Plain English Meaning
The five ways the body takes in information from the world: seeing, hearing, feeling, smelling, and tasting. Everything a pilot learns or notices while flying starts with one or more of these.
Full Definition
The five physiological channels through which a person gathers information about the surrounding environment: sight, hearing, touch, smell, and taste. In aviation instruction, these are recognized as the primary inputs through which a pilot perceives the aircraft, the flight environment, and the situation, and through which all subsequent learning and decision-making begins.
Context Anchor
Seen in aviation instructor discussions of perception, learning, situational awareness, and how pilots take in information during flight.