Instrument Procedures Approaches Flashcards
What is the speeds for a CAT A aircraft
Vat <91
Initial approach speed 90/150
Final approach speed 70/100
Max visual circling speed 100
Speeds for CAT B aircraft
Vat 91/120
Initial approach speed 120/180
Final approach speed 85/130
Max visual circling speed 135
Speeds for class C aircraft
Vat 121/140
Initial approach speed 160/240
Final approach speed 115/160
Max visual circling speed 180
Speeds for class D aircraft
Vat 141/165
Initial approach speed 185/250
Final approach speed 130/185
Max visual circling speed 205
What is the min obstacle clearance at min sector altitude / terminal arrival altitudes
300m within 25nms of nav aid
When can you descend below MSA
The aerodrome is visible
Aircraft radar vectored
Flying published procedure
What does axis does precision approach use
Azimuth and glide path
NOT distance
CAT 1
System min 60m (200ft)
DH >60m (200ft)
RVR >550m
Ground vis >800m
CAT 11
System min 30m (100ft)
DH 30-60m (100-200ft)
RVR >350m
CAT 111 A
System min nil
DH <30m (100ft) or no DH
RVR >200m
Cat 111 B
System min nil
DH <15m (50ft) or no DH
RVR 50-200m
Cat 111C
System min nil
DH >60m nil
RVR nil
Ground vis nil
What happens if you lose glide slope
Becomes non precision approach
Who is DH/DA set by
Operator
Who is OCH / OCA set by
obstacle clearance height
The state
What is a visual approach
Part of an instrument approach except it is finished visually (not the same as going to DH)
Note not need to be VMC
Who is responsible for separation in a visual approach
Provided by atc
Must still follow profile of the instrument approach
When can a instrument procedure be completed in a different way than that published
When given contrary instructions by atc
If RVR is below limits what is the lowest you can go for non- precision and precision approaches
Non- precision
300m (1000ft)
Precision
Not past outer marker
If already lower than this when RVR goes below min = continue to DH /DA / MDA / MDH
What is a straight - in approach for a non precision approach
Where the final approach track (FAT) converges with the runway of 30° or less
When are you “established” on a NDB
Non precision approach
5° either side of final approach track (FAT)
What is the MOC when in the primary section
Primary section = within half scale deflection
= 300m
600m for mountainous areas
What is MOC in secondary areas
Outside halfwidth deflection
= reduces until it is 0 at edges of secondary area
What is fix tolerance area
Area of uncertainty
What is most accurate for track guidance
Ils localiser