What is the minimum degree divergence required for a departure course from the missed approach course in simultaneous operations on parallel runways?

• A. 15 degrees
• B. 30 degrees
• C. 45 degrees
• D. 60 degrees

Answer: (B)

In the case of simultaneous operations on parallel runways, it is crucial to maintain a safe separation between departing and arriving aircraft, particularly when one is following a missed approach. The minimum degree divergence required for a departure course to be considered safe from a missed approach course is 30 degrees. This degree of divergence helps to ensure that aircraft maintain sufficient lateral separation to avoid collisions or conflicts during critical phases of flight, especially when they are close to each other in the airport environment.

Choosing a divergence of less than 30 degrees runs the risk of overlapping flight paths, which could lead to safety hazards. By specifying 30 degrees, air traffic control provides a clear and standardized guideline that enhances safety while allowing for efficient operations. This regulation reflects the balance between necessary separation and the operational needs of aircraft, thereby fostering a safe environment for both departures and arrivals.