MIL-I-27848B, MILITARY SPECIFICATION: INDICATOR, HORIZONTAL SITUATION AQU-4/A (15-NOV-1994)

MIL-I-27848B, MILITARY SPECIFICATION: INDICATOR, HORIZONTAL SITUATION AQU-4/A (15-NOV-1994)., This specification covers the requirements for one type of horizontal situation indicator, designated AQU-4/A.