What is one possible consequence of having an incorrect dihedral angle in wings?

Having an incorrect dihedral angle in wings primarily affects the aircraft's lateral stability. The dihedral angle is the angle between the wings and the horizontal plane, and it plays a crucial role in determining how the aircraft behaves in flight, especially when it comes to stability during rolls.

When the dihedral angle is too small or even negative, the aircraft can become laterally unstable. This means that if the aircraft begins to roll to one side, it will be less effective in self-correcting and returning to level flight. Instead, the roll may continue, leading to increased lateral instability. Conversely, a proper dihedral angle enhances the aircraft's ability to right itself, improving overall stability and control.

In contrast, reduced fuel efficiency, improved climbing ability, or higher stalling speeds are not directly related to the dihedral angle. Stability is critical for safe and efficient flight, making the correct dihedral angle an essential aspect of aircraft design and performance.