What is the required landing distance minimum for a Cat 1 landing behind another Cat 1 during daytime?

The required landing distance minimum for a Category 1 (Cat 1) landing behind another Cat 1 aircraft during the daytime is 3,000 feet. This requirement is established to ensure adequate separation between aircraft, minimizing the risk of wake turbulence encounters and providing a safe margin for a successful landing.

When an aircraft lands, it generates wake turbulence, which can significantly affect the performance and control of following aircraft, particularly if they are of a similar classification. The 3,000-foot minimum helps to ensure that the trailing aircraft has enough separation in both the lateral and longitudinal dimensions to mitigate these effects, allowing for safer operations under controlled conditions. This standard allows air traffic controllers to manage arrivals efficiently, balancing the need for safety while maintaining an orderly flow of traffic in busy airspace and airports.

By adhering to this minimum, the aviation system can minimize potential hazards while allowing for operational efficiency during peak landing periods.