34.60 Instrumentation, Displays and Alerts

34.60.2 Explain the importance of the following in the design of instrumentation, displays and alerts:

(a) size

Instruments, displays, symbols and warning messages must be large enough to be easily seen and interpreted from the normal seated position.

If information is too small, the pilot may need extra time or effort to read it, particularly during:

• high workload;

• turbulence;

• vibration; or

• poor lighting conditions.

Important information should be sufficiently prominent to attract attention when required.

(b) position

Displays should be positioned according to their importance and frequency of use.

Information that requires frequent monitoring should normally be within the pilot’s primary field of view, reducing the need for excessive head or eye movement.

Warning and critical flight information should be positioned where it is likely to be noticed quickly.

(c) layout

Displays should be arranged in a logical and consistent manner.