Airport hazard regulations definitions. In addition to the definitions in Article
II, Definitions, of this chapter, and for the purposes of this section, the terms, words, and phrases found hereunder shall have the following meanings as applied, and limited to, §
186-130, Airport hazard regulations.
AIRPORT Pennridge Airport (CKZ); 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 buildings and facilities thereon. As used herein, the term "airport" includes public airports but excludes private airports and private heliports.
(1) PRIVATE AIRPORTAn airport which is privately owned and which is not open or intended to be open to the public as defined in 74 Pa.C.S.A. § 5102.
(2) PUBLIC AIRPORTAn airport which is either publicly or privately owned and which is open to the public as defined in 74 Pa.C.S.A. § 5102.
AIRPORT ELEVATION The highest point of the airport's useable landing area measured in feet from sea level which is 567 feet above mean sea level.
AIRPORT HAZARD Any structure or object, natural or manmade, or use of land which obstructs the airspace required for flight of aircraft in landing or taking off at an airport or is otherwise hazardous to the landing or taking off of aircraft.
AIRPORT HAZARD AREA An area of land or water upon which an airport hazard might be established if not prevented as provided in this chapter.
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 height limitation slope set forth in §
186-130D. In plan, the perimeter of the approach surface coincides with the perimeter of the approach zone.
CONICAL SURFACE A surface extending outward and upward from the periphery of the horizontal surface at a slope of 20 to one 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 section and shown on the airport zone 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 zone.
LARGER THAN UTILITY RUNWAY A runway that is constructed or and intended to be used by propeller-driven aircraft of greater than 12,500 pounds maximum gross weight and jet-powered aircraft.
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 §
186-130D.
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 §
186-130C. 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 For the purpose of this section, 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 in addition to those objects defined in Article
II, Definitions.
TRANSITIONAL SURFACES These surfaces 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 primary and approach surfaces to where they intersect the horizontal and conical surfaces. Transitional surfaces, for those portions of the precision approach surface 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° to the extended runway centerline.
TREE Any object of natural growth.