Aeronautical Terms beginning with S
Scan
A procedure used by the pilot to visually identify all resources of information in flight.
Scenario-based training (SBT)
Training method that uses a highly structured script of real world experiences to address aviation training objectives in an operational environment.
Semicircular canal
An inner ear organ that detects angular acceleration of the body.
Signal-to-noise ratio
An indication of signal strength received compared to background noise, which is a measure of the adequacy of the received signal.
Single-pilot resource management (SRM)
The ability for a pilot to manage all resources effectively to ensure the outcome of the flight is successful.
Situational awareness
The accurate perception and understanding of all the factors and conditions within the four fundamental risk elements that affect safety before, during, and after the flight.
Skills and procedures
The procedural, psychomotor, and perceptual skills used to control a specific aircraft or its systems. They are the airmanship abilities that are gained through conventional training, are perfected, and become almost automatic through experience.
Somatogravic illusion
The misperception of being in a nose-up or nose-down attitude, caused by a rapid acceleration or deceleration while in flight situations that lack visual reference.
Spatial disorientation
The state of confusion due to misleading information being sent to the brain from various sensory organs, resulting in a lack of awareness of the aircraft position in relation to a specific reference point.
Speed Sense
The ability to sense instantly and react to any reasonable variation of airspeed.
Stagnant hypoxia
A type of hypoxia that results when the oxygen-rich blood in the lungs is not moving to the tissues that need it.
Stress
The body’s response to demands placed upon it.
Stress management
The personal analysis of the kinds of stress experienced while flying, the application of appropriate stress assessment tools, and other coping mechanisms.
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