Code of Maryland Regulations › Title 11 - DEPARTMENT OF TRANSPORTATION › Subtitle 03 - MARYLAND AVIATION ADMINISTRATION › Chapter 11.03.05 - Obstructions to Air Navigation › Section 11.03.05.01 - Definitions

Current through Register Vol. 51, No. 14, July 12, 2024
A. As used in these
				regulations, the following terms have the meanings indicated unless the context
				requires otherwise. Words not specifically defined that relate to aeronautical
				practices, processes, and equipment shall be construed according to their
				general usage in the aviation industry.
B. Terms Defined.
(1) "Administration" means the Maryland
				Aviation Administration of the Maryland Department of Transportation,
				established pursuant to Transportation Article, §
										2-102(b)(2),
				Annotated Code of Maryland.
(2)
				Repealed.
(3) "Airport" means a
				public use airport licensed by the Administration or owned or operated, or
				both, by a public entity of Maryland and used by fixed wing aircraft.
(4) "Airport obstruction zone" means all land
				within a 3 nautical mile radius of the established reference point of an
				airport.
(5) "Established airport
				elevation" means the highest point of an airport's usable runways measured in
				feet from mean sea level.
(6)
				"Established reference point" means the center of the longest runway existing
				or planned at the time of the initial adoption of an airport obstruction
				program, and if changed at a later date, means the center of the longest runway
				existing as a result of the change.
(7) "Hazard" means any object which affects
				the area available for landing, take-off, and maneuvering of aircraft, thus
				tending to impair or destroy the utility of an airport and present a potential
				danger to users of the airport and residents of the area.
(8) "Imaginary surfaces" means a series of
				planes or curved surfaces placed at various angles or arcs in relation to an
				airport's runways and based on a runway's classification and most precise
				available or planned aircraft approach path, more fully described in Regulation
				.04D of this chapter.
(9) "Nautical
				mile" means a distance of 6,076 consecutive linear feet.
(10) "Non-conforming use" means any
				preexisting object or use of land which is inconsistent with the provisions of
				the airport's obstruction standards described in Regulation .04 of this
				chapter.
(11) "Non-precision
				instrument approach" means an instrument approach procedure using air
				navigation facilities with horizontal guidance only.
(12) "Object" means tangible personal
				property or real property, including vegetation and terrain features.
(13) "Obstruction" means an object that
				penetrates any imaginary surface taking precedence as defined in these
				regulations.
(14) "Personalty"
				means any personal property.
(15)
				"Precision instrument approach" means an instrument approach procedure using an
				instrument landing system or a precision approach radar system which provides
				horizontal and vertical guidance for landing on a runway.
(16) "Public-use airport" means any airport,
				whether publicly or privately owned, at which the owner or persons having a
				right of access and control invite, encourage, or allow flight operations by
				the public without the need for prior permission.
(17) "Runway" means any existing or planned
				hard surface or turf covered area of an airport which is specifically
				designated and used or planned to be used for takeoff or landing of
				aircraft.
18) "Slope" means an
				incline from the horizontal expressed in an arithmetic ratio or horizontal
				distance to vertical distance.
For example: Slope = 4:1 4 feet horizontal for each vertical
				  foot distance.
(19)
				"Statute mile" means a distance of 5,280 consecutive linear feet.
(20) "Substantial alteration" means any
				change in an object which results in a modification of the dimensions of that
				object.
(21) "Utility runway" means
				a runway constructed for or intended to be used by propeller-driven aircraft of
				12,500 pounds or less (maximum gross weight).
(22) "Visual runway" means a runway intended
				solely for the operation of aircraft using visual approach procedures, as
				indicated on an airport layout plan (ALP).