INRAT Instrument Rating · Question
What is indicated by the symbol 'RA' on an RNAV approach plate?
On RNAV approach plates, 'RA' may sometimes be used in the context of GNSS equipment capabilities, but more accurately, RAIM (Receiver Autonomous Integrity Moni
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Question: What is indicated by the symbol 'RA' on an RNAV approach plate?
Answer options:
- Required Altitude guidance.
- Runway Alignment guidance. ✅ Receiver Autonomous Integrity Monitoring (RAIM) availability.
- The location of a remote altimeter setting source.
Correct answer: Receiver Autonomous Integrity Monitoring (RAIM) availability.
Explanation: On RNAV approach plates, 'RA' may sometimes be used in the context of GNSS equipment capabilities, but more accurately, RAIM (Receiver Autonomous Integrity Monitoring) is a key aspect of GNSS approach integrity, and 'RA' isn't a standard charting abbreviation for a specific approach element like course guidance.
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Question explanations
- When flying an NDB approach, what instrument is primarily used to track the inbound course?
- How does an aneroid barometer in an altimeter respond to a change in atmospheric pressure?
- What is the primary characteristic that differentiates a Localizer Performance (LP) approach from a Localizer
- When interpreting a TAF (Terminal Aerodrome Forecast), what does 'PROB30' indicate?
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