5. Vectoring - ATM1 Flashcards
What is vectoring?
Provision of navigational guidance to aircraft in the form of specific headings, based on the use of an ATS surveillance system.
Vectoring shall be achieved by issuing specific headings to enable the aircraft to maintain the desired track.
What factors shall be considered when initiating turns for vectoring? (5)
- Angle of turn (total change of heading).
- Time lag or delay in the turn being initiated by the pilot.
- Drift caused by wind speed and direction.
- Ground Speed.
- Rate of turn.
Who is responsible for vectors?
Radar controller has complete freedom of action to vector aircraft as required by circumstances.
However, in practice this freedom may well be limited by local environmental issues.
Caution - Rules of the Air – other aircraft may not anticipate a manoeuvre in opposition to these.
The optimum route may be selected to? (5)
- To lose height.
- To avoid weather or PE clutter.
- To fit in the traffic sequence.
- To avoid high ground, obstructions, other airspace, etc.
- To provide a reasonable angle of closure to the final approach track.
When shall aircraft not be vectored?
Except when transfer of control is to be effected, aircraft shall not be vectored closer than 2.5 NM or, where the minimum permissible separation is greater than 9.3 km (5 NM),
a distance equivalent to one-half of the prescribed separation minimum, from the limit of the airspace for which the controller is responsible, unless local arrangements have been made to ensure that separation will exist with aircraft operating in adjoining areas;
What shall be done when vectoring is terminated?
When vectoring is completed, pilots shall be instructed to resume their own navigation and they shall be given position information and appropriate instructions, as necessary.
What is the RT for termionating vectors?
ATC - Speedbird 123, position 5 miles north of Avon, resume own navigation direct TYN (VOR)
ATC - Speedbird 123, resume own navigation direct TYN (VOR) track xxx (three digits), distance (number) miles
ATC - Speedbird123 resume own navigation, position 15 miles south east of Avon
Basic radar circuit
What shall the final vector onto the ILS do?
Intercept the ILS localiser course at an angle of 45°or less.
Be established on the final approach track prior to intercepting the specified or nominal glide
path of the approach procedure from below.
When to turns towards final?
- Start by calculating the point at which aircraft will commence descent on final approach (at 300 ft/mile)
- Allow 2 miles straight and level flight before commencing descent.
- Work out position of 15-45 degree closing heading and base legs.
