What is the maximum coupled intercept angle for NAV and LOC?

The maximum coupled intercept angle for the navigation (NAV) and localizer (LOC) on the King Air 350 is 90°. This angle is crucial because it defines the limits within which the autopilot can effectively intercept and track the desired course or approach path. When the intercept angle is too steep, the autopilot may struggle to maintain accurate tracking, potentially leading to missed approaches or unstable flight behaviors.

Understanding this limitation is essential for pilots, as it informs their approach decisions and the setup of the aircraft's navigation systems. Adhering to this maximum intercept angle helps maintain safe and stable operations during approaches, especially in environments where precision is critical, such as in instrument meteorological conditions.