INRAT Instrument Rating · Question
What is the typical difference between a PAR (Precision Approach Radar) and an ASR (Airport Surveillance Radar) approach?
PAR (Precision Approach Radar) provides precise lateral and vertical guidance to the pilot via ATC voice instructions down to decision height, while ASR (Airpor
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Question: What is the typical difference between a PAR (Precision Approach Radar) and an ASR (Airport Surveillance Radar) approach?
Answer options:
- PAR provides only lateral guidance, while ASR provides both lateral and vertical.
- PAR requires specialized onboard equipment, whereas ASR uses ground-based radar only. ✅ PAR provides precise lateral and vertical guidance to the pilot, while ASR provides only lateral guidance and advisory vertical guidance.
- PAR is suitable for all aircraft types, while ASR is restricted to military use.
Correct answer: PAR provides precise lateral and vertical guidance to the pilot, while ASR provides only lateral guidance and advisory vertical guidance.
Explanation: PAR (Precision Approach Radar) provides precise lateral and vertical guidance to the pilot via ATC voice instructions down to decision height, while ASR (Airport Surveillance Radar) only provides lateral guidance and advisory vertical guidance, making it a non-precision approach.
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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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