scope:

This standard describes symbols, symbol formats, and information content for electro-optical displays that provide aircrew members with information for takeoff, navigation, terrain following/terrain avoidance, weapon delivery, and landing. It describes symbol geometry, font, recommended dimensions, and mechanizations. This document also defines the symbology requirements for a primary flight reference and describes some fundamental relationships between symbol motion and aircraft system states.

This standard does not describe symbols for electronic warfare displays which are normally classified in meaning. It does not describe qualities (other than those mentioned above) that affect legibility, such as resolution, brightness, uniformity, contrast, flicker, noise, minimum line movement, color, and the like.

This symbols in this standard apply to displays used on military aircraft.

This standard should not be used for contractual purposes until all tailoring decisions have been made and incorporated into the wording. In tailoring each requirement of sections 4 and 5, the corresponding guidance in the appendix should be considered. The requirement for a standard primary flight reference can be incorporated into a contract by requiring primary flight reference displays and symbology as defined in section 4.1.

In the event a projected design for a given application results in improved system performance, reduced life cycle cost, or reduced development cost through deviation from this standard, or where the requirements of this standard result in compromise in operational capability, the issue shall be brought to the attention of the procuring activity for consideration of change.

intended Use:

This document is intended for use in the design of symbols used on electro-optical displays in military aircraft.