Definitions. As used in this section, the following terms shall have the meanings indicated:
AIRPORT
Front Royal - Warren County Airport.
AIRPORT COMMISSION
Front Royal - Warren County Airport Commission.
AIRPORT ELEVATION
The highest point of an airport's usable landing area measured in feet from mean sea level. The Front Royal-Warren County Airport is 703.1 feet above mean sea level (MSL).
APPROACH SURFACE
A surface longitudinally centered on the runway center line extending at a slope of 20 feet horizontally for each foot vertically 20 to 1 from the end of the primary surface for a horizontal distance of 5,000 feet. The perimeter of the approach surface coincides with the perimeter of the Approach Zone.
CONICAL SURFACE
A surface extending at a slope of 20 feet horizontally for each foot vertically 20 to 1 from the periphery of the horizontal surface for a horizontal distance of 4,000 feet.
HAZARD TO AIR NAVIGATION
An obstruction determined to have an adverse effect on the safe and efficient utilization of the navigable airspace.
FOR THE PURPOSE OF DETERMINING THE HEIGHT LIMITS IN ALL ZONES SET FORTH IN THIS CHAPTER AND SHOWN ON THE FRONT ROYAL
Warren County Airport 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 plane coincides with the perimeter of the Horizontal Zone.
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 § 180-29D of this chapter.
PERSON
An individual, firm, partnership, corporation, company, association, joint-stock association or governmental entity. It includes a trustee, receiver, assignee or similar representative of any of them.
PRIMARY SURFACE
A surface longitudinally centered on a hard surfaced runway, 500 feet in width, extending 200 feet beyond each end of the runway. The elevation of any point on the primary surface is the same as the elevation of the nearest point on the runway center line.
A DEFINED AREA ON AN AIRPORT PREPARED FOR LANDING AND TAKEOFF OF AIRCRAFT ALONG ITS LENGTH. FOR THE PURPOSES OF THIS ARTICLE THE TERM "RUNWAY" SHALL MEAN THE THREE-THOUSAND-NINE-HUNDRED-FOOT EXTENDED RUNWAY AS SHOWN ON THE AIRPORT LAYOUT PLAN OF THE FRONT ROYAL
Warren County Airport Master Plan Study adopted February 8, 1983.
STRUCTURE
Any object, constructed or installed by man, including but not limited to buildings, antennas, towers, smokestacks, earth formation and overhead transmission lines.
TRANSITIONAL SURFACES
These surfaces extend outward at ninety-degree angles to the runway center line and extended at a slope of seven feet horizontally for each foot vertical from the sides of the primary and approach surfaces to intersect the horizontal and conical surfaces.
TREE
Any object of natural growth.
UTILITY RUNWAY
A runway as previously defined that is constructed for and intended to be used by propeller driven aircraft of 12,500 pounds maximum gross weight and less.
VISUAL RUNWAY
A runway as previously defined intended solely for the operation of aircraft using visual approach procedures.