Final Answer:
When using a single sensor ASR−11 MSSR Beacon, separate aircraft operating less than 60 miles from the antenna by C) 15 miles.
Step-by-step explanation:
In aviation, the separation distance for aircraft operating less than 60 miles from the antenna when using a single sensor ASR−11 MSSR Beacon is specified as 15 miles (Option C). This separation distance is crucial for maintaining safe and efficient air traffic management. The ASR−11 (Airport Surveillance Radar) with MSSR (Monopulse Secondary Surveillance Radar) capabilities plays a vital role in surveillance and tracking of aircraft within the specified range.
The separation distance is carefully determined to prevent any potential conflicts or collisions between aircraft, ensuring the overall safety of air operations.
Option C is the answer.