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Listen on a frequency without establishing two-way communication, maintaining awareness of transmissions
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Browse Basic ATC terms for pilots, air traffic controllers, cabin crew and aviation learners.
Listen on a frequency without establishing two-way communication, maintaining awareness of transmissions
View termAn instruction indicating that the aircraft is authorized to execute an approach procedure.
View termAn air traffic control instruction for an aircraft to taxi onto the runway and hold in position, awaiting takeoff clearance.
View termConfirmation that the aircraft has exited the runway.
View termAn instruction to exit the runway at the nearest suitable exit.
View termA phrase used by pilots to indicate they are prepared to begin the takeoff roll.
View termA phrase used by pilots to indicate they are prepared to receive and write down instructions or clearances.
View termA phrase used by pilots to indicate they are prepared to begin taxiing.
View termA phrase used by pilots to indicate they are prepared for the aircraft to be pushed back from the gate.
View termA phrase used to instruct the pilot to hasten a maneuver or action.
View termAn instruction to confirm that a message has been received and understood.
View termA standard radiotelephony term meaning 'Yes'; used to indicate a positive response to a question or instruction.
View termAn ATC instruction authorizing an aircraft to fly directly to a specified point, bypassing the previously assigned route or waypoints.
View termAn aborted landing approach, requiring the aircraft to climb and reattempt landing.
View termA phrase used to instruct the pilot to ensure a safe distance from other aircraft without ATC assistance.
View termInstruction to intercept and follow a specified route, airway, arrival procedure, or traffic pattern.
View termThe last leg of the approach path before landing.
View termAn instruction to align the aircraft with the final approach path for landing.
View termUsed by ATC to advise pilots of anticipated instructions or clearances, such as altitude changes or approach clearances, to assist with planning.
View termAn advisory indicating that the pilot should anticipate receiving radar vector instructions from ATC at a specified time, altitude, or fix, typically used to sequence traffic or guide aircraft to a specific point.
View termAn instruction indicating that further clearance will be provided at a specified time or location.
View termAn ATC instruction to proceed with the current action or phase of flight without change.
View termAn instruction to proceed with the instrument or visual approach but not yet cleared to land.
View termAn instruction to proceed with ground movement along a designated taxi route or surface without stopping or awaiting further clearance.
View termA procedure followed when a landing cannot be completed.
View termA standardised altitude expressed in hundreds of feet, based on a pressure setting of 1013.2 hPa.
View termA generic term used to denote a pilot's cleared vertical position, whether expressed as an altitude, flight level, or height.
View termAn explicit authorization by ATC for a pilot to proceed under specified conditions within controlled airspace.
View termATC clearance for the pilot to leave the current frequency, typically when no further communication is required on that frequency.
View termInstruction from ATC to switch radio communication from the current frequency to the aerodrome control tower frequency for landing or taxi clearance.
View termA designated area at an airport where passengers board or disembark from an aircraft.
View termThe flight path parallel to the landing runway in the opposite direction of landing.
View termThe physical features of the land that may pose a hazard to aircraft.
View termThe rate at which an aircraft is moving through the air, usually expressed in knots.
View termA phrase used to instruct the pilot to increase the aircraft's speed.
View termA phrase used to instruct the pilot to decrease the aircraft's speed.
View termTo maintain a specific position or altitude, often in a holding pattern.
View termAn instruction to maintain a specific position or altitude until further notice.
View termAn instruction to continue holding a specified altitude, heading, speed, or other parameter until further advised.
View termInstruction to the pilot to continue flying at the present assigned altitude.
View termAn instruction to continue on the magnetic heading of the runway after takeoff without turning, usually for departure sequencing or obstacle avoidance.
View termThe height of an aircraft above sea level, usually expressed in feet.
View termA specified altitude that an aircraft must not exceed or descend below.
View termA request to verify the current altitude of the aircraft.
View termThe value to which the scale of a pressure altimeter is set so as to indicate elevation or height. In ATC phraseology, this typically refers to the current QNH for a given location.
View termA function on the aircraft transponder that, when activated, causes the radar return to flash on the controller’s screen for identification.
View termAn instruction to terminate the Instrument Flight Rules flight plan.
View termA phrase used to instruct the pilot to continue flying under Instrument Flight Rules.
View termA phrase used to instruct the pilot to ignore the previous transmission.
View termAn instruction indicating that the aircraft is authorized to execute an Instrument Landing System approach.
