CAP493 Flashcards
What are the objectives of Air Traffic Services?
- Prevent collisions between aircraft
- Prevent collisions between aircraft on the manoeuvring area and obstructions on that area
- Expedite and maintain and orderly flow of air traffic.
- Provide advice and information useful for the safe and efficient conduct of flights.
- Notify appropriate organisations regarding aircraft in need of search and rescue aid, and assist such organisations as required.
What is the action to be taken when a captive balloon breaks free?
Pass the following info to the appropriate ACC
- The type of balloon and if anyone is on board
- Position of balloon site
- Direction and speed of drift
- Last observed height
- Length of cable attached to balloon
- Balloon operators name and telephone number.
When can 1 minute departure separation be applied?
Provided that the aircraft fly on tracks diverging by 45° or more immediately after take-off.
When can 2 minute departure separation be applied?
If:
- The preceding aircraft has filed a TAS of 40kts or more faster
- Neither aircraft is cleared to execute any manoeuvre that would decrease the 2 minute separation
When can 5 minute departure separation be applied?
If the preceding aircraft has filed a TAS of 20kts or more faster
or
Provided that the 5 minuted separation is maintained up to a reporting point within or adjacent to a control zone or terminal control area and the aircraft will subsequently be separated wither:
- Vertically
- By 30° diverging tracks
- By Radar
What Departure separation should be used if 1, 2 or 5 minutes can’t be used?
10 Minutes
What is a clearance limit?
The point to which an aircraft is granted an ATC clearance and shall be specified by naming:
- An aerodrome
- A reporting point
- A CAS boundary
What phraseology should be used if an emergency arises involving fuel?
MAYDAY, MAYDAY, MAYDAY FUEL
What shall an ATC clearance include?
- Aircraft identification
- Clearance limit
- Route
- Levels of flight for the entire route or part thereof and changes of levels if required
What shall a conditional clearance contain?
- Callsign of the aircraft or vehicle being given the clearance
- The condition “behind”
- Identification of the subject of the condition
- The clearance
- A brief reiteration of the clearance
CAT A flight priority
Aircraft Emergency
Police Emergency
Air Ambulance/Medical Aircraft where safety of life in involved
This can now also include medical flights that are transporting harvested organs, biological equipment and medical equipment.
CAT B Flight priority
SAR or other Humanitarian flights
Open Skies flights
Normal priority police flights
CAT C Flight Priority
Royal Flights
Flights carrying visiting heads of state
CAT D Flight priority
Flights Carrying the:
Prime Minister
Chancelllor of the Exchequer
Home Secretary
Foreign Secretary
Also visiting Heads of Government notified by the CAA
CAT E Flight priority
Time or Weather critical Calibration flights
Other flights authorised by the CAA
Normal Flight priority
Flights which have filed a flight plan in the normal way
Exam flights
CAT Z Flight priority
Training/Non Standard flights
When does Transfer of Control take place?
- At an agreed reporting point
- On an estimate for an FIR boundary
- AT or passing and agreed level
- While the aircraft is climbing or descending to a previously agreed level provided that the transferring controller has ensured that separation will exist for the remainder of the climb or decent.
In All classes of airspace, when is a formation considered to be a single unit?
Military aircraft: 1nm laterally and 100ft Vertically
Civilian aircraft: 0.5nm laterally and 100ft vertically
What should aerodrome control co-ordinate with approach control? [CAP 493]
- Departing IFR flights
- Arriving aircraft which make their first call on the tower frequency
What shall approach control co-ordinate with aerodrome control? [CAP 493]
- Aircraft approaching to land (if necessary a landing clearance)
- Arriving aircraft which are to be cleared to visual holding points.
- Aircraft routeing through the traffic CCT