What is the function of flight spoilers?

The function of flight spoilers is to reduce lift without decreasing airspeed. When deployed, spoilers disrupt the airflow over the wing, leading to a reduction in lift generated by the wing. This capability is particularly useful during landing approaches where a pilot may want to decrease lift to facilitate descent and improve control without having to reduce airspeed significantly. By allowing the aircraft to descend more rapidly while maintaining a safe speed, spoilers contribute to effective landing maneuvers.

In addition, while spoilers can also aid in roll control, their primary function and design are focused on reducing lift. The other options, while related to aspects of an aircraft’s aerodynamic performance, do not accurately represent the core purpose of flight spoilers in relation to handling lift dynamics.