During landing, when should reverse thrust idle be achieved?

Achieving reverse thrust idle at 60 KIAS during landing is based on the aircraft's handling characteristics and safety procedures. At this speed, the aircraft is typically low enough to ensure that full deceleration can occur without risking loss of control, while still allowing for effective directional control on the runway.

The procedure of transitioning to reverse thrust idle at this point ensures that the reverse thrust is no longer needed as the aircraft slows down significantly, allowing the pilot to focus on maintaining control and preparing for any necessary braking. Setting reverse thrust idle at a higher speed could lead to ineffective deceleration and increased risk of runway excursions or control issues, while setting it too low could hinder the aircraft's ability to decelerate efficiently.

Thus, the established standard of achieving reverse thrust idle at 60 KIAS promotes safety by balancing effective deceleration with optimal control of the aircraft during the landing phase.