Module 2 - ATM - Provisions of Aerodrome Control

Question 1

What are the objectives of air traffic services?

Answer 1

• To prevent collisions between aircraft.
• To prevent collisions between aircraft on the manoeuvring area and obstructions on that area.
• To expedite and maintain an orderly flow of air traffic.
• To provide advice and information useful for the safe and efficient conduct of flights.
• To notify appropriate organisations regarding aircraft in need of search and rescue aid and to assist such organisations as required.

Question 2

What are the types of air traffic services?

Answer 2

Air traffic control service, flight information service, alerting service and air traffic advisory service.

Question 3

Where are air traffic control services provided?

Answer 3

Area control centre, approach control unit and aerodrome control tower.

Question 4

Who does an aerodrome control unit provide services to?

Answer 4

To ACFT flying with visual reference to the surface in, and in the vicinity of the ATZ and operating on the manoeuvring area.

Question 5

What are the 3 working positions an aerodrome control tower is divided into?

Answer 5

Aerodrome controller, ground controller and clearance delivery position

Question 6

What is the aerodrome controller responsible for?

Answer 6

Operations on the RWY and ACFT flying within the ATZ

Question 7

What is the ground controller responsible for?

Answer 7

Traffic on the manoeuvring area with the exception of RWYs.

Question 8

What is the clearance delivery position responsible for?

Answer 8

Delivery of startup and ATC clearances to departing IFR flights.

Question 9

When shall control of an arriving ACFT be transferred from the approach control unit to the aerodrome control tower?

Answer 9

When the ACFT:

Is in the vicinity of the AD and…

• It is considered that approach and landing will be completed in visual reference to the ground or…
• Has reached uninterrupted visual meteorological conditions.

or

Is at a prescribed point or level.

or

Has landed.

Question 10

When should transfer of communications to the aerodrome controller be effected?

Answer 10

At such a point, level or time that clearance to land or alternative instructions as well as information on essential local traffic can be passed in a timely manner.

Question 11

When shall control of a departing ACFT be transferred from the aerodrome control tower to the approach control unit?

Answer 11

When VMC prevails in the vicinity:

• Prior to the time the ACFT leaves the vicinity of the aerodrome or…
• Prior to the ACFT entering IMC or…
• When the ACFT is at a prescribed point or level.

When IMC prevails at the aerodrome:

• Immediately after the ACFT is airborne or…
• When the ACFT is at a prescribed point or level.

Question 12

What may be established (either stationary or mobile) for the use of large formation flights or other military operations?

How can this be arranged?

Answer 12

Temporary airspace reservation.

By coordination between the user an the appropriate ATS authority.

Question 13

What shall information passed to an ACFT by an aerodrome controller include?

Answer 13

• Traffic information.
• Essential local traffic information.
• MET information.
• Operation of aeronautical facilities.
• Air traffic incident reports.

Question 14

What shall information disseminated by an ATS unit to all concerned regarding the intended flight of a medium or heavy unmanned free balloon include?

Answer 14

• Balloon flight identification or project code name.
• Balloon classification and description.
• SSR code or NDB frequency as applicable.
• Launch site.
• Estimated time of commencement of the launch or the planned period of the launches.
• Expected direction of ascent.
• Cruising level(s) (pressure altitude).
• Estimated elapsed time to pass 60,000ft pressure altitude or to reach cruising level if at or below 60,000ft, together with an estimated location.