International Standards for Rules of the Air Definitions Flashcards
Acrobatic flight
Manoeuvres intentionally performed by an aircraft involving an abrupt change in its attitude, an abnormal attitude, or an abnormal variation in speed.
AD S-C agreement
A reporting plan which establishes the conditions of ADS-C data reporting (i.e. data required by the air traffic services unit and frequency of ADS-C reports which have to be agreed to prior to using ADS-C In the provision of air traffic services).
Note - The terms of the agreement will be exchanged between the ground system and the aircraft by means of a contract, or a series of contracts
Advisory airspace.
An airspace of defined dimensions, or designated route, within which airtraffic advisory service is available.
Advisory route.
A designated route along which airtraffic advisory service is available.
Aerodrome.
defined area on land or water (including any buildings, installations and equipment) intended to be used either wholly or in part for the arrival, departure and surface movement of aircraft.
Aerodrome control service.
Air traffic control service for aerodrome traffic.
Aerodrome control tower.
A unit established to provide airtraffic control service to aerodrome traffic.
Aerodrome traffic.
All traffic on the manoeuvring area of an aerodrome and all aircraft flying In the vicinity of an aerodrome.
Note - An aircraft is In the vicinity of an aerodrome when it is in, entertng or leaving an aerodrome traffic circuit.
Aerodrome traffic zone.
An airspace of defined dimensions established around an aerodrome for the protection of aerodrome traffic.
Aerodrome information management (AIM).
The dynamic, integrated management of aeronautical information through the provision and exchange of quality-assured digital aeronautical data in collaboration with all parties.
Advisory route. A designated route along which airtraffic advisory service is available.
Aeronautical information Publication (AIP). A publication Issued by or with the authority of a State and containing aeronautical Information of a lasting character essential to air navigation.
Aeronautical station. A land station In the aeronautical mobile service. In certain instances, an aeronautical station may be located, for example, on board ship or on a platform at sea.
Aeroplane. A power-driven heavier-than-alr aircraft, deriving Its lift In flight chiefly from aerodynamic reactions on surfaces which remain fixed under given conditions of flight.
Airborne collision avoidance system (ACAS). An aircraft system based on secondary surveillance radar (SSR) transponder signals which operates independently of ground-based equipment to provide advice to the pilot on potential conflicting aircraft that are equipped with SSR transponders.
Aircraft Any machine that can derive support In the atmosphere from the reactions of the air other than the reactions of the air against the earth’s surface.
Air-ground control radio station. An aeronautical telecommunication station having primary responsibility for handling communications pertaining to the operation and control of aircraft In a given area
Air-taxing. Movement of a helicopter/VTOL above the surface of an aerodrome, normally In ground efTect and at a ground speed normally less than 37 km/h (20 kt).
Note - Tie actual height may vary, and some helicopters may require air-taxiing above 8 m (25 ft) AGL to reduce ground effect turbulence or provide clearance for cargo slingloads.
Air traffic.
All aircraft in flight or operating on the manoeuvring area of an aerodrome.
Air traff c advisory service. A service provided within advisory airspace to ensure separation, in so far as practical, between aircraft which are operating on IFR flight plans.
Air traffic control clearance. Authorization for an aircraft to proceed under conditions specified by an air traffic control unit.
Note 1.- For convenience, the term “air traffic control clearance’ Is frequently abbreviated to “clearance’ when used In approortate contexts.
Note 2.- The abbreviated term “clearance’ may be prefixed by the words “taxi’, “take-off, “departure”, “en route’, “approach” or “landing* to indicate the particular portion of flight to which the air traffic control clearance relates.
Air traffic control service.
A service provided for the purpose of:
a) preventing collisions
1) between aircraft and
2) on the manoeuvring area between aircraft and obstructions and
b) expediting and maintaining an orderly flow of air traffic.
Air traffic control unit. A generic term meaning variously, area control centre, approach control unit or aerodrome control tower.
Air traffic service (ATS). A generic term meaning variously, flight information service, alerting service, air traffic advisory service, air traffic control service (area control service, approach control service or aerodrome control service).
Air traffic services airspaces. Airspaces of defined dimensions, alphabetically designated, within which specific types of flights may operate and for which ATS and rules of operation are specified.
