§ 17.44.020. Definitions.

As used in this chapter, unless the context otherwise requires:

"Airport" means Garner Field Airport.

"Airport elevation" means the established elevation of the highest point on the usable landing area measured in feet from mean sea level.

"Airport hazard" means any structure or tree or use of land; which obstructs the air space required for the flights of aircraft or which obstructs or interferes with the control or tracking anchor data acquisition in the landing, taking off or flight at an airport, or at any installation or facility relating to flight, and tracking and/or data acquisition of the flight craft; (or which is) hazardous to, interfering with or obstructing such landing, taking off or flight of aircraft or which is hazardous to or interferes with tracking and/or data acquisition pertaining to flight and flight vehicles.

"Airport hazard area" means any area of land or water upon which an airport hazard might be established if not prevented as provided in this chapter.

"Airport reference point" means the point established as the approximate geographic center of the airport landing area and so designated.

"Approach surface" means a surface longitudinally centered on the extended runway center line, extending outward and upward from the end of the primary surface and at the same slope as the approach zone height limitation slope set forth in Section 17.44.040 of this chapter. In plan, the perimeter of the approach surface coincides with the perimeter of the approach zone.

"Approach, transitional, horizontal, and conical zones" are set forth in Section 17.44.030 of this chapter.

"Board of adjustment" means a board consisting of five members appointed by the city council as provided by Article 46e-10, Revised Civil Statutes.

"Conical surface" means a surface extending outward and upward from the periphery of the horizontal surface at a slope of twenty to one (20:1) for a horizontal distance of four thousand (4,000) feet.

"Hazard to air navigation" means an obstruction determined to have a substantial adverse effect on the safe and efficient utilization of the navigable airspace.

"Height", for the purpose of determining the height limits in all zones set forth in this chapter and shown on the zoning map, the datum shall be mean sea level elevation unless otherwise specified.

"Horizontal surface" means a horizontal plane one hundred fifty (150) feet above the established airport elevation, the perimeter of which in plan coincides with the perimeter of the horizontal zone.

"Joint airport zoning board" means a board consisting of five members, two members of the city council and two members of the commissioner s court of the county. The four member's terms of office shall coincide with their respective elected term of office. The four members so appointed shall elect a fifth member who will be the chairperson of the board. The chairperson's tenure of office will be dependent on the will of the majority of the board members.

"Landing area" means the surface area of the airport used for the landing, take-off or taxiing of aircraft.

"Nonconforming use" means any preexisting structure, object of natural growth, or use of land which is inconsistent with the provisions of this chapter or an amendment thereto.

"Nonprecision instrument runway" means a runway having an existing instrument approach procedure utilizing air navigation facilities with only horizontal guidance, or area type navigation equipment, for which a straight-in nonprecision instrument approach procedure has been approved or planned.

"Obstruction" means any structure, growth, or other object, including a mobile object, which exceeds a limiting height set forth in Section 17.44.040 of this chapter.

"Person" means an individual, firm, partnership, corporation, company, association, joint stock association, or body politic, and includes a trustee, receiver, assignee, administrator, executor, guardian, or other representative.

"Primary surface" means a surface longitudinally centered on a runway. When the runway has a specially prepared hard surface, the primary surface extends two hundred (200) feet beyond each end of that runway; but when the runway has no specially prepared hard surface, or planned hard surface, the primary surface ends at each end of that runway.

The width of the primary surface of a runway will be that width prescribed in Part 77 of the Federal Aviation Regulations (FAR) for the most precise approach existing or planned for either end of that runway. The elevation of any point on the primary surface is the same as the elevation of the nearest point on the runway centerline.

For other than utility runways the width is five hundred (500) feet for nonprecision instrument runways having visibility minimums greater than three-fourths of a statute mile.

"Runway" means a defined area on an airport prepared for landing and take-off of aircraft along its length.

"Structure" means any object, constructed or installed by man, including, but without limitation, to buildings, towers, smokestacks and overhead transmission lines.

"Transitional surfaces" means those surfaces which extend outward at ninety (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.

"Tree" means any object of natural growth.

(Prior code § 3-52)