1. SCOPE:

1.1 Scope:

This specification covers the design requirements and configuration of letters, numerals, and identification for aircrew station displays and control panels.

1.2 Classification:

The control panels shall be classified as follows.

1.2.1 Classes:

Class A - Transilluminated panels conforming to MIL-P-7788.

Class B - Non-transilluminated panels conforming to MIL-C-6781.

1.2.2 Types:

Type I - White markings on black background.

Type II - White markings on gray background.