What is the coverage degree provided by the RSDS around the aircraft?

The coverage degree provided by the RSDS (Radar Surveillance Data System) around the aircraft is 360 degrees. This comprehensive 360-degree coverage indicates that the RSDS can monitor and detect objects in all directions around the aircraft. This feature is essential for ensuring situational awareness, allowing for effective navigation and the ability to detect potential threats or obstacles from any angle. Such an attribute is critical for maintaining safety and operational efficiency in aviation, as it provides a full sphere of surveillance, ensuring no blind spots exist in the aircraft's immediate vicinity.

In contrast, the other coverage degrees listed do not provide the necessary all-around surveillance needed in aviation. For instance, 180 degrees would limit the coverage to a half-sphere, which could leave areas unmonitored. Similarly, 270 degrees, while broader, still does not encompass full situational awareness, and 90 degrees would restrict observation to only a quarter of the aircraft's surroundings. Therefore, having a 360-degree coverage is paramount for effective monitoring and safety in flight operations.