Appendix A. GLOSSARY OF TERMS AND DEFINITIONS

For the purposes of these Regulations, certain words or terms are defined specifically and are intended to have the definition, meaning and intent set forth as follows:

a.

Airport. The Beaufort/Michael J. Smith Field (MRH) formerly and still referred to from time to time as the Beaufort-Morehead City Airport.

b.

Airport Elevation. The highest point of the Airport's usable landing area measured in feet from mean sea level, or for the purpose of these Regulations, 11 feet above mean sea level.

c.

Approach Surface. A surface longitudinally centered on the extended Runway centerline, extended 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 Section 5 of this Appendix. In plan, the perimeter of the approach surface coincides with the perimeter of the approach zone.

d.

Airport Hazard. Any structure or object of natural growth located on or in the vicinity of the Airport which obstructs the air space required for the flight of aircraft in landing or taking off at the Airport or is otherwise hazardous to such landing or taking off of Aircraft.

e.

Approach/Transitional, Horizontal and Conical Zones. These zones apply to the areas under the approach, transitional, horizontal and conical surfaces defined in Federal Aviation Regulations (FAR) Part 77, incorporated herein by reference. Additionally, these zones are set forth in Section 4 hereafter.

f.

Conical Surface. A surface extending outward and upward from the periphery of the horizontal surface at a slope of 20 to 1 for a horizontal distance of 4,000 feet.

g.

Hazard to Air Navigation. An obstruction determined to have a substantial adverse effect on the safe and efficient utilization of the navigable airspace.

h.

Height. For the purpose of determining the height limits in all zones and areas set forth in these Regulations and as shown on the map referenced above, height shall be in reference to sea level elevation as the same pertains to the highest point of the structure or natural object, unless otherwise specified. Height is the vertical distance measured from the average ground elevation to the highest point of the structure or natural object when measured with reference to mean sea level, and height shall mean the highest point of the structure or the natural object. In calculating height, antennae, steeples, chimneys, parapets, equipment and the like shall be included.

i.

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 as well as jet powered aircraft. For purposes of these Regulations, Runways 8 and 26 are designated "larger than utility runways."

j.

Non-Conforming Use. Any pre-existing structure or object of natural growth which is inconsistent with the provisions of these Regulations, or any amendment thereto.

k.

Non Precision Instrument Runway. A runway having an existing instrument approach procedure utilizing air navigation facilities with only horizontal guidance, or area type navigational equipment for which a straight-in non precision instrument approach procedure has been approved or planned for which non precision approach facilities are planned or indicated on a FAA planning document. For purposes of these Regulations, Runways 14, 21 and 26 are designated non precision instrument runways.

l.

Person. An individual, firm, partnership, corporation, company, association, joint stock association or governmental entity. It also includes a trustee, receiver, assignee or similar representative of any of them.

m.

Obstruction. Any structure, growth or other object, including a mobile object, which exceeds the height limitations set forth in these Regulations.

n.

Precision Instrument Runway. A runway having an existing instrument approach procedure utilizing an instrument landing system (ILS) or a precision approach radar (PAR). This term also means a runway for which a precision approach system is planned and is so indicated on an FAA approved airport layout plan or other planning document. For purposes of these Regulations, Runway 26 has been designated a precision instrument runway.

o.

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, but 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 of a runway is prescribed in Part 77 of the Federal Aviation Regulations (FAR) for the most precise approach existing or planned for either end of that runway. For purposes of these Regulations, the width of the primary surface is set forth in Section 4 of this Appendix. The elevation of any point on the primary surface is the same as the elevation of the nearest point on the runway center line.

p.

Runway. A defined area on an airport prepared for landing and takeoff of aircraft along its length. For purposes of these Regulations, the Beaufort/Michael J. Smith Field has Runways 3, 8, 14, 21, 26 and 32.

q.

Structure. An object constructed or installed by man, including, but without limitation, buildings, towers, smokestacks, earth formations, overhead transmission lines, and moving or mobile objects such as cranes, boats, and the like.

r.

Transitional Surfaces. Surfaces which extend outward at 90 degree angles to the runway center line and the runway center line extended at a slope of 7 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 surfaces, which project through and beyond limits of the conical surface, extend a distance of 5,000 feet measured horizontally from the edge of the approach surface and at 90 degree angles to the extended runway center line.

s.

Tree. Any object of natural growth.

t.

Utility Runway. A runway that is constructed for and intended to be used by propeller driven aircraft of 12,500 pounds maximum gross weight and less. For purposes of these Regulations, Runways 3, 21, 14 and 32 are designated utility runways.

u.

Visual Runway. A runway intended solely for the operation of aircraft using visual approach procedures. For purposes of these Regulations, Runways 3, 8 and 32 are designated visual runways.