[Ord. 565, 11/17/1986]
As used in this Chapter, unless the context otherwise requires, the following terms shall have the meanings indicated:
AIRPORTPenn Valley Airport, Snyder County, Pennsylvania.
AIRPORT ELEVATIONThe highest point of an airport’s usable landing area measured in feet from sea level.
APPROACH SURFACEA 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 §
27-1803 of this Chapter. In plan, the perimeter of the approach surface coincides with the perimeter of the approach zone.
CONICAL SURFACEA 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.
HAZARD TO AIR NAVIGATIONAn obstruction determined to have a substantial adverse effect on the safe and efficient utilization of the navigable airspace.
HEIGHTFor 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.
HORIZONTAL SURFACEA horizontal plane 150 feet above the established airport elevation, the perimeter of which, in plan, coincides with the perimeter of the horizontal plane.
NONCONFORMING STRUCTUREAny preexisting structure or object of natural growth which is inconsistent with the provisions of this Chapter or an amendment thereto.
NONPRECISION INSTRUMENT RUNWAYA 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.
OBSTRUCTIONAny structure, growth or other object, including a mobile object, which exceeds a limiting height set forth in §
27-1803 of this Chapter.
PERSONAn 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.
PRIMARY SURFACEA 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. The width of the primary surface is set forth in §
27-1802 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 center line.
RUNWAYA defined area on an airport prepared for landing and takeoff of aircraft along its length.
STRUCTUREAn 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 SURFACESThese 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.
TREEAny object of natural growth.
UTILITY RUNWAYA runway that is constructed for and intended to be used for aircraft of 12,500 pounds maximum gross weight and less.
VISUAL RUNWAYA runway intended solely for the operation of aircraft using visual approach procedures.