AP108 Flashcards
What are the three types of spatial disorientation?
- Unrecognized
- Recognized
- Incapacitating
What is the most dangerous type of spatial disorientation?
Unrecognized
What is the somatosensory system often called?
“Seat of the pants”
The somatosensory system is extremely reliable in flight (T/F)
False
What does the somatosensory system consist of?
Tactile pressure receptors in the skin, muscles, tendons, and joints
An somatogravic (otolith) illusion is an illusion caused by your somatosensory system (T/F)
False, it is caused by your vestibular system
What are two common somatogravic illusions?
- False pitch up/down
2. G-Excess effect
How is the G-Excess effect created physiologically and what is a common example of this in aviation?
The otoliths settle in the direction of the G creating a “Perceived Down” effect.
If you are looking in the direction you are banking while pulling G’s, it gives the effect that you are not banking enough and may make you add too much bank angle
What is a common somatogyro illusion and what does it cause?
The Leans. It causes an incorrect feeling of roll/bank.
For the leans, what is the differentiating factor between recognizing the illusion and having an unrecognized illusion?
For an recognized illusion, you enter a supra-threshold bank.
For an unrecognized solution, you enter a sub-threshold bank
What are two common situations the lack reliable visual effects and often cause spatial D?
- Night
2. Weather
What is the main way to prevent and fix spatial D
Trust your instruments?
Motion sickness will cease after your flight (T/F)
False, it may continue after motion stops
Time, type, and duration of mission are important factors that can contribute to spatial D (T/F)
True
