The Airport Overlay Zone shall enhance the utility of the McMinnville Municipal Airport by preventing the establishment of any structure or use of land which unreasonably obstructs the safe flight of aircraft in landing or taking off. Further, this overlay zone is intended to prevent the establishment of airspace obstructions through height restrictions and other land use controls, as deemed essential to protect the public health, safety, and welfare consistent with Federal Aviation Regulations (FAR), Part 77. The Airport Overlay Zone is intended to implement recommendations contained in the McMinnville Airport Master Plan Update (1989-2009) and as drawn on the Airport Imaginary Surfaces Map (Wilsey & Ham, 1989). (Ord. 4512 §1 (part), 1992).