MIL-I-22075C, MILITARY SPECIFICATION: INDICATOR, BEARING - DISTANCE - HEADING; ID - 663D/U (26-NOV-1984)
MIL-I-22075C, MILITARY SPECIFICATION: INDICATOR, BEARING - DISTANCE - HEADING; ID - 663D/U (26-NOV-1984)., This specification covers design requirements and all performance requirements for the procurement of one type, Bearing - Distance - Heading Indicator ID-663D/U with integral lighting, and servoed pointers and compass card.