Control Of A/c Flashcards
4 types of radar service
Radar control - controlled enroute a/c
Approach radar - for arriving and departing controlled traffic
Radar vectoring - to avoid danger areas. Intercept ILS etc
PAR and SRA - instrument approach systems
Radar ident other methods
Turn through 30* or more from coarse then return
Positive handover(transfer) from a radar controller who had previously ident the a/c
Geog location, lat and long, geo ref posn, relative to a nav aid etc
Radar contact definition
A/c has been ident on the radar display + instructions will be provided until the ATC service has been terminated
Posn information is given to the a/c on…
Radar ident
Termination of radar service
A/c will not be radar vectored
Closer to the edge of the RVA than 1/2 radar separation or 2.5nm whichever is the greater
Radar controller is responsible for
Ground clearance of the a/c
Gives mag HDG
Radar vectoring - ILS req
Closing HDG is limited to 45*
Modes 1 and 2 is limited to 30*
Closing HDG is to be maintained for not less than 1 nm
Radar controlled approach when will a pilot be advised to carry out a missed approach
If radar contact is lost during the last 2nm
Approach radar controller will be responsible for
Obtaining l/d clearance from a/d control
Forwarding this clearance onto the a/c - if not received by the aerodrome by 2nm - carry out a missed approach
SRA
Surveillance radar approach
Distances are passed to the a/c from the threshold and advisory heights
N/p approach
Approach controller responsible for the fwd l/d clearance from a/d to the a/c
SRA - normal radar termination range (RTR)
2nm or less
RTR is 2 - Range and advisory heights are passed every 1nm
RTR is 1 - range and advisory heights are passed every 1/2 nm
Aerodrome control - succeeding a/c will not be cleared for t/o until
The first has either
Crossed the upwind threshold
Commenced a turn away from the r/y
A/d control - arriving a/c clearance to l/d
Normally at 2nm but no later than 2nm - if not = m/a
What is a l/d after clearance
Not a clearance to l/d - provisional
Passes the responsibility to the pilot of the second a/c
Necessary conditions - land after clearance
Daylight
Pilot of second to see the preceding a/c throughout the manoeuvre
R/y is dry and occupancy is limited to 50secs
ATCO can see the entire length of the r/y
Info to a/c prior to entering the traffic pattern/commencing an aprch to l/d
R/y in use
Wind speed and direction
QNH
When are a/c transferred from aprch control to a/ control
In the vicinity of the aerodrome
Aprch control service are found in
A/d in CTRs where met conditions are IMC or the criteria for VMC t/o cannot be met
Aprch control in an aprch control service is responsible for
Giving clearance for t/o
Obtaining clearance to l/d from aerodrome controller for IFR flights carrying out low vis approaches
Delays - control of a/c
ATC advise operators when the delay exceeds 30mins
IFR flight will not be cleared for an initial approach below the min alt unless
A/c reports that the a/d is in sight
Pilot reports passing an appropriate point defined by a nav aid
A/c is conducting a visual aprch
A/c posn has been positively determined by radar
An IFR flight can be cleared fora visual aprch if
Pilot can maintain visual ref with the terrain
Ceiling is at or above the approved aprch level
Or
Pilot reports at anytime during the inst approach that the met conditions would allow a visual aprch and l/d - need not be Vmc
Speed control will cease when the a/c
Has passed 4nm from l/d
Unfamiliar procedures
ATC can specify the whole procedure - straight in aprch - only the FAT and the missed aprch will be passed
Separation between holding a/c and enroute a/c without lateral separation
5mins flying time of the holding area
EAT and who is is applicable to
Time the a/c will be expected to leave the hold and commence the aprch
Applicable to a/c who have been subjected to a delay of 10mins or more
EAT must be sent
Expeditiously to a/c expected to hold for 30mins or more
Revised EAT is sent when it differed by 5 mins or more from previous EAT
Info for arriving a/c on the final aprch
Sig changes in mean surface wind speed and direction
Windshear
Vis and RVR
Air traffic advisory service
Provided within class F
Ensures the separation of IFR traffic
Advisory routes instead of airways (ADRs)
Clearances not issued - only advice
Traffic to cross an ADR at 90* at the appropriate FL
All flights receive FIS if requested
Emergency descent
ATCU will warn the a/c in the vicinity
A/c will broadcast altitude at intervals
Maintain HDG and speed (current clearance) unless threatened by danger/ instructed by ATC
Fuel jettison is not allowed
Below 6000
Over towns
When CB activity is reported/expected
In CAS - need to inform ATCU
Strayed/unindent a/c
A/c has deviated sig from track/ reports it is lost
