What is the required action to achieve reverse idle during landing?

Achieving reverse idle during landing involves ensuring that the aircraft is slowed to a specific airspeed that allows the throttle to go to idle while still being within the safe flight regime necessary for landing. The correct airspeed, in this case, is 60 KIAS (Knots Indicated Airspeed).

Landing with the throttle at reverse idle is crucial for managing descent rate and ensuring control during the landing phase without risking an excessive drag that could lead to a stall. The airspeed chosen must be low enough to reduce speed effectively while still maintaining sufficient lift and control over the aircraft's descent. At 60 KIAS, the aircraft is generally in a stable position where reverse thrust can be engaged safely, allowing for smoother deceleration upon touchdown.

In this scenario, the other airspeeds offered may either be too high or not optimal for effective reverse thrust application, which is critical for safe landing operations.