Display
Function of a display is to convey information accurately and rapidly from its source to the operator. Human capabilities and limitations in information processing is considered in the design of displays. Timely. appropriate. accurate, and adequate amount of information must be presented to the operator according to task requirements. It would be detrimental to task performance to present more information than required. especially when the operator is overloaded, fatigued or under stress.
Visual displays may be dynamic (e.g. altimeters and attitude indicators) or static (e.g. placards, signs, and charts) They present quantitative (e.g. altitude and heading) or qualitative (e.g. landing gear status) information. They may wm (e.g. ENGINE FIRE) or caution (e.g. oil pressure indicator or light).
Type of Displays may also be tactile/Kinaesthetic (tactile means related to the sense of touch, kinaesthetic relaied to the sense of motion) or audirory. Especially when the visual system is (or is expected to be) heavily loaded, these displays may be used to communicate information to the human operator.
Tactile/Kinaesthetic information transfer may also be applied under degraded visual condition. (A stall warning using the stick-shaker display). The auditory canal is particularly suited for alert such as warnings. For this reason, Auditory displays are generally omnidirectional.