What is the field of view for the ANVIS?

The ANVIS, or Aviation Night Vision Imaging System, is designed with a field of view that allows pilots and operators to maintain situational awareness while navigating in low-light conditions. The correct answer is based on the technical specifications of the ANVIS, which provides a 40-degree field of view. This wide field of view is crucial as it enables users to see a substantial amount of their surroundings, assisting in both navigation and target acquisition. A broader field of view helps reduce the tunnel effect that can occur with narrower fields of view, thereby enhancing safety and operational efficiency in nighttime environments. The options that specify 30 degrees, 50 degrees, and 60 degrees do not align with the actual specifications of the ANVIS and therefore do not provide the effective situational awareness intended for this type of night vision goggle.