11-3-3: ZONES:
In order to carry out the provisions of this Chapter, there are hereby created and established certain zones which include all of the land lying within the instrument approach zones, noninstrument approach zones, transition zones, horizontal zones and conical zones.
Such areas and zones are shown on Airspace Zoning Map consisting of one sheet, prepared by Hamilton and Voeller, Consulting Engineers and dated August, 1974, which is attached to Ordinance 475, on file in the office of the City Clerk, and made a part hereof. The various zones are hereby established and defined as follows:
   A.   Noninstrument Approach Zone: A noninstrument approach zone is established at each end of all noninstrument runways for noninstrument landings and take offs. The noninstrument approach zones shall have a width of two hundred fifty feet (250') at a distance of two hundred feet (200') beyond each end of the runway, widening thereafter uniformly to a width of one thousand two hundred fifty feet (1,250') at a distance of five thousand two hundred feet (5,200') beyond each end of the runway, its center line being the continuation of the center line of the runway.
   B.   Transition Zones: Transition zones are hereby established adjacent to each noninstrument runway and approach zone as indicated on the Zoning Map. Transition zones symmetrically located on either side of runways have widths as shown on the Zoning Map. Transition zones extend outward from a line one hundred twenty five feet (125') on either side of the center line of the noninstrument runway, for the length of such runway plus two hundred feet (200') on each side; and are parallel and level with such runway center line. The transition zones along such runway slope upward and outward one foot (1') vertically for each seven feet (7') horizontally to the point where they intersect the surface of the horizontal zone. Further, transition zones are established adjacent to the noninstrument approach zones for the entire length of the approach zones. These transition zones have variable widths, as shown on the Zoning Map. Such transition zones flare symmetrically with either side of the approach zones from the base of such zones and slope upward and outward at the rate of one foot (1') vertically for each seven feet (7') horizontal and conical zones.
   C.   Horizontal Zone: A horizontal zone is hereby established as the area inscribed by a radius of five thousand feet (5,000') both sides of and parallel to the center line of said runway. The horizontal zone does not include the noninstrument approach zones and the transition zones.
   D.   Conical Zone: A conical zone is hereby established as the area that commences at the periphery of the horizontal zone and extends outward therefrom a distance of four thousand feet (4,000'). The conical zone does not include the noninstrument approach zones and transition zones. (Ord. 475, 1974)