6) Air Traffic Services

Question 1

Class A air traffic airspace consists of:

Answer 1

Only IFR in class A
All flights subject to ATC clearance and are separated from eachother

Question 2

Class B air traffic airspace consists of:

Answer 2

IFR and VFR

All dlights subject to ATC clearance and seperated from eachother

Question 3

Class C air traffic airspace consists of:

Answer 3

IFR and VFR
All flights subject to ATC clearance
IFR seperated from all other flights
VFR seperated from IFR and recieve traffic info on other VFR +avoidance advice on request

Question 4

Class D air traffic airspace consists of:

Answer 4

IFR and VFR
All subject to ATC clearance
IFR separated from IFR and given info on VFR
VFR recieve air traffic info on all other flights
Traffic avoidence given when requested by pilot

Question 5

Class E air traffic airspace consists of:

Answer 5

IFR and VFR
IFR require ATC clearance
IFR separated from IFR
All flights recieve traffic info as appropriate

Question 6

Class F air traffic airspace consists of:

Answer 6

IFR and VFR
IFR recieve procedural or deconfliction service
All flights recieve basic or traffic service on request

Question 7

Class G air traffic airspace consists of:

Answer 7

IFR and VFR

All flights may recieve a service outside of controlled airspace if requested

Question 8

What is an ATSU?

Answer 8

Air traffic service unit

Question 9

What services does an Area Control Centre (ACC) seevice provide?

Answer 9

• air traffic control to IFR flights operating on airways
• flight information (FIS) and alerting services
• distress and diversion service

Question 10

Who shares the total air traffic control responsibility?

Answer 10

Aerodrome control and approach control

Question 11

What is the function of the ‘tower’?

Answer 11

To control aircraft on the runways and those in or joining the circuit. (In smaller aerodromes they will also be in charge of aircraft on the manoeuvring area)

Question 12

What is the function of ‘ground’ for aerodrome control?

Answer 12

They are responsible for aircraft on the manoeuvring area. In smaller aerodromes this will be the towers responsibility

Question 13

Who is in charge of aerodrome control?

Answer 13

The tower and the ground

Question 14

What is approach control?

Answer 14

It is responsible for traffic leaving the circuit, joining VFR or IFR or operating in the vacinity of the aerodrome

Question 15

What is the FIS?

Answer 15

Flight information service

Question 16

What does the flight information service do?

Answer 16

It is an information service that is used at aerodromes without ATC. It can give instructions to aircraft on the ground but is an information only service in the air.

Question 17

What is the air/ground communication service? (AGCS)

Answer 17

It is a RADIO service for aerodromes without ATC or FIS.

Question 18

What is the safetycom frequency?

Answer 18

135.475

And can only be used 2000ft above aerodrome level

Question 19

What is the lower airspace radar service? (LARS)

Answer 19

They are a service used in unregulated airspace whereby ATSUs may provide traffuc or deconfliction service on request within 30nm of each unit

Question 20

What services are available outside of controlled airspace?

Answer 20

Basic service
Traffic service
Deconfliction service
Procedural service

Question 21

What service should be requested from a unit with the callsign “information”?

Answer 21

Basic

This is a FISO unit

Question 22

If you make an agreement with an ATSU, what does this mean?

Answer 22

You must follow instructions given even when in uncontrolled airspace, unless it is undafe to do so

Question 23

What is the “basic service”?

Answer 23

They give general information to IFR and VFR but dont have to give traffic information. They may identify the aircraft but do not have to tell the pilot. The pilot remains responsible for collision avoidance.

Question 24

What is the traffic service?

Answer 24

A radar based ATS tower where they provide basic service and radar traffic info to IFR and VFR. Collision avoidance is still the pilots responsibility

Question 25

What is the deconfliction service?

Answer 25

Basic and radar service but the controller will provide specific traffic info and will issue headings and levels aimed at achieving planned deconfliction minima. Given to IFR flights

Question 26

What is the deconfliction minima?

Answer 26

5nm laterally OR 3000ft vertically If the aircraft are using the same controller this may be reduced to 3nm laterally and 1000ft vertically

Question 27

What is the procedural service?

Answer 27

Basic service along with vertical, lateral, longitudinal and time instructions ained at achieving deconfliction minima against other flights using procedural service. Only for IFR

Question 28

What is the pre flight briefing service?

Answer 28

Pre flight information for VFr flights including NOTAMs, navigation warning bulletins and aerodrome bulletins

Question 29

When must you file a flight plan?

Answer 29

All IFR in controlled airspace VFR in class C and D airspace All flights crossing a UK international FIR boundary Flights leaving the ATZ at night When you want to recieve an air traffic advisory service Any flight weighing 5700kg+ where the destination is 40km from the aerodrome

Question 30

When do flight plans need to be filed?

Answer 30

30 mins before take off (60 in some cases) or if this is not possible then while in the air

Question 31

How long of a delay requires a new flight plan?

Answer 31

If your flight is delayed by 60mins, a new flight plan shouod be submitted. If your flight is entering a controlled airspace then this is reduced to 30 mins

Question 32

How much notice should you give for your flight plan for a flight of over 500nm?

Answer 32

4 hours notice | 2 hours for any shorter than that

Question 33

What is the ATIS?

Answer 33

Automatic terminal information service

Question 34

Can aircraft depart the UK from or to places outside the EU?

Answer 34

Unless given prior permission, the aircraft MUST depart from a designated customs and excise airport

Question 35

If you arrive or leave Britain by an aircraft fron a non designated airfield must…

Answer 35

Give a minimum of 12 hours notice in writing (24 hrs in some cases) to the relevant police department

Question 36

When Is it advisable to file a flight plan?

Answer 36

When flying more than 10nm from the coast or over sparsely populated mountainous areas

Question 37

What does the abbreviation AIRREP mean?

Answer 37

Aircraft report