Lesson 21 Flashcards
SIAPs are designed to:
- provide an IFR descent from an en route environment to a point where a safe landing can be made
- guide aircraft through IFR conditions to a point where the runway environment can be seen
How often are SIAPs published?
every 56 days
SIAP charts provide the method to descend and land safely in _________ conditions.
low visibility
Name the 4 segments of an instrument approach.
- Initial
- Intermediate
- Final
- Missed
Standard Instrument approach procedures must begin ________.
at an initial approach fix (IAF), or final approach fix (FAF) if there is not an IAF.
Initial Approach Segment
b/t initial approach fix and intermediate approach fix or the point where the aircraft is established on the intermediate course or final approach course
Intermediate Approach Segment
the segment between the intermediate fix or point and the final approach fix
Final Approach Segment
segment b/t the final approach fix or point and the runway, airport, or missed approach point
Missed Approach Segment
segment b/t the missed approach point or the point of arrival at decision height and the missed approach fix at the prescribed altitude
Missed Approach Segment
segment b/t the missed approach point or the point of arrival at decision height and the missed approach fix at the prescribed altitude
IAPs are classified as either _____ or _____.
precision; non-precision
What approach provides both lateral and vertical guidance with a ground based support infrastructure?
precision approaches
What approach provides lateral course guidance only?
non-precision approaches
Name the 2 types of Precision Approaches:
PAR / ILS
Name the types of Non-Precision Approaches:
- RNAV (GPS)
- LOC
- VOR
- VOR/DME
- TACAN
- NDB
- ASR
What are the primary components of the ILS System?
- localizer (lateral guidance)
- glideslope (vertical guidance)
- marker beacons (provide range info along the appch path)
- approach lights (assist w/ transition from instrument to visual)
T/F: An aircraft must be in instrument flight conditions to execute an IAP.
False
An approach is termed “non-precision” because it ______.
provides lateral guidance only
The purpose of an ______ is to portray the aeronautical data which is required to execute SIAPs to airports.
SIAP Chart
The 6 sections of the IAP are:
- margin info
- pilot briefing information
- plan view
- airport diagram
- profile view
- minimums section
Minimum Safe Altitude (MSA)
emergency altitude to be used within 25 NM of the NAVAID upon which the approach is predicated; ensures 1,000 ft obstruction clearance, but does not ensure NAVAID freq reception
Terminal Arrival Area (TAA)
for use by aircraft equipped with advanced nav such as a Flight Management System or Global Positioning System; replaces the MSA and provides minimum altitudes with standard obstacle clearance depending upon the direction from which the aircraft is arriving
Decision Altitude (DA)
altitude at which a decision must be made during a precision approach to either continue the approach or execute a missed approach
Minimum Descent Altitude (MDA)
lowest altitude to which descent is authorized on final approach where no electronic glide slope is provided (non precision approach)
What does the lightning bolt depict?
Final Approach Fix (FAF) when flown as a full ILS approach with glide slope
What does the maltese cross depict?
Final Approach Fix (FAF) when flown as a localizer approach (when the glide slope is inoperative) (non precision approach)
What does the maltese cross depict?
Final Approach Fix (FAF) when flown as a localizer approach (when the glide slope is inoperative) (non precision approach)
Height Above Touchdown Zone (HAT)
height of the decision height or minimum descent altitude about the highest runway elevation in the touchdown zone (first 3000 ft of the runway)
Height Above Airport (HAA)
height of minimum descent altitude above the published airport elevation
In a radar environment, to vector an aircraft for a visual approach the ceiling at the airport of intended landing must be ________ above the minimum vectoring altitude and the visibility is 3 miles or greater.
500 ft
Contact Approach
approach wherein an aircraft on an IFR flight plan having an atc authorization, operating clear of clouds with at least 1sm flight visibility and a reasonable expectation of continuing to the destination airport in those conditions, may deviate from the instrument approach procedure and proceed to the destination airport by visual reference to the surface
