Air Traffic Control Communication Codes

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63 Questions

Which piece of equipment is indicated by the suffix 'T' on a flight strip?

Transponder with altitude encoding

What does the computer identification number on the flight progress strip denote?

Unique computer-generated number for the aircraft

What is indicated by the suffix 'Q' on a flight strip?

RNP and RVSM aircraft

In the context of the National Beacon Code Allocation Plan (NBCAP), why does the NBCAP computer program reserve some codes?

To ensure uniqueness of transponder codes within the same ARTCC

What is indicated by an 'H' preceding the aircraft type on the flight strip?

The aircraft is considered a heavy aircraft

In the case of multiple aircraft flying under the same IFR clearance, what precedes the aircraft type on the flight strip?

The number of aircraft involved

What does the equipment suffix added to the aircraft type on the flight strip indicate?

The type of equipment onboard the aircraft

What creates a phenomenon known as wake turbulence and is identified with an 'H' preceding the aircraft type on the flight strip?

A heavy Boeing 747

What is the purpose of the aircraft identification field on the flight progress strip?

To display the approved identification of the aircraft

In the context of flight progress strips, what does the revision number field indicate?

The number of times a new flight progress strip has been printed for a particular aircraft

Which statement best describes the purpose of the revision number (FDIO strip only) in field number 2?

It signifies changes made to the pilot's flight plan or the ARTCC's clearance

What is the primary concern of the flight data controller in the control tower regarding departing aircraft?

Being aware of and managing departing aircraft

What is the primary purpose of the Automated Radar Terminal System (ARTS)?

To assist controllers in managing air traffic

What does the abbreviation LAHSO stand for in the context of control tower operations?

Land and Hold Short Operation

What are the responsibilities of the ground controller in the control tower?

Manage ground taxiing and prevent runway incursions

What is the purpose of the National Beacon Code Allocation Plan (NBCAP) in control tower operations?

To reserve and allocate transponder codes for aircraft identification

What are the four categories of duties assigned to personnel in a control tower?

Flight data, clearance delivery, ground control, local control

What type of aircraft separation are controllers in a VFR tower responsible for?

Separating IFR arrivals from IFR departures

What are the procedures and techniques discussed in Chapter 7 related to?

Separation of aircraft operating within the airport traffic area

In a busy tower, how are responsibilities typically assigned?

Responsibilities may be assigned to four or more individual controllers

What are the conditions under which the ground controller should not authorize any aircraft or vehicular operation within the confines of a localizer or glide slope critical area?

Ceiling lower than 800-foot and visibility less than 2 miles, and an arriving aircraft using ILS between the outer marker and the airport

Why have precision approach critical areas been defined and demarcated wherever a Category II or III ILS is in operation?

To provide additional obstacle clearance during Category II or III ILS approaches

What weather conditions make the ground controller responsible for keeping aircraft and vehicles clear of the obstacle critical area as an aircraft is conducting an approach or a missed approach?

Ceiling less than 200 feet AGL or RVR visibility for the runway 2,000 feet or less

What conditions permit a pilot to land during Category II or III ILS approaches?

Extremely low visibilities

What are the primary duties of a Clearance Delivery Controller in a control tower?

Providing aircraft with information on expected departure and arrival routes

What is the main responsibility of a Ground Controller in a control tower?

Monitoring aircraft on the ground and directing them to their designated gates

What are the typical duties of a Local Controller in a control tower?

Issuing takeoff and landing clearances to aircraft

What is anticipated separation in the context of air traffic control?

A standard separation applied between arriving and departing aircraft

What creates the phenomenon of wake turbulence in aviation?

The airflow patterns generated by an aircraft in flight

What is the responsibility of the clearance delivery controller when the pilot's requested altitude exceeds the upper limit of the departure area?

Temporarily amend the pilot’s clearance and advise the pilot to expect the final altitude at a later time

What is the duty of the ground controller in relation to taxiing aircraft and vehicles around the airport?

Issuing instructions to aircraft taxiing to or from runways and to vehicles operating around the airport

What does the clearance delivery controller do if there is a need to change the pilot's route of flight?

Issue the new route to the pilot and amend the route of flight using FDIO equipment

What action does the ground controller take in relation to inactive runways and taxiways?

Ensure that aircraft do not taxi on inactive runways or taxiways

In what situation would a clearance delivery controller advise a pilot 'to maintain [altitude], expect [altitude] one zero minutes after departure'?

When there are active restrictions in the departure area

What does the clearance delivery controller relay to pilots as part of the departure clearance?

Route of flight

In what circumstances might aircraft clearances need to be amended by the clearance delivery controller?

To conform to procedures in letters of agreement or facility directives

What is the primary responsibility of the ground controller in the control tower?

Managing aircraft and vehicles on the taxiways

What phenomenon is identified with an 'H' preceding the aircraft type on the flight strip?

Wake turbulence

What type of aircraft separation are controllers in a VFR tower responsible for?

Maintaining visual separation between aircraft

What are the four categories of duties assigned to personnel in a control tower?

Flight data, clearance delivery, ground control, local control

What is the primary concern of the ground controller in the control tower regarding departing aircraft?

Issuing taxi instructions and monitoring surface traffic

In the context of control tower operations, what creates a phenomenon known as wake turbulence and is identified with an 'H' preceding the aircraft type on the flight strip?

