Stage 41 Flashcards
What is Decision Height?
(DH) The height at which a decision must be made during an ILS or PAR instrument approach either to continue the approach or to execute a missed approach
What is the Minimum Descent Altitude?
(MDA) The lowest altitude, expressed in MSL, to which descent is authorized on final approach or during circle-to-land maneuvering in execution of an IAP where no electronic glide slope is provided (i.e., nonprecision approach)
What is the Maximum Authorized Altitude?
(MAA) A published altitude representing the maximum usable altitude or flight level for an airspace structure or route segment
What is the Minimum Crossing Altitude?
(MCA) The lowest altitude at certain fixes at which an aircraft must cross when proceeding in the direction of a higher minimum en route IFR altitude (MEA)
What is the Minimum Enroute Altitude?
(MEA) The lowest published altitude between radio fixes that assures acceptable navigational signal coverage along the entire route segment and meets obstacle clearance requirements between those fixes
What is the Minimum Holding Altitude?
(MHA) The lowest altitude prescribed for a holding pattern that assures navigational signal coverage and communications and meets obstacle clearance requirements
What is the Minimum Obstruction Clearance Altitude?
(MOCA) The lowest published altitude in effect between radio fixes on VOR airways, off-airway routes, or route segments that meets obstacle clearance requirements for the entire route segment and that assures acceptable navigational signal coverage only within 25 SM (22 NM) of a VOR
What is the Minimum Reception Altitude?
(MRA) The lowest altitude at which an intersection can be determined
What is the Minimum Safe/Sector Altitude?
(MSA) Altitudes depicted on IAP charts that provide at least 1,000 ft. of obstacle clearance normally within a 25 NM radius of the navigational facility for the approach or missed approach. MSA is for emergency use only and does not necessarily assure acceptable navigational signal coverage.
What is Minimum Vectoring Altitude?
(MVA) The lowest MSL altitude at which an IFR aircraft will be vectored by a radar controller, except as otherwise authorized for radar approaches, departures, and missed approaches. The altitude meets IFR obstacle clearance requirements.
What is the Off-Route Obstruction Clearance Altitude?
(OROCA) An off-route altitude that provides obstruction clearance with a 1,000 ft. buffer in nonmountainous terrain and a 2,000 ft. buffer in designated mountainous areas within the U.S. This altitude may not provide signal coverage from ground-based navigational aids, ATC radar, or communications coverage.
What are the 4 Approach segments?
- Initial (IAF)
- Intermediate (IF)
- Final (FAF/FAP)
- Missed (MAP)
What is the purpose of an IAF?
(Initial Approach Fix) To provide a method for aligning the a/c with the approach course by using an arc procedure, course reversal, or by following a route that intersects the final approach course
What is the purpose of an IF?
(Intermediate Fix) To position the a/c for final descent to the airport
What is the purpose of a FAF/FAP?
(Final Approach Fix/Final Approach Point) To allow safe navigation to the point where, if the required visual references are available, you can continue the approach to landing, but if you cannot see the required cues at the MAP you must execute the Missed Approach Procedure
What is the purpose of an MAP?
(Missed Approach Point) To allow safe navigation from the MAP to a point where another approach can be attempted or you can continue to another airport
Where is the IF located?
- If Indermediate Fix is shown, it is usually aligned within 30 degrees of the Final Approach Course
- If Intermediate Fix is NOT shown, it begins at point where you proceed inbound to the FAF while aligned with the Final Approach Course
Where is the FAF/FAP located?
- Precision App: Begins where the GS is intercepted at the minimum glideslope intercept altitude
- Non-precision App: Will begin at a designated FAF or a point where you’re established on the Final Approach Course. Will begin at a FAP when NO FAF is designated, typically where the procedure turn intersects the Final Approach Course inbound
Where is the MAP located?
- Precision App: Begins at a designated altitude on the GS called the DH (Decision Height)
- Non-precision App: Begins at a fix defined by a NAVAID or after a specified period of time after crossing the FAF
What does it mean to be cleared “as filed”?
This means ATC has approved your flight plan, and that you can expect clearances and vectors as filed
List the ways you could obtain a clearance at a non-towered airport.
RCO, GCO, FSS or Clearance Delivery Line
What does a cruise clearance allow you to do?
- Fly anywhere within your block of airspace, between the Minimum IFR Altitude and up to and including the altitude that is specified in the cruise clearance
- If you verbalize a descent to ATC, you may not go go back above that altitude again w/o clearance
- Also authorizes the approach clearance
What must you do if you are told to “hold for release”?
You can get the clearance, but you cannot leave!
What is a clearance void time?
You must be airborne by this time or you must call and get another release
If cleared VFR-on-top, what must you do?
- Follow VFR and IFR flight rules
Is a VFR-on-top clearance an IFR clearance?
YES!!!!
What are different kinds of departure procedures, and where do you obtain information about departure procedures?
- SIDs and ODPs
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