[Ord. 1-1993, 12/20/1993; as amended by Ord. 1-2011, 2/21/2011]
The following words and phrases, when used in this Part, shall have the meanings given to them in this section, unless the context clearly indicates otherwise:
ABANDONED
Any structure or object of natural growth that is given up and substantially unused for its permissible purpose, with no apparent intent of the owner to return to, reclaim, or use the structure or object of natural growth.
AIRCRAFT
Any contrivance, except an unpowered hang glider or parachute, used for manned ascent into or flight through the air.
AIRPORT (DECK AIRPORT)
Any area of land or water which is used, or 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 building and facilities thereon. As used herein, the term "airport" includes public airports but excludes private airports or heliports. Public and private airports are defined separately in this section.
AIRPORT ELEVATION
The highest point of an airport's usable landing area, measured in feet above sea level. The airport elevation of Deck Airport is 515 feet above sea level.
AIRPORT HAZARD
Any structure or object, natural or man-made, or use of land which obstructs the airspace required for flight or aircraft in landing or taking off at an airport or is otherwise hazardous, as defined in 74 Pa.C.S.A. § 5102 and 14 CFR Part 77.
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 (Pennsylvania laws relating to aviation).
APPROACH SURFACE (ZONE)
An imaginary surface longitudinally centered on the extended runway center line and extending outward and upward from each end of the primary surface. An approach surface is applied to each end of the runway based on the planned approach. The inner edge of the approach surface is the same width as the primary surface and expands uniformly depending on the planned approach. The Approach Surface Zone, as shown on Figure 1, is derived from the approach surface.[1]
BOARD OF APPEALS OR ADJUSTMENT
A board appointed by the authority adopting these regulations. The number of members, powers, governing rules, etc., of the Board are set forth in § 27-2810 of this Part. "Joint Airport Zoning Board" is defined in § 27-2811.
CONICAL SURFACE (ZONE)
An imaginary surface extending outward and upward from the periphery of the horizontal surface at a slope of 20 feet horizontally to one foot vertically for a horizontal distance of 4,000 feet. The Conical Surface Zone, as shown on Figure 1, is based on the conical surface.[2]
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 (ZONE)
An imaginary plane 150 feet above the established airport elevation that is constructed by swinging arcs of various radii from the center of the end of the primary surface and then connecting the adjacent arc by tangent lines. The radius of each arc is based on the planned approach. The Horizontal Surface Zone, as shown on Figure 1, is derived from the horizontal surface.[3]
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.
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.
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.
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, and 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 precisions 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 (ZONE)
An imaginary surface longitudinally centered on the runway, extending 200 feet beyond the end of paved runways or ending at each end of turf runways. The elevation of any point on the primary surface is the same as the elevation of the nearest point on the runway center line. The Primary Surface Zone, as shown on Figure 1, is derived from the primary surface.[4]
PRIVATE AIRPORT
An airport which is privately owned and which is not open or intended to be open to the public as defined in 75 Pa.C.S.A. § 5102.
PUBLIC AIRPORT
An airport which is either publicly or privately owned and which is open to the public as defined in 75 Pa.C.S.A. § 5102.
RUNWAY
A defined area of 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 formations and overhead transmission lines.
TRANSITIONAL SURFACE (ZONE)
An imaginary surface that extends outward and upward from the edge of the primary surface to the horizontal surface at a slope of seven feet horizontally to one-foot vertically (7:1). The Transitional Surface Zone, as shown on Figure 1, is derived from the transitional surface.[5]
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 or less.
VISUAL RUNWAY
A runway intended solely for the operation of aircraft using visual approach procedures.