AHF

Abrupt head movement during a prolonged constant rate turn in IMC or simulated instrument conditions can cause. pilot disorientation. false horizon. elevator illusion.

Without visual aid, a pilot often interprets centrifugal force as a sensation of. rising o r falling. turning. motion reversal.

A sloping cloud formation, an obscured horizon, and a dark scene spread with ground lights and stars can create an illusion known as. elevator illusions. autokinesis. false horizons.

An abrupt change from climb to straight and level flight can create the illusion of. tumbling backwards. a nose up attitude. a descent with the wings level.

A rapid acceleration during takeoff can create the illusion o f. spinning i n the opposite direction. being in a nose up attitude. diving into the ground.

Why is hypoxia particularly dangerous during flights with one pilot?. Night vision may be so impaired that the pilot cannot see other aircraf. Symptoms o f hypoxia may be difficult to recog- nize before the pilot's reactions are affected. The pilot may not be able to control the aircraft even i f using oxygen.

The sensations which lead to spatial disorientation during instrument flight conditions. are frequently encountered b y beginning instru- ment pilots, but never by pilots with moderate instrument experience. occur, in most instances, during the initial period of transition from visual t o instrument flight. must be suppressed and complete reliance placed on the indications of the flight instruments.

How can an instrument pilot best overcome spatial disorientation?. Rely on kinesthetic sense. Use a very rapid cross-check. Read and interpret the flight instruments, and act accordingly.

How can an instrument pilot best overcome spatial disorientation?. Use a very rapid cross-check. Properly interpret the flight instruments and act accordingly. Avoid banking i n excess o f 30°.

A pilot i s more subject to spatial disorientation if. kinesthetic senses are ignored. eyes are moved often i n the process o f cross- checking the flight instruments. body signals are used to interpret flight attitude.

Which procedure i s recommended t o prevent o r over- come spatial disorientation?. -Reduce head and eye movements to the extent possible. Rely on the kinesthetic sense. Rely on the indications o f the flight instruments.

What action should be taken if hyperventilation is suspected. Breathe at a slower rate by taking very deep breaths. Consciously breathe at a slower rate than normal. Consciously force yourself to take deep breaths and breathe at a faster rate than normal.