Definition
Information detected by one of the human senses — sight, hearing, touch, balance, or smell — that the brain uses to determine the body's position, motion, or orientation in space. In aviation, the three primary sensory cues used by pilots are visual cues (what the eyes see), vestibular cues (sensations of motion and balance from the inner ear), and proprioceptive or 'seat-of-the-pants' cues (pressure and tension felt by muscles, joints, and skin).
Plain English
A signal your senses give your brain that tells you where you are, which way is up, and how you're moving.
Context Anchor
Pilots encounter this term in discussions of night flying, instrument flying, landings, and situations where the outside view is limited or misleading.
Derivation
From Latin sensus (perception, feeling) and Middle English cue (a signal to act). Together: a signal received through the senses. The word 'cue' is helpful here — sensory information acts as a prompt the brain reacts to, often without conscious thought.
Why Pilots Care
Sensory cues can conflict with reality during flight, creating illusions that lead to loss of control if the pilot does not cross-check the instruments.
Grounding Statement
If the horizon is hard to see, your body may give you a strong feeling about the airplane’s motion, but that feeling may not match what the airplane is actually doing.
Intuition Check
Do not assume a sensory cue is always correct. In aviation, a sensory cue is information from the senses, and that information must be checked against reliable references when conditions are unclear.
Example Sentence 1
Without outside visual references in the clouds, the pilot ignored the misleading sensory cues from his inner ear and flew the instruments.
Example Sentence 2
When entering clouds the visual sensory cues disappeared, forcing the pilot to rely entirely on the attitude indicator.