IFR Knowledge Flashcards
When can you conduct a visual approach by DAY?
By Day. Within 30NM of that aerodrome not below the LSALT/MSA, the appropriate step of the DGA, or the MDA for the procedure being flown, the aircraft is established;
(1) clear of cloud;
(2) in sight of ground or water;
(3) 5,000M vis or the aerodrome is in sight and
(4) can maintain (1), (2) and (3) at an altitude not less than
(i) if in controlled airspace – 500FT above the lower limit of the CTA unless a clearance is received from ATC to depart and re-enter controlled airspace during the
descent; and
(ii) the minimum height prescribed by CASR 91, being 1000ft over built areas or 500ft
When can you conduct a visual approach by NIGHT?
By Night. At an altitude not below the LSALT/MSA, the appropriate step of the DGA, or the MDA for the procedure being flown, the aircraft is established:
(1) clear of cloud;
(2) in sight of ground or water;
(3) 5,000M vis; and
(4) can maintain (1), (2) and (3) at an altitude not less than:
(i) in controlled airspace – 500FT above the lower limit of the CTA unless a clearance is received from ATC to depart and re-enter controlled airspace during descent; and
(ii) one of the following:
– route segment LSALT/MSA; or
– the appropriate step of the DME/GNSS Arrival procedure, or
– if being vectored – the last assigned altitude.
until the aircraft is:
– within the prescribed circling; OR
– for an aerodrome without an authorised instrument
approach procedure – within 3NM of the ARP, and the aerodrome is in sight; or
– within 5NM (7NM for a runway equipped with an ILS/ GLS) of the aerodrome, aligned with the runway centreline and established not below “on slope” on the T-VASIS or PAPI; OR
– within 10NM (14NM for Runways 16L and 34L at Sydney) of the aerodrome, established not below the ILS/GLS glide path with less than full scale deflection
Visual Circling
Cat C & D Obstacle Clearance
400FT
Visual Circling Area
Cat C & D
Measured from:
C: 4.20NM
D: 5.28NM
Measured from an Arc centred on the threshold
Cat C Vat
IAL approach speed
121-140KIAS
Cat C FINAL APPROACH
IAL approach speed
115-160KIAS
Cat C INITIAL & INTERMEDIATE IAL approach speed
160-240KIAS
Cat C VISUAL CIRCLING speed
Max 180KIAS
Cat C MISSED APPROACH approach speed
Max 240KIAS
MISSED APPROACH Obstacle clearance and climb gradient
100FT
2.5% (152FT/NM)
MSA obstacle clearance
10NM & 25NM
1000FT
VISUAL CIRCLING may only occur when the pilot:
a. maintains the aircraft within the CIRCLING; and
b. maintains VISIBILITY along the intended flight path, not less than the minimum specified for the procedure; and
c. maintains VISUAL CONTACT with the landing runway environment (threshold, approach lighting or other markers identifiable with the runway; and either
d. by night or day, while complying with a., b. and c. and from a position within the circling area on the downwind, base or final leg of the landing traffic pattern at an altitude not less than the MDA, can complete a continuous descent to the landing threshold using rates of descent and flight manoeuvres which are normal for the aircraft type and, during this descent, maintains an obstacle clearance along the flight path not less than the minimum for the aircraft performance category until the aircraft is aligned with the landing runway; or
e. in daylight only, while complying with a., b. and c., maintains visual contact with obstacles along the intended flight path and an obstacle clearance not less than the minimum for the aircraft performance category until the aircraft is aligned with the landing runway.
MEDIUM BEHIND HEAVY
Wake Turbulence Separation
Full Length; &
Intermediate (More than 150m after takeoff commencement point of preceding aircraft); &
Arrival
Full Length: 2mins
Intermediate: 3mins
Arrival: 2mins
MEDIUM BEHIND SUPER
Wake Turbulence Separation
Full Length; &
Intermediate (More than 150m after takeoff commencement point of preceding aircraft); &
Arrival
Full Length: 3mins
Intermediate: 4mins
Arrival: 3mins
Wake Turbulence Separation
ATC distance:
Medium to Heavy
Medium to Super
5nm
7nm
