Chapter 6 Instrument Approach Procedures Flashcards
What is the most important factor surrounding the design of an aerodrome?
Terrain
What is the Vat for category A, B, C, D and E aircraft?
A = less than 91 B = 91-120 C = 121-140 D = 141-165 E = 165+
What are the categories of aircraft based upon?
Based on Vat (1.23Vs1g or 1.3Vso)
What is the radius of MSA?
25nm from the nav aid sevicing the approach
What is the guaranteed obstacle clearance when flying at MSA?
300m
When can you fly below MSA?
- aerodrome is visible
- aircraft is being radar vectored
- aircraft is flying a published procedure
What is a NDBL?
NDB locator (low powered NDB)
Which type of approach has a DH?
Precision approach
Which type of approach has MDA?
Non-precision approach
Does a precision approach require distance measuring?
Doesn’t have to but can do
What is the expected accuracy of the pilot on a precision approach?
Pilots expected to within half of a scale deflection of the CDI
What is the minimum DH for each category of ILS?
1 = 200ft 2 = 100ft 3A = none 3B = none 3C = none
What must be done if the glideslope is lost?
- it becomes a non precision approach
- carry out a missed approach or if you have time descend to LOC only minimum
If a missed approach is executed before MDA what must be done and why?
Must pass over missed approach point because missed approach procedure starts at the missed approach procedure
Who sets the MDA/DH and what does it depend on?
Operator and depends on category of a/c (can be more restrictive than OCH/OCA but not less)
What is the OCH/OCA and who sets it?
The minimum level for MDA/DH and is set by the state
Is a visual approach part of an instrument approach?
Yes (it’s finishing an instrument approach visually)
Who provides separation on a visual approach?
ATC
How many segments are on an instrument approach?
5
What are the 5 segments of an instrument approach?
1 = arrival 2 = initial approach 3 = intermediate approach 4 = final approach 5 = missed approach
Define a straight-in approach
- non precision = where FAT is less than 30 degrees of runway heading
When are you established on an NDB?
Within 5 degrees of FAT
What is the guaranteed obstacle clearance in the primary area?
300m (600m in high terrain areas)