What is a primary function of flight spoilers?

The primary function of flight spoilers is to decrease lift without increasing airspeed. Spoilers are deployed on the wings during various phases of flight, particularly during descent and landing, to disrupt the airflow over the wings. This disruption decreases the wing’s lift significantly, which facilitates a quicker descent and helps the aircraft to land within a shorter distance.

Effectively managing lift is crucial during landing approaches because it allows for greater control of the aircraft's descent rate and prevents excessive altitude. By decreasing lift while maintaining a relatively constant airspeed, spoilers can assist pilots in achieving the desired landing profile, promoting safety and efficiency during critical flight operations.