, and many airports may share some Navaids.In FS2004, we did not delete individual Navaids when they were decomissioned - because the Navaids were in one huge file per region. Corruption of dozens was too often the result of trying to remove one.The Navaids are still in one file, but the areas are much smaller and now documented in the Terrain SDK.We could move an airport location, and change the designator in FS2004. But again, there needs to be a bit of work in XML coding and the old airport designator remained in the pick list of the Go to Airport screen. But we can make it just an empty location - and the new one fully functional.

Certainly not something to just blunder into.There are 71 ATX files containing data relating to Waypoints, VORs, NDBs and Airways. Although one could remove data from those files removing data from Airports too (APX files) would be a whole other task.Andrew Brown

>Certainly not something to just blunder into.>>There are 71 ATX files containing data relating to Waypoints,>VORs, NDBs and Airways. Although one could remove data from>those files removing data from Airports too (APX files) would>be a whole other task.>>>Andrew Brown>>VORs and NDBs also have a presence in the NVX files.-Doug