Which of the following is a requirement for stabilized approaches?

A stabilized approach is a critical phase of flight where the aircraft is in a predictable and controlled state as it approaches landing. Among the given options, the requirement that aligns best with the concept of a stabilized approach is the ability to land in one-third of the available landing distance. This indicates that the aircraft is at the appropriate configuration, speed, and descent rate, which together contribute to a safe and controlled landing within a reasonable margin.

Being able to land in one-third of the available landing distance emphasizes the importance of maintaining control during the approach, accounting for factors such as aircraft performance, wind conditions, and runway characteristics. This requirement ensures that pilots are prepared to react to any unforeseen circumstances and have a margin of safety during the landing phase.

Other options may pertain to important aspects of flight operation, but they do not encapsulate the essence of a stabilized approach as comprehensively. For instance, maintaining approach speed is vital, but it does not inherently guarantee a stabilized approach if other factors are not considered. Similarly, desiring to descend no faster than 1,000 feet per minute is a good practice but does not address the overall stability needed for landing. Completing the approach checklist is certainly important for operational safety but is not a definitive requirement for stabilizing