What is a characteristic of En-route RNP 2.0?

The characteristic of En-route RNP 2.0 that stands out is its requirement to ensure accurate flight path tracking within ±2 nautical miles (NM). This specification means that aircraft operating under RNP 2.0 must maintain their position within this tolerance of the intended flight path, which is crucial for the safety and efficiency of flight operations. Achieving such precision enhances air traffic management capabilities and allows for closer spacing of aircraft, which is particularly beneficial in crowded airspace.

In the context of navigation, RNP (Required Navigation Performance) defines the minimum performance requirements for a specific air navigation facility. Unlike other navigation methods that might rely solely on ground-based systems or visual aids, RNP allows for more flexible flight paths and includes satellite-based navigation as one of its components. This versatility supports modern air traffic requirements and enhances situational awareness for pilots while maintaining adherence to safety regulations.