During landing under calm wind and clear skies, what should be done to approach airspeed to avoid stalling due to turbulence?

To ensure a safe landing in calm wind and clear skies, it is recommended to increase approach airspeed slightly above normal. This adjustment is crucial because maintaining a slightly higher airspeed provides a buffer against sudden turbulence that may be encountered just before touchdown. Turbulence can cause unexpected changes in lift and may result in a stall if the aircraft is flying too slowly. By increasing the approach airspeed, the pilot enhances control and stability during the critical landing phase, allowing for a more forgiving response to potential updrafts or downdrafts.

In contrast, reducing approach airspeed below normal would increase the risk of a stall during turbulence, which is hazardous. Keeping the approach airspeed at normal levels might not account for turbulence that can occur near the ground, especially in the absence of wind. Lastly, deciding that no changes to approach airspeed are necessary disregards the importance of adapting to conditions that can change rapidly during landing. Thus, slightly increasing the approach airspeed serves as a proactive and cautious measure to ensure safety in potentially turbulent conditions.