Note - ATS airspaces are classified as Class A to G.
Air traffic services reporting office. A unit established for the purpose of receiving reports concerning air traffic services and flight plans submitted before departure.
Note - An air traffic services reporting office may be established as a separate unit or combined with an existing unit, such as another air traffic services unit, or a unit of the aeronautical information service.
Air traffic services unit. A generic term meaning variously, air traffic control unit, flight Information centre or air traffic services reporting office
Airway. A control area or portion thereof established In the form of a corridor.
Alerting service. A service provided to notify appropriate organizations regarding aircraft In need of search and rescue aid, and assist such organizations as required.
Alternate aerodrome. An aerodrome to which an aircraft may proceed when It becomes either impossible or inadvisable to proceed to or to land at the aerodrome of intended landing where the necessary services and facilities are available, where aircraft performance requirements can be met and which Is operational at the expected time of use. Alternate aerodromes include the following
Take-off alternate. An alternate aerodrome at which an aircraft would be able to land should this become necessary shortly after take-off and It is not possible to use the aerodrome of departure.
En-route alternate. An alternate aerodrome at which an aircraft would be able to land In the event that a diversion becomes necessary while en route.
Destination alternate. An alternate aerodrome at which an aircraft would be able to land should It become either impossible or inadvisable to land at the aerodrome of Intended landing.
Note - The aerodrome from which a flight departs may also be an en-route or a destination alternate aerodrome for that flight.
Altitude. The vertical distance of a level, a point or an object considered as a point, measured from mean sea level (MSL).
Approach control service. Air traffic control service for arriving or departing controlled flights.
Approach control unit. A unit established to provide air traffic control service to controlled flights arriving at, or departing from, one or more aerodromes.
Appropriate ATS authority. The relevant authority designated by the State responsible for providing air traffic services In the airspace concerned.
Appropriate authority.
a) Regarding flight over the high seas: The relevant authority of the State of Registry.
b) Regarding flight other than over the high seas: The relevant authority of the State having sovereignty over the territory being overflown.
Apron. A defined area, on a land aerodrome, Intended to accommodate aircraft for purposes of loading or unloading passengers, mall or cargo, fuelling, parking or maintenance
Area control centre. A unit established to provide air traffic control service to controlled flights In control areas under its jurisdiction
Area control service. Air traffic control service for controlled flights In control areas
Area navigation (RNAV). A method of navigation which permits aircraft operation on any desired flight path within the coverage of ground- or space-based navigation aids or within the limits of the capability of self-contained aids, or a combination of these.
Note. - Area navigation includes performance-based navigation as well as other operations that do not meet the definition of performance-based navigation
ATS route. A specified route designed for channelling the flow of traffic as necessary for the provision of air traffic services.
Note 1. - The term “ATS route” Is used to mean variously, airway, advisory route, controlled or uncontrolled route, arrival or departure route, etc.
Note 2. - An ATS route Is defined by route specifications which Include an ATS route designator, the track to or from significant points (waypoints), distance between significant points, reporting requirements and, as determined by the appropriate ATS authority, the lowest safe altitude.
Automatic dependent surveillance - contract (ADS-C). A means by which the terms of an ADS-C agreement will be exchanged between the ground system and the aircraft, via a data link, specifying under what conditions ADS-C reports would be initiated, and what data would be contained in the reports.
Note. - The abbreviated term “ADS contract” is commonly used to refer to ADS event contract, ADS demand contract ADS periodic contract or an emergency mode.
Ceiling. The height above the ground or water of the base of the lowest layer of cloud below 6000 metres (20 000 feet) covering more than half the sky.
Changeover point The point at which an aircraft navigating on an ATS route segment defined by reference to very high frequency omnidirectional radio ranges Is expected to transfer Its primary navigational reference from the facility behind the aircraft to the next facility ahead of the aircraft.
Note. - Changeover points are established to provide the optimum balance in respect of signal strength and quality the same portion of a route segment
Clearance limit The point to which an aircraft Is granted an air traffic control clearance.
Command and control (C2) link. The data link between the remotely piloted aircraft and the remote pilot station for the purposes of managing the flight.
Control area. A controlled airspace extending upwards from a specified limit above the earth.