§ 2. Definitions.

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

(1)

AIRPORT—The Russellville Municipal Airport.

(2)

AIRPORT ELEVATION—The established elevation of the highest point on the usable landing area measured in feet from mean sea level. For the Russellville Municipal Airport, this value is 719 feet MSL.

(3)

AIRPORT HAZARD—Any structure or tree or use of land which obstructs the air space required for the flight of aircraft or which obstructs or interferes with the control or tracking and/or 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; hazardous, 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.

(4)

AIRPORT HAZARD AREA—Any area of land or water upon which an airport hazard might be established if not prevented as provided in this Ordinance.

(5)

AIRPORT REFERENCE POINT (ULTIMATE)—The point established as the approximate geographic center of the airport landing area and so designated. For the Russellville Municipal Airport, this point is defined as Latitude N34 degrees, 27 minutes, 47.950 seconds, and Longitude W87 degrees, 42 minutes, 25.437 seconds.

(6)

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 4 of this Ordinance. In plan the perimeter of the approach surface coincides with the perimeter of the approach zone.

(7)

APPROACH, TRANSITIONAL, HORIZONTAL, AND CONICAL ZONES—These zones are set forth in Section 3 of this Ordinance.

(8)

CONICAL SURFACE—A surface extending outward and upward from the periphery of the horizontal surface at a slope of 20:1 for a horizontal distance of 820 feet.

(9)

HAZARD TO AIR NAVIGATION—An obstruction determined to have a substantial adverse effect on the safe and efficient utilization of the navigable airspace.

(10)

HEIGHT—For the purpose of determining the height limits all zones set forth in this Ordinance and shown on the zoning map, the datum shall be mean sea level elevation unless otherwise specified.

(11)

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.

(12)

LANDING AREA—The surface area of the airport used for the landing, takeoff, or taxiing of aircraft.

(13)

NONCONFORMING USE—Any pre-existing structure, object of natural growth, or use of land which is inconsistent with the provisions of this Ordinance or an amendment thereto.

(14)

NONPRECISION INSTRUMENT RUNWAY—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.

(15)

OBSTRUCTION—Any structure, growth, or other object, including a mobile object, which exceeds a limiting height set forth in Section 4 of this Ordinance.

(16)

PERSON—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.

(17)

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.

(18)

PRIMARY SURFACE—A rectangular surface longitudinally aligned with the runway and defined by the largest rectangular area definable containing the runway within the Russellville Municipal Airport property boundaries. For Runway 01-19 at the Russellville Municipal Airport, a 5,500 foot long Runway with a non-precision instrument approach on Runway Ends 01 and 19 with visibility minimums greater than one mile, the Primary Surface is a rectangular area 500 feet in width (east-west orientation) and 5,900 feet in length (north-south orientation). The elevation of any point on the primary surface is the same as the elevation of the nearest point on the runway centerline.

(19)

RUNWAY—A defined area on an airport prepared for landing and take-off of aircraft along its length.

(20)

RUSSELLVILLE MUNICIPAL AIRPORT ZONING COMMISSION—The Russellville Municipal Airport Zoning Commission shall be the Russellville Municipal Airport Board.

(21)

STRUCTURE—An object, including a mobile object, constructed or installed by man, including, but not limited to, buildings, towers, cranes, smokestacks, earth formations, and overhead transmission lines.

(22)

TRANSITIONAL SURFACES—These surfaces extend outward and upward at ninety (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.

(23)

TREE—Any object of natural growth.

(24)

VISUAL RUNWAY—A runway intended solely for the operation of aircraft using visual approach procedures.

(25)

UTILITY RUNWAY—A runway that is constructed for and intended to be used by propeller driven aircraft 12,500 pounds maximum gross weight and less.