a. Awareness of Illusion Factors. You must have an awareness that
visual illusions exist. Knowing what illusions are and when they are most
likely to be experienced will enable the pilot to consciously modify his
b. Prior Planning. Good prior planning will refresh in the pilot's
mind the illusions that may be created by the flight conditions and enhance
his perceptual ability.
c. Rely on Instruments. Even under visual flight conditions a pilot
should cross-check his instruments before altering the attitude of his
aircraft based only on a perception. For example, if you perceive that the
aircraft is banking, cross-check your instruments before changing the
attitude of the aircraft to what you perceive to be a level attitude.
d. Don't Be Afraid to Make a Go-Around. Whenever you perceive
something substantially different than expected, you should discontinue the
approach. It is better to feel a little silly for making an unnecessary go-
around than to risk an aircraft mishap.