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 approach zones, transitional zones, horizontal zones and conical zones as they apply to a particular airport. Such zones are shown on Holdenville Municipal Airport zoning map consisting of one sheet, prepared by Ammerman, Butler and Thomas, Inc., and dated December 3, 1973, which is attached to Ordinance 514, and made a part hereof by reference. An area located in more than one of the following zones is considered to be only in the zone with the more restrictive height limitation. The various zones are hereby established and defined as follows.
(A) Approach zone. The inner edge of this approach zone coincides with the width of the primary surface and is 150 feet wide. The approach zone expands outward uniformly to a width of 1,250 feet at a horizontal distance of 5,000 feet from the primary surface. Its centerline being the continuation of the centerline of the runway.
(B) Transitional zones. These zones are hereby established as the area beneath the transitional surfaces. These surfaces extend outward and upward at 90 degree angles to the runway centerline and the runway centerline extended at a slope of seven feet horizontally for each foot vertically from the sides of the primary and approach surfaces to where they intersect the horizontal and conical surfaces.
(C) Horizontal zone. The horizontal zone is hereby established by swinging arcs of 5,000-foot radii from the center of each end of the primary surface of each runway, and connecting the adjacent arcs by drawing lines tangent to those arcs. The horizontal zone does not include the approach and transitional zones.
(D) Conical zone. The conical zone is hereby established as the area that commences at the periphery of the horizontal zone and extends outward therefrom a horizontal distance of 4,000 feet.
(Prior Code, § 7-7-3)