View termAn instruction to enter the traffic circuit on the downwind leg, parallel to and opposite direction of landing runway.
View termInstruction to enter the circuit on the base leg, a perpendicular segment to final approach before landing.
View termA term used to describe operations conducted with reference to instruments.
View termPhrase used by pilots to indicate that they do not have visual contact with the reported traffic.
View termAn indication that the aircraft is no longer in a conflicting situation with another aircraft.
View termInstruction from ATC to switch communication to the ground control frequency, typically issued after landing or before taxi for departure.
View termATC instruction to switch radio communication to the departure controller, usually issued shortly after takeoff for enroute climb and navigation.
View termA 360-degree turn in the air to delay or maintain position.
View termThe direction in which the aircraft’s nose is pointed, expressed in degrees from magnetic north.
View termThe segment of the final approach path closest to the runway.
View termA phrase used to instruct the pilot to reduce speed.
View termAn instruction to change aircraft heading by initiating a left turn.
View termAn instruction to enter and follow a designated airway.
View termAn instruction to exit a designated airway.
View termA distress call indicating a life-threatening emergency requiring immediate assistance.
View termAn instruction for the pilot to provide specific information, such as position, altitude, or status, either once or at specified intervals.
View termAn instruction to notify ATC when a specified altitude or level has been attained.
View termAn instruction for the pilot to notify ATC when passing through a specific altitude or level.
View termAn instruction for the pilot to inform ATC when the aircraft is on the final approach segment, aligned with the runway centerline and descending for landing.
View termAn instruction for the pilot to inform ATC when the aircraft is established on a specified segment of the approach, typically the localizer or final approach course.
View termAn instruction to inform ATC when the aircraft has completely left the runway.
View termThe lowest speed at which an aircraft can fly in a clean configuration without deploying flaps or slats.
View termA declaration by a pilot indicating that the aircraft has enough fuel to reach the destination but no extra fuel for delays.
View termA standard radiotelephony term meaning 'No'; used to indicate a negative response or denial.
View termA phrase used by pilots to indicate they cannot comply with a specific instruction or clearance.
View termA rapid descent by an aircraft in response to an emergency situation.
View termAn ATC clearance that permits the pilot to perform a touch and go, stop and go, low approach, or full stop landing at the pilot’s discretion.
View termA radio call indicating an urgent situation that is not immediately life-threatening.
View termThe area where aircraft are parked for loading, unloading, or maintenance.
View termA term used by pilots to report the altitude they are currently climbing or descending through.
View termAn instruction authorizing an aircraft to proceed across a specified runway, typically during taxi operations.
View termA standard rectangular traffic pattern around the airfield used for sequencing aircraft for landing or training operations.
View termA report made by a pilot to ATC providing the aircraft's current position, altitude, and other relevant information.
View termATC clearance authorizing an aircraft to begin pushback from the gate and start engines.
View termThe altimeter subscale setting that causes the altimeter to read elevation above mean sea level at an airfield. Used primarily below transition altitude.
View termThe flight path at right angles to the landing runway off its approach end.
View termThe flight path at right angles to the landing runway at the upwind end.
View termHeading instructions issued to provide navigational guidance by radar
View termIndication that a particular aircraft is identified on the radar display and radar flight following will be provided
View termATC instruction indicating that radar monitoring and associated services are no longer being provided; the pilot must now operate under visual or procedural rules.
View termAn instruction from ATC to initiate a right turn onto a specific heading, route, or to avoid traffic or terrain.
View termThe phase of flight where the aircraft maintains a steady altitude and speed.
View termA descent at a controlled rate while maintaining cruise speed.
View termA climb technique where the aircraft climbs at a constant power setting and speed.
View termAn instruction indicating that the aircraft is authorized to execute an RNAV approach.
View termAn ATC instruction authorizing an aircraft to proceed under its own power to a specified location on the aerodrome, such as a runway holding point or parking stand.
View termAn ATC instruction specifying the taxi route an aircraft must follow, indicating designated taxiways and any other routing information.
View termA path on an airport connecting runways with aprons, hangars, terminals, and other facilities.
View termA phrase used by ATC to confirm that the pilot's readback of instructions is accurate.
View termAn air traffic control authorization allowing an aircraft to begin pushback from the gate or stand, typically in coordination with ground services.
View termTaxiing on a runway in the opposite direction of takeoff or landing.
View termA term used by pilots to indicate the estimated time of arrival at a specific point.
View termA maneuver to change from one parallel runway to another during approach.
