Separation Standards - Time Flashcards
T1a
5 mins
a) the leading aircraft has maintained and will continue to maintain an indicated airspeed at least 30kts greater than the following aircraft
b) 5 min separation has been established by passage of both aircraft over i) the same positive radio fix or ii) the same ATS surveillance position
c) One aircraft maintains while vertical separation does not exist
d) Vertical separation at the commencement of the level chance does not exceed 4000ft
T2
10 minutes
Frequent determination of speeds is possible by:
a) use of navaids
b) use of approved SCNS
c) use of RNAV10/RNP10 or RNP4 within RNP airspace; or
d) visual reference to the ground by day (or night for vfr aircraft)
T3
15 Min
Within all CTA and OCA
T4
10 Minute - Mach Number Technique
Use the Mach Number Table to apply between aircraft:
a) on the same track where the aircraft have reported over a common point and 10 min will be maintained until another form of separation is established; or
b) on converging tracks and it is confirmed that 10 min:
i) will exist at the point the aircraft concerned enter the lateral conflict; and
ii)will be maintained until another form of separation is established
T5
9 to 5 min - Mach Number Technique
Apply MNT between aircraft where opening speed exists provided that:
a) the required time interval will exist at the common point observed by:
i) ATS surveillance system
ii) passage over the same on-track, positive radio fix; and
b) the leading aircraft is maintaining a greater Mach number than the following aircraft, in accordance with T5 table
T6a
10/15 min before ToP
During a change of level, vertical separation must exist by the estimated time of passing minus:
a) the time standard (10 or 15 min), as applicable to the route
b) 10 min between aircraft equipped with approved SCNS
T6b
10/15 min after ToP
During a change of level, vertical separation must exist until the estimated time of passing plus:
a) the time standard (10 or 15 min), as applicable to the route; or
b) 10 min between aircraft equipped with approved SCNS
T7a
Opposite sides of a navaid
Both aircraft report passing the same positive radio fix
T7b
Opposite sides of visual fix
a) both aircraft report passing the same visual fix, by day, or by night if both aircraft are VFR at night; and
b) The visual fix must be a prominent geographic feature within 10 000 FT of the levels of each aircraft
T7c
Sight and Pass
a) Both aircraft report sighting and passing the other by day (and in OCA by night)
b) Both aircraft are above 10 000 FT; and
c) You ensure there is no possibility of incorrect identification by either aircraft
T7d
Surveillance Passing
a) aircraft are on reciprocal tracks;
b) Aircraft are observed by an ATS surveillance system to have definitely passed and position symbols are not touching; and
c) Not applicable to low quality ADS-B symbols
T8a
15 min, at the crossing point
a) each aircraft has either approved SCNS or MNPS;
b) ground speeds are a minimum 300kt; and
c) Separation exists when there is at least 15 min between the estimates at the intersection of the tracks
T8b
15 mins from the crossing point
a) Each aircraft has either an approved SCNS or MNPS
b) Ground speeds are a minimum of 300kts; and
c) Vertical separation must exist:
i) from 15 min prior to the estimate for A/C B and
ii) until 15 min after A has passed the intersection
