Pilot Physiological Factors

clear days. hazy days. cloudy nights.

concentrate on relative movement detected in the peripheral vision area. systematically focus on different segments of the sky for short intervals. continuously scan the sky from right to left.

peripheral vision by scanning small sectors and utilizing off-center viewing. a series of short, regularly spaced eye movements to search each 10-degree sector. regularly spaced concentration on the 3-, 9-, and 12-o’clock positions.

An extremely slow rate of breathing and insufficient oxygen. Emotional tension, anxiety, or fear. The excessive consumption of alcohol.

All traffic or terrain features appear to be farther away than their actual distance. Haze causes the eyes to focus at infinity. The eyes tend to overwork in haze and do not detect relative movement easily.

slowing the breathing rate, breathing into a bag, or talking aloud. increasing the breathing rate in order to increase lung ventilation. closely monitoring the flight instruments to control the airplane.

Aerosinusitis. Hyperventilation. Aerotitis.

The pilot is lazy and rushes to get done quickly. The pilot hurries to get done in order to rest. Fatigue may not be apparent to a pilot until serious errors are made (an impaired pilot is a dangerous pilot).

not exceed 10 degrees and view each sector at least 1 second. use peripheral vision by scanning small sectors and utilizing off-center viewing. be 30 degrees and view each sector for at least 3 seconds.

easily by an experienced pilot. by an ability to overcome sleep deprivation. as being in an impaired state.