What is the maximum flap extension speed for Flaps 5?

The maximum flap extension speed for Flaps 5 is indeed 140 KIAS. This limitation is crucial for safe aircraft operation, as exceeding this speed while deploying flaps can result in structural damage to the wings or control issues due to excessive aerodynamic forces acting on the flap surfaces.

Flaps are designed to increase lift and drag characteristics of the aircraft at lower speeds, thus allowing for slower flight during takeoff and landing phases. Each flap setting has a specific speed limitation to ensure that the flap systems operate within their designed parameters. Exceeding the maximum speed can lead to unintended consequences, such as flutter or failure of the flap mechanism.

Understanding these limitations is essential for pilots to conduct safe flight operations, particularly during approach and landing phases where flap settings are regularly used. Knowing the correct speeds helps maintain the integrity of the aircraft while optimizing performance in varying flight conditions.