What is the GPS CDI sensitivity for the enroute phase?

The GPS Course Deviation Indicator (CDI) sensitivity for the enroute phase is indeed 5 nautical miles on either side. This means that during the enroute phase of flight, the CDI will provide a divergence indication when the aircraft is off course by more than 5 nautical miles, allowing pilots to maintain proper navigation within a reasonable range.

In this phase, the CDI has a wider sensitivity setting, which is designed to accommodate the higher ground speeds typically encountered during cruising flight and allows for less stringent corrections compared to terminal or approach phases. This broader range helps in maintaining situational awareness without prompting unnecessary alerts for minor deviations.

Understanding this sensitivity is crucial for pilots, especially during long-distance navigation, as it helps in managing course adjustments without being overly reactive to minor deviations. Effective navigation relies on these sensitivities to provide both a clear and manageable scope for monitoring position relative to the intended flight path.