What phenomenon occurs during a constant rate spin?

During a constant rate spin, the phenomenon referred to as the Graveyard Spin occurs. This situation is particularly relevant in the context of flight training and understanding aircraft behavior. A Graveyard Spin can take place when a pilot experiences disorientation and fails to recognize the aircraft's orientation during a prolonged spin.

As a result, the pilot may mistakenly believe the aircraft is in a stable flight condition when it is actually still spinning. This can be exacerbated by the vestibular system's response to the continuous rotation, leading to an altered perception of the aircraft's attitude. Training and awareness of this phenomenon are vital because it emphasizes the importance of maintaining proper situational awareness and relies heavily on instrument cross-checking rather than solely on sensory input.

The other options describe different aviation-related illusions and phenomena. The Giant-Hand Phenomenon relates to spatial disorientation in a different context, typically involving the perception of the outside world. The Coriolis Illusion occurs during rapid head movements in a banked turn, which can confuse the pilot about their actual movement. The Pitch-Up Illusion results from misinterpretation of the aircraft's pitch, often when an aircraft is in a state of slight nose-up attitude. Understanding these distinctions helps pilots better navigate potential disorientation scenarios