CH.VIII.L.R2
Risk managementSpatial disorientation and optical illusions.
From the FAA library
- Chapter 3: Human Factors › Demonstration of Spatial Disorientation › Diving or Rolling Beyond the Vertical Plane
time the maneuver so the roll is stopped as the pilot returns his or her head upright. An intense disorientation is usually produced by this maneuver, and the pilot experiences the sensation of falling downward into the direction ... then tells the pilot to look up and recover. The benefit of this exercise is the pilot experiences the disorientation while flying the aircraft. Coping with Spatial Disorientation To prevent illusions and their potentially disastrous consequences, pilots can: 1. Understand…
- Chapter 17: Aeromedical Factors › Diving or Rolling Beyond the Vertical Plane › Coping with Spatial Disorientation
Coping with Spatial Disorientation To prevent illusions and their potentially disastrous consequences, pilots can: 1. Understand the causes of these illusions and remain constantly alert for them. Take the opportunity to experience spatial disorientation illusions in a device, such ... Barany chair, a Vertigon, or a Virtual Reality Spatial Disorientation Demonstrator. 2. Always obtain and understand preflight weather briefings. 3. Before flying in marginal visibility (less than 3 miles) or where a visible horizon is not evident, such as flight…
- Chapter 17: Aeromedical Factors › Haze › Optical Illusions
Haze The sensations that lead to illusions during instrument flight conditions are normal perceptions experienced by pilots. These undesirable sensations cannot be completely prevented, but through training and awareness, pilots can ignore or suppress them by developing absolute reliance ... flight instruments. As pilots gain proficiency in instrument flying, they become less susceptible to these illusions and their effects. Optical Illusions Of the senses, vision is the most important for safe flight. However, various terrain features and atmospheric conditions…
- Chapter 17: Aeromedical Factors › Health and Physiological Factors Affecting Pilot Performance › Visual Illusions
Turn stopped Sensation of turning in opposite direction as moving fluid deflects hairs in opposite Inversion Illusion An abrupt change from climb to straight-and-level flight can stimulate the otolith organs enough to create the illusion of tumbling backwards ... known as “inversion illusion.” The disoriented pilot may push the aircraft abruptly into a nose-low attitude, which may intensify this illusion. Elevator Illusion An abrupt upward vertical acceleration, as can occur in an updraft, can stimulate the otolith organs…
- Chapter 3: Human Factors › Demonstration of Spatial Disorientation
Demonstration of Spatial Disorientation There are a number of controlled aircraft maneuvers a pilot can perform to experiment with spatial disorientation. While each maneuver normally creates a specific illusion, any false sensation is an effective demonstration of disorientation. Thus, even ... objectives in demonstrating these various maneuvers. 1. They teach pilots to understand the susceptibility of the human system to spatial disorientation. 2. They demonstrate that judgments of aircraft attitude based on bodily sensations are frequently false. 3. They help lessen…
- Chapter 7. Safety of Flight › Section 6. Potential Flight Hazards › 7-6-14. Flying in Flat Light, Brown Out Conditions, and White Out Conditions
Flying in Flat Light, Brown Out Conditions, and White Out Conditions a. Flat Light. Flat light is an optical illusion, also known as “sector or partial white out.” It is not as severe as “white out” but the condition causes ... nearby objects which provide the outside visual references necessary to control the aircraft near the ground. This can cause spatial disorientation and loss of situational awareness leading to an accident. 1. The following factors will affect the probability and severity…