The following words and phrases, for purposes
of this article only, shall have the meanings given to them in this
section, unless the context clearly indicates otherwise:
AIRCRAFT
Any contrivance, except an unpowered hang glider or parachute,
used for manned ascent into or flight through the air.
AIRPORT
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 heliports.
Public and private airports are defined separately in this section.
AIRPORT ELEVATION
Five hundred fifteen feet mean elevation in the case of the
Carlisle Airport; defined as the highest point of land which obstructs
the airspace required for flight of aircraft in landing or taking
off at an airport or is otherwise hazardous as defined by "airport
hazard" in 74 Pa.C.S.A. § 5102.
AIRPORT HAZARD AREA
Any area of land or water upon which an airport hazard might
be established if not prevented as provided for in this article and
Act 164 of 1984 (Pennsylvania laws relating to aviation).
APPROACH SURFACE
A surface longitudinally centered on the extended runway center line, extending outward and upward from the end of the primary surface and at the same slope as the approach surface zone height limitation slope set forth in §
255-166 of this article. In plan, the perimeter of the approach surface coincides with the perimeter of the approach surface zone.
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.
DEPARTMENT
The Pennsylvania Department of Transportation.
FAA
The Federal Aviation Administration of the United States
Department of Transportation.
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 surface zone.
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 and jet-powered aircraft.
NONCONFORMING-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 non-precision-instrument
approach procedure has been approved or planned.
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 §
255-166 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.
PRECISION-INSTRUMENT RUNWAY
A runway having an existing instrument approach procedure
utilizing an instrument landing system (ILS) or a precision approach
radar (PAR). It also means a runway for which a precision approach
system is planned and is so indicated on an approved airport layout
plan or any other planning document.
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 §
255-166 of this article. The elevation of any point on primary surface is the same as the elevation of the nearest point on the runway center line.
PRIVATE AIRPORT
An 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.
PUBLIC AIRPORT
An airport which is either publicly or privately owned and
which is open to the public, as defined in 74 Pa.C.S.A. § 5102.
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.
TRANSITIONAL SURFACES
These surfaces extend outward at ninety-degree 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. Transitional surfaces for those portions of
the precision approach surfaces, 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
ninety-degree angles to the extended runway center line.
TREE
Any object of natural growth.
UTILITY RUNWAY
A runway that is constructed for and intended to be used
by propeller-driven aircraft of 12,500 pounds' maximum gross weight
or less.
VISUAL RUNWAY
A runway intended solely for the operation of aircraft using
approach procedures.
In order to carry out the provisions of this article, there are hereby created and established certain zones, to the extent they are in the Borough of Carlisle, which include all of the land lying beneath the approach surfaces, transitional surfaces, horizontal surfaces and conical surfaces as they apply to the Carlisle Airport. Such zones are shown on the Borough of Carlisle Height Limitation and Zoning District Map prepared by the Pennsylvania Department of Transportation, Bureau of Aviation, and dated 1989, which is hereby
attached to this chapter 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 more-restrictive height
limitation. The various zones are hereby established and defined as
follows:
A. Conical Surface Zone. Established beneath the conical
surface. This zone commences at the periphery of the horizontal surface
and extends outward therefrom a horizontal distance of 4,000 feet.
B. Horizontal Surface Zone. Established beneath the horizontal
surface, 150 feet above the established airport elevation, the perimeter
of which is constructed 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
surface zone does not include the approach surface and transitional
surface zones.
C. Precision-Instrument Runway-Approach Surface Zone.
Established beneath the precision instrument approach surface. The
inner edge of this zone coincides with the width of the primary surface
and is 1,000 feet wide. The zone expands outward uniformly to a width
of 16,000 feet at a horizontal distance of 50,000 feet from the primary
surface. Its center line is the continuation of the center line of
the runway.
D. Runway Larger Than Utility-Visual-Approach Surface
Zone. Established beneath the visual approach surface. The inner edge
of this zone coincides with the width of the primary surface and is
500 feet wide. The zone expands outward uniformly to a width of 1,500
feet at a horizontal distance of 5,000 feet from the primary surface.
Its center line is the continuation of the center line of the runway.
E. Runway Larger Than Utility With a Visibility Minimum
As Low As Three-Fourths-Mile Non-Precision-Instrument-Approach Surface
Zone. Established beneath the non-precision-instrument approach surface.
The inner edge of this zone coincides with the width of the primary
surface and is 1,000 feet wide. The zone expands outward uniformly
to a width of 4,000 feet at a horizontal distance of 10,000 feet from
the primary surface. Its center line is the continuation of the center
line of the runway.
F. Runway Larger Than Utility With a Visibility Minimum
Greater Than Three-Fourths-Mile Non-Precision-Instrument-Approach
Surface Zone. Established beneath the non-precision-instrument approach
surface. The inner edge of this zone coincides with the width of the
primary surface and is 500 feet wide. The zone expands outward uniformly
to a width of 1,500 feet at a horizontal distance of 5,000 feet from
the primary surface. Its center line is the continuance of the center
line of the runway.
