As used in this article, the following terms
shall have the meaning indicated unless the context otherwise requires:
AIRPORT ELEVATION
The highest point of an airport's usable landing area measured
in feet from sea level.
CONICAL SURFACE
A 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 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 article and shown on the 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 plan coincides with the perimeter
of the horizontal zone.
NONCONFORMING USE
Any preexisting structure, object of natural growth or use
of land which is inconsistent with the provisions of this article
or an amendment thereto.
OBSTRUCTION
Any structure, growth or other object, including a mobile object, which exceeds a limiting height set forth in §
300-166 of this article.
PERSON
An 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 SURFACE
A surface longitudinally centered on a runway. The width of the primary surface extends 200 feet beyond each end of the runway. The width of the primary surface is set forth in §
300-165 of this article. The elevation of any point on the primary surface is the same as the elevation of the nearest point on the runway center line.
RUNWAY
A defined area on 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 formation and overhead transmission lines.
TREE
Any object of natural growth.
In order to carry out the provisions of this
article, there are hereby created and established certain zones within
the Borough of Chambersburg which include all of the land lying beneath
portions of the horizontal surfaces and conical surfaces as they apply
to Franklin County Regional Airport. Such zones are shown on the Airport
Hazard Overlay Zoning Map consisting of one sheet, prepared by Buchart-Horn,
Inc., titled "Airport Action Plan - Part 77 Surfaces Drawing, Project
No. 75648-50," dated June 2005 which is attached to this article and
made a part hereof. An area located in more than one of the following zones
is considered to be only in the zone with the more restrictive height
limitation. The various zones are hereby established and defined as
follows:
A. Horizontal zone. The horizontal zone is established
by swinging arcs of 5,000 feet radii from the center of each end of
the primary surface of each runway and connecting the adjacent arcs
by drawing lines tangent to those arcs. The horizontal zone does not
include the approach and transitional zones.
B. Conical zone. The conical zone is established as the
area that commences at the periphery of the horizontal zone and extends
outward therefrom a horizontal distance of 4,000 feet.
Except as otherwise provided in this article,
no structure shall be erected, altered or maintained, and no tree
shall be allowed to grow in any zone created by this article to a
height in excess of the applicable height limit herein established
for such zone. Such applicable height limitations are hereby established
for each of the zones in question as follows:
A. Horizontal zone. Established at 150 feet above the
airport elevation or at a height of 837.5 feet above mean sea level.
B. Conical zone. Slopes 20 feet outward for each foot
upward beginning at the periphery of the horizontal zone and at 150
feet above the airport elevation and extending to a height of 350
feet above the airport elevation.
C. Excepted height limitations. Nothing in this article
shall be construed as prohibiting the construction or maintenance
of any structure or growth of any tree to a height up to 30 feet above
the surface of the land.
Notwithstanding any other provisions of this
article, no use may be made of land or water within any zone established
by this article in such a manner as to create electrical interference
with navigational signals or radio communication between the airport
and aircraft, make it difficult for pilots to distinguish between
airport lights and others, result in glare in the eyes of pilots using
the airport, impair visibility in the vicinity of the airport, create
bird strike hazards or otherwise in any way endanger or interfere
with the landing, takeoff or maneuvering of aircraft intending to
use the airport.
Where there exists a conflict between any of
the regulations or limitations prescribed in this article and any
other regulations applicable to the same area, whether the conflict
be with respect to the height of structures or trees, and the use
of land, or any other matter, the more stringent limitation or requirement
shall govern and prevail.