Airport elevation

[Kahu]

I have transferred a lot of NZ AFCAD files from fs9 to fsx and have found that most of them have airport elevations either way to high or are sunken. Is there a way using AFCAD2.0 to change the elevation of the airfields? I have tried changing the elevation in airport properties and also changed the runway elevation but this does not seem to work.

[Ian Warren]

Been lookin into that Old AFCAD s place ac but loose polygons in airport scenery , XAFCAD will fix the prob and settle levels , also require origin airport scenery to delete old flattens .

[toprob]

Yes, the change from the old 600 metre default mesh in FS2004 to the new 75metre mesh in FSX means that most airports have new elevations. Just using the FS2004 AFCAD will glue the airport facilities to the old elevation, which causes the plateaus or holes.
There's also (usually) a flatten polygon under the airport, to match the facilities elevation. So to fix this, you need to:
1. Delete the old flatten;
2. Create a new flatten;
3. Change the AFCAD elevation;
4. and sometimes you need to put a copy of the AFCAD file somewhere where it has a much higher priority -- I used Scenery\World\scenery.

To do the first two, I use FSX-KML, available from the FSDeveloper.com site.
There's plenty of info on how to use this on the FSX-KML site, but it's relatively easy -- you just need Google Earth installed. You draw your flatten polygons in Google Earth, save them, load them into FSX-KML, tag them with a flatten tag, and generate a flatten (or exclude-flatten) BGL.

[G-HEVN]

You might find yourself better off modifying the FSX default airport rather than taking a modified FS9 airport and converting it. It'll be less problematic in the end. Always start with the most recent source, as they say.

[Kahu]

Thanks for all that, this was heaps of help , I see a new version of Fsx Planner is out that finds the original airport file in fsx. When I get this to work properly(recompile) it should do everything I need.