G. Transitional Surface Zones. Established beneath the
transitional surfaces adjacent to each runway and approach surface
as indicated on the Height Limitation and Zoning District Map.
H. Utility Runway Non-Precision-Instrument-Approach Surface
Zone. Established beneath the non-precision instrument approach surface.
The inner edge of this zone coincides with the width of the primary
surface and is 500 feet wide. The zone expands uniformly to a width
of 2,000 feet at horizontal distance 5,000 feet from the primary surface.
Its center line is the continuation of the center line of the runway.
I. Utility Runway Visual-Approach Surface Zone. Established
beneath the visual approach surface. The inner edge of this zone coincides
with the width of the primary surface and is 250 feet wide. The zone
expands outward uniformly to a width of 1,250 feet at a horizontal
distance of 5,000 feet from the primary surface. Its center line is
the continuation of the center line of the runway.
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.
A. Such applicable height limitations are hereby established
for each of the zones in question as follows:
(1)
Conical Surface Zone. Slopes 20 feet outward
for each foot upward beginning at the periphery of the horizontal
surface and at 150 feet above the established airport elevation and
extending to a height of 350 feet above the established airport elevation
or at a height of 865 feet above mean sea level.
(2)
Horizontal Surface Zone. Established at 150
feet above the established airport elevation or at a height of 665
feet above mean sea level, in the case of the Carlisle Airport.
(3)
Precision-Instrument Runway-Approach Surface
Zone. Slopes 50 feet outward for each foot upward beginning at the
same elevation as the primary surface and extending to a horizontal
distance of 10,000 feet along the extended runway center line; thence
slopes upward 40 feet horizontally for each foot vertically to an
additional horizontal distance of 40,000 feet along the extended runway
center line.
(4)
Runway Larger Than Utility-Visual-Approach Surface
Zone. Slopes 20 feet outward for each foot upward beginning at the
end of and at the same elevation as the primary surface and extending
to a horizontal distance of 5,000 feet along the extended runway center
line.
(5)
Runway Larger Than Utility With a Visibility
Minimum as Low as Three-Fourths-Mile Non-Precision-Instrument-Approach
Surface Zone. Slopes 34 feet outward for each foot upward beginning
at the end of and at the same elevation as the primary surface and
extending to a horizontal distance of 10,000 feet along the extended
runway center line.
(6)
Runway Larger Than Utility With a Visibility
Minimum Greater Than Three-Fourths-Mile Non-Precision-Instrument-Approach
Surface Zone. Slopes 34 feet outward for each foot upward beginning
at the end of and at the same elevation as the primary surface and
extending to a horizontal distance of 10,000 feet along the extended
runway center line.
(7)
Transitional Surface Zone. Slopes seven feet
outward for each foot upward beginning at the sides of and at the
same elevation as the primary surface and the approach surface and
extending to a height of 150 feet above the airport elevation, which
is 515 feet above mean sea level in the case of the Carlisle Airport.
In addition to the foregoing, when an airport has a precision-instrument
runway-approach zone, there are established height limits sloping
seven feet outward for each foot upward beginning at the sides of
and at the same elevation as the approach surface and extending to
where they intersect the conical surface. Where the precision-instrument
runway-approach zone projects beyond the conical zone, there are established
height limits sloping seven feet outward for each foot upward beginning
at the sides of and at the same elevation as the approach surface
and extending a horizontal distance of 5,000 feet measured at ninety-degree
angles to the extended runway center line.
(8)
Utility Runway Non-Precision-Instrument-Approach
Surface Zone. Slopes 20 feet outward for each foot upward beginning
at the end of and at the same elevation as the primary surface and
extending to a horizontal distance of 5,000 feet along the extended
runway center line.
(9)
Utility Runway Visual-Approach Surface Zone.
Slopes 20 feet outward for each foot upward beginning at the end of
and at the same elevation as the primary surface and extending to
a horizontal distance of 5,000 feet along the extended runway center
line.
B. 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 40 feet above
the surface of the land.
The APT Airport District shall be an overlay
zoning district to the existing zoning districts. All of the provisions
of the underlying zoning districts shall remain in full force, except
that these additional procedures and requirements of this article
also apply. In the event of conflict between the regulations of this
article and any other regulations applicable to the same area, whether
the conflict be with respect to the height of structures or trees,
the use of land or any other matter, and whether the other regulations
were adopted in this chapter, in another chapter, by some other municipality,
by the state or federal government or otherwise, the more stringent
limitation or requirement shall govern and prevail.
For the purpose of Section 5917 of the Act of
October 10, 1984, P.L. 837, No. 164, 74 Pa.C.S.A. § 5101
et seq., the Carlisle Zoning Hearing Board is appointed as the Board
of Appeals, to hear and decide appeals, special exceptions and requests
for variances pursuant to this article.