View termAn ATC instruction directing the pilot to maintain the ongoing descent to a specified level or altitude without interruption.
View termInstruction for the pilot to return to their own pre-filed or previously assigned route after deviation or vectoring.
View termA warning issued to alert the pilot of an immediate safety concern.
View termAn IFR approach procedure that permits an aircraft under VFR conditions to proceed to the destination airport by visual reference to the surface while operating on an IFR flight plan
View termAn instruction to terminate the Standard Instrument Departure procedure.
View termAn instruction from air traffic control directing an aircraft to decrease altitude to a specified level.
View termAn instruction to begin descent and level off at the specified altitude, maintaining it until further clearance is issued.
View termA designated area where an aircraft is parked for loading, unloading, or maintenance.
View termAn instruction to terminate the Standard Terminal Arrival Route procedure.
View termAn instruction to abort the takeoff procedure before the aircraft becomes airborne.
View termTo stop the takeoff procedure after it has begun but before the aircraft becomes airborne.
View termA defined rectangular area on a land aerodrome prepared for the landing and takeoff of aircraft.
View termAn ATC instruction directing the pilot to follow a specified Standard Instrument Departure (SID) or route after takeoff.
View termThe initial leg of the traffic pattern after takeoff, flown parallel to the runway and in the direction of departure.
View termAn instruction to initiate a climb to a specific altitude and level off upon reaching it, unless otherwise directed.
View termInstruction for the aircraft to begin climbing to the stated altitude and maintain that altitude when reached.
View termAn ATC instruction to maintain or resume climbing to a previously assigned altitude or to a new altitude.
View termAn approach over the runway where the aircraft descends to runway level but does not land, typically followed by a climb-out.
View termA maneuver in which an aircraft lands on a runway and immediately takes off again without coming to a full stop.
View termAn instruction for a pilot to set the aircraft's transponder to standby mode, ceasing transmission of the transponder signal.
View termAn ATC instruction to activate the IDENT feature on the aircraft's transponder, which causes the radar return to flash, allowing identification of the aircraft.
View termAn instruction for a pilot to set a specific transponder code, enabling air traffic control to identify and track the aircraft on radar.
View termATC clearance authorizing the aircraft to start its engines, typically when pushback is not required.
View termPhrase used by pilots to confirm that they have visually acquired the reported traffic.
View termA warning issued to alert the pilot of nearby aircraft that may pose a collision risk.
View termUsed by pilots to report they are vacating a specific altitude, either climbing or descending from it.
View termA standard radiotelephony term meaning 'I have received all of your last transmission'; it does not imply compliance or agreement.
View termA radiotelephony term meaning 'will comply'; it signifies that the message has been received, understood, and will be complied with.
View termA phrase used to instruct the pilot to continue flying under Visual Flight Rules.
View termA term used to describe operations conducted with visual reference to the terrain.
View termA phrase used to instruct the pilot to visually keep a safe distance from other aircraft.
View termAn instruction indicating that the aircraft is authorized to execute a visual approach.
View termAn instruction to stop before reaching a specified point, usually a runway or intersection, and not proceed until further clearance is received.
View termAn instruction indicating that the aircraft is authorized to execute a VOR approach.
View termA defined area on an airport intended to accommodate aircraft for purposes of loading or unloading passengers or cargo, refueling, parking, or maintenance.
View termAn instruction meaning 'wait and I will call you'; it indicates that the controller or pilot is temporarily unable to communicate.
View termA racetrack-shaped flight path flown to delay an aircraft's approach.
View termInstruction to change the aircraft's communication radio frequency to another specified ATC unit or frequency.
View termAn ATC instruction directing an aircraft to follow a specified route, airway, or series of waypoints.
View termA phrase used to request the repetition of all or part of a previous transmission.
View termThe current atmospheric conditions affecting aircraft movement.
View termA request for the current wind conditions at a specific location.
View termAn air traffic control authorization for an aircraft to depart from a specified runway, indicating that the runway is available and safe for immediate takeoff.
View termAn air traffic control authorization for an aircraft to land on a specified runway, indicating that the runway is available and safe for landing.
View termA procedure where the receiving station repeats a received message or its pertinent parts to confirm accurate reception.
View termA procedure whereby an aircraft taxis in the opposite direction of take-off or landing on a runway to reach the threshold or exit.
View termA visual maneuver used to enter the traffic pattern from above the airfield, typically involving an initial pass over the runway followed by a break into the pattern.
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