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P3D v 5.3 most default airports on a 'plateau'.


I've just recently installed P3D v 5.3 without any scenery add-ons. I quickly found that the vast majority of included default airports have an elevation mismatch with surrounding terrain, resulting in default airports being situated on a plateau with cliffs (please see attached photo of default KABI airport scenery in P3D v5.3). I've done extensive research on the issue and the root cause is apparently Lockheed Martin's decision to eliminate automatic generation of 'fill mesh' surrounding default airports in order to more thoroughly integrate sloped runways into sceneries. The net effect is that most default airports will now suffer from plateau effect in P3D v5 and above.

To counter this issue, I've tried in vain to use a P3D v5 compatible version of ADE to manually flatten default airports with no success. Specifically, I've tried generating airport background exclude polygons, then replacing the same with new flatten polygons, along with adjusting airport altitudes. Nothing I do seems to have any effect at all on the 'airport cliffs' situation and I'm really wondering if all efforts here are futile because of the way Lockheed has redesigned default airport mesh implementation. Does anyone have any insight into this issue and if so, is there ultimately any kind of solution using ADE? I really don't want to continue using P3D V5 if this cannot be resolved.

Thank you.