What is the final approach speed with a take-off flap setting when wind speed is reported at 10 knots gusting to 20 knots?

To determine the final approach speed with a take-off flap setting in wind conditions of 10 knots gusting to 20 knots, it is important to account for the increased wind variability. In general, the approach speed should be adjusted for both steady wind and gusts.

When gusting is present, it is advisable to add an additional margin to the final approach speed to ensure control and stability during the landing phase. The take-off flap setting typically involves an approach speed that is a certain percentage above the stall speed in landing configuration, but gusty conditions would further necessitate a slight increase in that speed to account for potential wind shear and turbulence.

In practice, the guidelines suggest calculating a final approach speed that not only considers the baseline required for the aircraft configuration but also provides a buffer against the wind’s impact. For wind conditions of 10 knots, the base speed is adjusted to maintain safety and control. The gust factor pushes this speed to a higher value, leading us to select an appropriate number that reflects these considerations.

The final approach speed of 110 KIAS effectively incorporates these elements, providing a safe margin for control during the final phases of landing in gusty conditions. This adjustment is crucial for maintaining aircraft control, ensuring a successful landing in