Instrument Approaches Flashcards
What part of the federal aviation regulations deals with instrument approaches
Part 97 of the FAR describes standard instrument approaches
What is TERPS stand for ?
The United States Standard for Terminal Instrument Procedures describes a standardized method for designing and evaluating instrument flight procedures to be used by all personal responsible for the preparation approval and preparation of IFPs
Simply stated what is the goal of an instrument approach?
To descent though clouds and find the airport
Why categories are instruments approaches divided into?
Precision
Non-Precision
Approaches with vertical guidance
What is a non-precision approach?
The airplane is flown along a navigation course to a minimum descent altitude (MDA). The flight is then flown at the MDA with the pilot hunting for the airport. If it is not sighted by a specified point a missed approach must be initiated
The point is specified by ground speed and time in the bottom right of the chart or specified on the approach
What is a precision approach?
The airplane is flown along a navigation course and a vertical guide path to a DA (Decision Altitude) if the runway is not in sight at this altitude you must initiate a missed approach
What’s the difference between Decision Altitude and Decision Height
Decision Altitude is measured above sea level (MSL)
Decision height is measured above ground level (AGL)
What is an approach with vertical guidance? (APV)
APV includes lateral course and vertical glide path information buts it’s not as accurate as a precision approach
What three item must be true to descend below MDA or DA on an instrument approach?
- Must have the runway, runway markings, approach lights or runway lights in sight
- The visibility cannot be less than specified on the approach chart
- Descent to the runway must be made at the normal rate
MDA minimum descent altitude
DA descent altitude
When is a procedure turn not authorized on an instrument approach? Note 4 Reasons
- NoPT on chart
- Procedure turn NA on chart
- Radar vectors to final (Requires ATC clearance)
- Times approach from hold
How is a mandatory altitude show on a chart?
The altitude has a line above and below it
____________
5800
—————-
How is a minimum altitude show on a chart?
A minimum altitude only has a line below it
5800
———-
How is a maximum altitude shown on a chart?
A maximum altitude has a line above the altitude
____________
5800
How is an aircraft approach category determined and how many categories are there ?
The category is based on the aircrafts final approach speed Vref or Vso x 1.3
Categories A<91 knots B 91- 120 C 121 - 140 D 141 - 165
What is a Maltese cross a symbol for ?
The fixed approach point
What are the components of an approach chart?
Pilot briefing, Plan View, Profile view and minimums
What part of the FARs describe instrument approaches ?
FAR 97
Where is criteria used to establish, review and approve instrument approaches is found where
TERPS
Terminal Instrument Procedures (TERPS)
What are three categories are instrument approaches divided into?
- Precision
- Non-Precision
- Approaches with vertical guidance
What is a non-precision approach ?
The airplane is flown along a navigation course to a minimum descent altitude if the runway is not in sight by a specified point then you must initiate a missed approach
What does MDA mean?
Minimum Descent Altitude used for no precision approach
What is a precision approach?
The airplane is flown along a navigation course and a vertical glide path to a decision altitude. If the runway is not in sight at this altitude you must initiate a missed approach
What does DA stand for?
Decision Altitude for a precision approach