What is a common effect of the Coriolis Illusion during flight?

The Coriolis Illusion occurs when a pilot experiences a strong sense of motion that is not actually occurring, often resulting from rapid head movement combined with a sustained bank in flight. In this situation, the pilot may feel as though the aircraft is level when it is actually in a bank. This misperception is due to the displacement of the fluid in the inner ear, which is responsible for balance and orientation.

When the pilot moves their head quickly while turning or transitioning from a bank to straight and level flight, the sensation of the aircraft's true attitude can be skewed. This can lead to decisions based on this incorrect feeling of orientation, potentially resulting in dangerous flight situations if not recognized and corrected. Thus, the experience of feeling level when actually banking is a direct manifestation of the Coriolis Illusion, highlighting the importance of instrument cross-checking during flight.

In contrast, the other provided options relate to different sensations or miscalculations that may occur during flight but do not align with the specific characteristic effects induced by the Coriolis Illusion.