201.01 Configuration of Airport | 201.08 Enforcement |
201.02 Definitions | 201.09 Board of Adjustment |
201.03 Airport Zones | 201.10 Appeals |
201.04 Airport Zone Height Limitations | 201.11 Judicial Review |
201.05 Use Restrictions | 201.12 Violations |
201.06 Nonconforming Uses | 201.13 City Action to Prevent Unlawful Acts |
201.07 Permits |
At the time of ordinance adoption (September 12, 1998), the regulatory configuration of the Ankeny Regional Airport was as follows:
1. Runway 4/22 is a utility runway with a visual approach.
2. Runway 18/36 is a runway larger than utility with a visual minimum greater than three-fourths mile non-precision instrument approach.
As used in this chapter, unless the context otherwise requires, the following terms are defined:
1. “Airport” means the Ankeny Regional Airport.
2. “Airport Board of Adjustment” means a board consisting of five members appointed as provided in Section 329.12, Code of Iowa. The board shall have the power granted by Section 329.11 and Section 329.12.
3. “Airport elevation” means the highest point of an airport’s usable landing area measured in feet from sea level. The Ankeny Regional Airport elevation is 910 feet above mean sea level.
4. “Approach surface” means a surface longitudinally entered 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 201.04 of this chapter. In plan, the perimeter of the approach surface coincides with the perimeter of the approach zone.
5. “Conical surface” means a surface extending outward and upward from the periphery of the horizontal surface at a slope of twenty to one for a horizontal distance of 4,000 feet.
6. “Hazard to air navigation” means an obstruction determined to have a substantial adverse affect on the safe and efficient utilization of the navigable airspace.
7. “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.
8. “Horizontal surface” means a horizontal plane one hundred fifty feet above the established airport elevation, the perimeter of which in plan coincides with the perimeter of the horizontal zone.
9. “Larger than utility runway” means a runway that is constructed for and intended to be used by propeller-driven aircraft of greater than twelve thousand five hundred pounds maximum gross weight and jet powered aircraft.
10. “Nonconforming use” means any pre-existing structure, object of natural growth, or use of land which is inconsistent with the provisions of this chapter or an amendment thereto.
11. “Non-precision 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 non-precision instrument approach procedure has been approved or planned.
12. “Obstruction” means any structure, growth, or other object, including mobile object, which exceeds a limiting height set forth in Section 201.04 of this chapter.
13. “Person” means an individual, firm, partnership, corporation, company, association, joint stock association or government entity; includes a trustee, a receiver, an assignee, or a similar representative of any of them.
14. “Precision instrument runway” means 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.
15. “Primary surface” means a surface longitudinally centered in 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 the end of that runway. The width of the primary surface is set forth in Section 201.03 of this chapter. The elevation of any point on the primary surface is the same as the elevation of the nearest point on the runway centerline.
16. “Runway” means a defined area on an airport prepared for landing and take-off of aircraft along its length.
17. “Structure” means an object, including a mobile object, constructed or installed by man, including, but not limited to, building, towers, cranes, smokestacks, earth formation, and overhead transmission lines.
18. “Transitional surfaces” means surfaces that extend outward at ninety-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 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 ninety-degree angles to the extended runway centerline.
19. “Tree” means any object of natural growth.
20. “Utility runway” means a runway that is constructed for and intended to be used by propeller-driven aircraft of 12,500 pounds maximum gross weight and less.
21. “Visual runway” means a runway intended solely for the operation of aircraft using visual approach procedures.
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