25-2 Definitions

Airport - Kanab Municipal Airport Airport Elevation - The highest point of an airport's usable landing area measured in feet from mean sea level. This elevation is 4,867 feet MSL as of the date of this ordinance. Approach Surface - A surface longitudinally centered on the extended runway centerline, 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 IV of this Ordinance. In plan the perimeter of the approach surface coincides with the perimeter of the approach zone. Approach, Transitional, Horizontal, and Conical Zones - These zones are set forth in Section III of this Ordinance. Appeals Officer - appointed by the Kanab City Council. Conical Surface - A surface extending outward and upward from the periphery of the horizontal surface at a slope of 20 to 1 for a horizontal distance of 4,000 feet. Hazard to Air Navigation - 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 Ordinance and shown on the zoning map, the datum shall be mean sea level elevation unless otherwise specified. Heliport Primary Surface - The primary surface coincides in size and shape with the designated takeoff and landing area of a heliport. This surface is a horizontal plane at the elevation of the established heliport elevation. Horizontal Surface - A horizontal plane 150 feet above the established airport elevation, the perimeter of which in plan coincides with the perimeter of the horizontal zone. Larger than Utility Runway - A runway that is constructed for and intended to be used by propeller driven aircraft of greater than 12,500 pounds maximum gross weight and jet powered aircraft. 25-1 Nonconforming Use - Any pre-existing structure, object of natural growth, or use of and which is inconsistent with the provisions of this Ordinance or an amendment thereto. Nonprecision Instrument Runway - A runway having an existing instrument approach procedure utilizing air navigation equipment, for which a straight-in nonprecision instrument approach procedure has been approved or planned. It also means a runway for which a nonprecision approach system is planned and is so indicated on an approved Airport Layout Plan or any other planning document. Obstruction - Any structure, growth, or other object, including a mobile object, which exceeds a limiting height set forth in Section 24-4 of this Ordinance. Person - An individual, firm, partnership, corporation, company, association, joint stock association, or governmental entity; includes a trustee, a receiver, an assignee, or a similar representative of any of them. Precision Instrument Runway - A runway having an existing instrument approach procedure utilizing an Instrument Landing System (ILS) or a Precision Approach Radar (PAR). It also means a runway for which a precision approach system is planned and is so indicated on an approved airport layout plan or any other planning document. Primary Surface - A surface longitudinally centered on a runway. When the runway has a specially prepared hard surface, the primary surface extends 200 feet beyond each end of that runway; for military runways or 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 is set forth in Section III of this Ordinance. The elevation of any point on the primary surface is the same as the elevation of the nearest point on the runway centerline. Runway - A defined area on an airport prepared for landing and takeoff of aircraft along its length. Structure - An object, including mobile object, constructed or installed by man, including but without limitation, buildings, towers, cranes, smokestacks, earth formation, and overhead transmission lines. Transitional Surfaces - These surfaces extend outward at 90 degree angles to the runway centerline and the runway centerline extended at a slope of seven (7) feet horizontally for each foot vertically from the sides of the primary and approach surfaces to where they intersect the horizontal and conical surfaces. Transitional surfaces for those portions of the precision approach surfaces, which project through and beyond the limits of the conical surface, extend a distance of 5,000 feet measured horizontally from the edge of the approach surface and at 90 degree angels to the extended runway centerline. Tree - Any object of natural growth. Utility Runway - A runway that is constructed for and intended to be used by propeller driven aircraft of 12,500 pounds maximum gross weight and less. Visual Runway - A runway intended solely for the operation of aircraft using visual approach procedures.