Unlike high-level airfields, heliports and hydrobases, which constitute airfields with special features, those with normal features are laid out around one or more runways (or grassed strips for some of those intended to serve light aviation), where the orientation is determined by wind distribution, unless there are topographical or environmental obstacles present.

Further information with regard to this section can be found in “Instruction Technique sur les Aérodromes Civils (I.T.A.C.) – Technical Instruction on Civil Airfields) which is accessible on the Service Technique de l’Aviation Civile (S.T.A.C.) website.

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