Which equipment is required for CAT II ILS operations?

For Category II Instrument Landing System (ILS) operations, the requirement for having a NAV Display in Compass/Map format on each side is essential because it ensures that the pilots have continuous and clear situational awareness of their approach path, which is crucial during low visibility conditions. The Compass/Map format displays important navigation information that aids in aligning the aircraft properly for landing, particularly when operating under the stringent parameters of CAT II procedures.

During CAT II ILS approaches, pilots rely heavily on their instrumentation, which needs to be highly reliable and accurately depict the critical flight parameters. Having the NAV Display in this format on both sides of the cockpit allows for redundancy; should one display fail, the other will still provide vital information.

While other equipment like flight directors, radar altimeters, and transmissometers contribute to the overall safety and effectiveness of flight operations, the dual NAV Display requirement in the specified format is specifically mandated as part of the criteria necessary for ensuring successful and safe CAT II ILS landings. This dual display setup enhances situational awareness and ensures that both pilots can verify the information, further promoting safety during low visibility approaches.