What should be the primary focus during the marshal phase in terms of aircraft management?

During the marshal phase, the primary focus should be on positive control and spacing of the aircraft. This phase of air traffic management involves managing aircraft that are holding before they are directed to land. It is crucial to ensure that all aircraft maintain appropriate separation to prevent any risk of collisions and to facilitate a smooth flow of aviation.

Positive control involves actively monitoring and directing all aircraft within the holding pattern, making sure they follow the designated flight paths and altitude assignments. Proper spacing is vital as it allows air traffic controllers to manage the arrival sequence effectively, accommodating variables such as weather conditions and runway availability. By maintaining positive control and appropriate spacing, air traffic controllers can ensure safety and efficiency throughout the marshal phase.

While factors like fuel efficiency, aircraft configuration, and communication clarity are important in overall air traffic management, they become secondary to ensuring that all aircraft remain safely separated and controlled during this critical phase.