Local controller duties

What type of separation are controllers in a VFR tower responsible for?

Separating VFR arrivals from VFR departures

What are the responsibilities of the clearance delivery controller in the control tower?

Providing IFR clearances and separating IFR aircraft

What is one of the main duties of a flight data controller?

Operating the flight data processing equipment

What does the flight data controller do after obtaining IFR clearances from the ARTCC?

Pass the strip to the clearance delivery controller

What creates wake turbulence and is identified with an 'H' preceding the aircraft type on the flight strip?

Heavy aircraft

What is one of the main responsibilities of a ground controller?

Issuing taxi instructions to aircraft and vehicles

What is the main responsibility of the pilot in relation to wake turbulence?

To avoid wake turbulence

How does the FAA classify large aircraft?

Maximum certificated takeoff weights greater than 41,000 pounds up to and including 255,000 pounds

What is the appropriate action for aircraft departing behind a large or heavy jet to avoid wake turbulence?

Rotate their nose wheel after reaching the preceding aircraft’s rotation point and climb at a greater angle

What should controllers be aware of regarding pilots following large or heavy aircraft?

Pilots following large or heavy aircraft may wish to adjust their flight patterns to avoid wake turbulence

When is wake turbulence generated by a departing aircraft?

From when the nose wheel leaves the ground until it lands and the nose wheel is lowered to the runway

What is the purpose of the departure area described in the text?

To provide initial separation of departing aircraft from other aircraft within the approach controller's airspace.

What is the responsibility of the local controller regarding the departure area?

To advise pilots to contact the departure controller after departing.

What is the impact of the departure area on the responsibility of the departure controller?

The departure controller must keep arriving aircraft out of the departure area.

What is the significance of the shape of the departure area?

It automatically provides for initial separation of aircraft.

What is the primary purpose of advising departing pilots to contact the departure controller?

To ensure that departing aircraft are guided by the appropriate controller after takeoff.

Why are arriving aircraft not allowed to enter the departure area without approval from the local controller?

To prevent conflicts with departing aircraft within the area.

What is a key impact of facility directives on the local controller?

Permission to depart aircraft into certain areas without coordination.

What action must be taken by the local controller regarding departing aircraft?

Advise pilots to contact the departure controller after an aircraft departs.

What is a facility directive regarding departing aircraft in relation to arrival airspace?

The departure controller must keep arriving aircraft out of this area unless approved by local control.

Why does every facility have its own unique requirements affecting the shape of the departure area?

To ensure that specific areas are used only for departures and not arrivals.

Study Notes

Flight Strips and Aircraft Identification

  • The suffix 'T' on a flight strip indicates the presence of a transponder.
  • The suffix 'Q' on a flight strip indicates the presence of ADS-B (Automatic Dependent Surveillance-Broadcast).
  • An 'H' preceding the aircraft type on the flight strip indicates a heavy or large aircraft.
  • The equipment suffix added to the aircraft type on the flight strip indicates the type of equipment on board.

Flight Progress Strip

  • The computer identification number on the flight progress strip denotes the aircraft's identification.
  • The aircraft identification field on the flight progress strip indicates the aircraft's identification.
  • The revision number field on the flight progress strip indicates the revision number.

Air Traffic Control

  • The primary concern of the flight data controller in the control tower regarding departing aircraft is to ensure safe separation.
  • The primary purpose of the Automated Radar Terminal System (ARTS) is to assist controllers in tracking aircraft.
  • The primary purpose of the National Beacon Code Allocation Plan (NBCAP) is to assign unique codes to aircraft.

Control Tower Operations

  • The responsibilities of the ground controller include:
    • Clearing aircraft and vehicles for taxiing.
    • Maintaining awareness of inactive runways and taxiways.
    • Keeping aircraft and vehicles clear of critical areas.
  • The primary duties of a Clearance Delivery Controller include:
    • Issuing departure clearances.
    • Advising pilots of any changes to their route of flight.
  • The primary duties of a Local Controller include:
    • Maintaining safe separation of aircraft.
    • Issuing clearances for departing and arriving aircraft.

Wake Turbulence

  • Wake turbulence is created by large or heavy aircraft.
  • An 'H' preceding the aircraft type on the flight strip indicates an aircraft capable of creating wake turbulence.
  • The primary responsibility of the pilot in relation to wake turbulence is to maintain safe separation from preceding aircraft.
  • The appropriate action for aircraft departing behind a large or heavy jet to avoid wake turbulence is to maintain a safe distance.

Aircraft Separation

  • Controllers in a VFR tower are responsible for maintaining visual separation between aircraft.
  • Anticipated separation in the context of air traffic control refers to the predicted safe separation between aircraft.

Departure Area

  • The departure area is the airspace in which departing aircraft are cleared for departure.
  • The primary purpose of the departure area is to ensure safe separation of departing aircraft.
  • The local controller is responsible for managing the departure area and advising departing pilots to contact the departure controller.
  • Facility directives affect the shape of the departure area and require local controllers to take specific actions regarding departing aircraft.

Test your knowledge of air traffic control communication codes and conventions with this quiz. Questions cover topics such as strip request originator, type of aircraft, and revision number for flight plan information.

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