Why is visibility crucial in visual navigation?

Visibility is crucial in visual navigation primarily because it helps pilots identify landmarks and avoid obstacles. In visual navigation, pilots rely heavily on visual references to determine their position and to navigate accurately. Being able to see these landmarks, such as towns, rivers, and terrain features, is essential for pilots to assess their location and ensure they are following the correct route.

Furthermore, good visibility allows pilots to spot potential hazards in the flight path, such as other aircraft, terrain, and obstacles like towers or power lines. This capability is vital for maintaining safety, as it enables the pilot to make timely decisions to avoid potential collisions or hazardous areas.

In contrast, while faster cruising speeds, communication with ground controllers, and fuel efficiency are important in aviation, they do not directly relate to the fundamental purpose of visibility in the context of visual navigation.