[Ord. 766, 5/16/1996, § 18.0]
The following words and phrases, for the purposes of this Part only, shall have the meaning given to them in this Section, unless the context clearly indicates otherwise:
AIRCRAFT
Any contrivance, except an unpowered hang glider or parachute, used for manned ascent into or flight through the air.
AIRPORT
Any area of land or water which is used of intended to be used for the landing and takeoff of aircraft and any appurtenant areas which are used or intended to be used for airport buildings or air navigation facilities or rights-of-way, together with all airport buildings and facilities thereon. As used herein, the term airport includes public airports but excludes private airports and heliports. Public and private airports are defined separately in this section.
AIRPORT ELEVATION
310 feet mean elevation in the case of the Harrisburg International Airport; defined as the highest point of land which obstructs the airspace required for flight of aircraft in landing or taking off at an airport or is otherwise hazardous as defined by Act 164 of 1985.
AIRPORT HAZARD AREA
Any area of land or water upon which an airport hazard might be established if not prevented as provided for in this Part and Act 164 of 1984.
APPROACH SURFACE
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 surface zone height limitation slope set forth in this Part. In plan, the perimeter of the approach surface coincides with the perimeter of the approach surface zone.
APPROACH, TRANSITIONAL, HORIZONTAL AND CONICAL SURFACE ZONES
These zones are set forth in this Part.
BOARD OF APPEALS OR ADJUSTMENT
The Borough of Elizabethtown Zoning Hearing Board.
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 4,000 feet.
DEPARTMENT
The Pennsylvania Department of Transportation.
FAA
The Federal Aviation Administration of the United States Department of Transportation.
HEIGHT
For the purpose of determining the height limits in all zones set forth in this Part and shown on the Zoning Map, the datum shall be mean sea level elevation, unless otherwise specified.
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 surface zone.
LARGER-THAN-UTILITY RUNWAY
A runway that is constructed for the intended to be used by propeller-driven aircraft of greater than 12,500 pounds maximum gross weight and jet-powered aircraft.
NONCONFORMING 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.
NONCONFORMING USE
Any preexisting structure, object of natural growth or use of land which is inconsistent with the provisions of this Part or an amendment thereto.
OBSTRUCTION
Any structure, growth or other object, including a mobile object, which exceeds a limiting height set forth in this Part.
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 this Part. The elevation of any point on the primary surface is the same as the elevation of the nearest point on the runway center line.
PRIVATE AIRPORT
An airport which is privately owned and which is not open or intended to be open to the public as defined by State or Federal law.
PUBLIC AIRPORT
An airport which is either publicly or privately owned and which is open to the public, as defined by State or Federal law.
RUNWAY
A defined area on an airport prepared for landing and takeoff of aircraft along its length.
STRUCTURE
An object, including a 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° angles to the runway center line and the runway center line 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. Transitional surfaces for these 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° angles to the extended runway center line.
TREE
Any object of natural growth.
UTILITY RUNWAY
A runway that is constructed for an intended to be used by propeller driven aircraft of 12,500 pounds' maximum gross weight or less.
VISUAL RUNWAY
A runway intended solely for the operation of aircraft using approach procedures.