What does the high-speed visor incorporate to provide friction that will hold the visor in up to 600 knots equivalent air speed?

The high-speed visor is designed to maintain its position and integrity at high speeds, up to 600 knots equivalent air speed, by utilizing a specifically designed rubber edge roll cover. This cover is engineered to create friction when the visor is deployed, ensuring that it does not slip or move unexpectedly during flight. The material and design of the rubber edge facilitate a secure grip, effectively providing stability even under the extreme conditions experienced during high-speed aerial maneuvers.

The other options may contribute to different aspects of the visor’s functionality, such as structural support or improving aerodynamics, but they do not specifically address the mechanism that generates the necessary friction to keep the visor locked in place at high speeds. A rubber edge roll cover is essential for achieving the reliable performance required in such operational environments.