ATAPs

Airport Terrain Adjustment Packs. These products fix airport plateaus inherent in the FSX/P3D flat-airport limitation, as well as correct airport, runway and apron misplacements, and corrects airport property polygons to better reflect real-life conditions. You may report plateaus and other default airport errors and freely request development at the Airport Development Requests forum under the Support and Community link, or commission an ATAP under the Custom Development category. This puts the project on top of the priority list and you receive a 5% royalty on all sales of that ATAP from the Toposim Distribution Center going forward.

Please note that ATAPs are not fancy Orbx-esque airports. They simply make adjustments to the default airports so that any plateaus resulting from the flat-airport limitation are addressed in the most natural way subject to the restraints of the medium. ATAPs also frequently tweak the taxiways, aprons, and default building locations to better reflect the real world, based on georeferenced aerial and satellite images.