What is true about flaps on swept wings?

Flaps on swept wings generally experience reduced effectiveness compared to their performance on straight wings. This is primarily due to the aerodynamic characteristics inherent to swept-wing designs.

When flaps are deployed on a swept wing, the change in airflow and the resulting lift distribution are influenced by the angle of the wing sweep. The airflow can become detached more readily, leading to less effective lift generation across the wing. Additionally, as the angle of attack increases with flap deployment, the benefits of increased lift are often diminished due to the wing’s design and the resulting aerodynamic interference.

While flaps still provide increased lift and drag when deployed, the extent to which they enhance performance is not as pronounced as it is in straight-wing configurations. Therefore, stating that flaps have reduced effectiveness on swept wings accurately reflects their performance characteristics in relation to the wing design.