If wind shear is reported before take-off, what is the most advisable action?

When wind shear is reported before take-off, delaying the take-off is a prudent and advisable action. Wind shear, characterized by rapid changes in wind speed and direction, can pose significant risks during the critical phases of flight, particularly during take-off and climb. By postponing the departure, the flight crew allows time to assess the situation, gather more updated weather information, and evaluate the safety of proceeding with take-off under potentially hazardous conditions.

Delaying the take-off can also provide opportunities for changes in weather patterns, the potential dispersal of the wind shear, or other safety measures to be put in place. It is essential to prioritize safety and minimize the risk of encountering adverse conditions during the flight's initial phase.

While adjusting climb speed, thrust reduction, or climbing at a shallow angle might seem like viable strategies in a different context, they do not mitigate the immediate risks posed by wind shear. Instead, a decision to delay ensures that the crew and aircraft are in the safest possible circumstances before committing to flight.