MIL-A-27671B (NOTICE-2), MILITARY SPECIFICATION: AMPLIFIER-INDICATOR GROUP, ALTITUDE-VERTICAL SPEED A/A24G-11 (05-NOV-2006)

MIL-A-27671B (NOTICE-2), MILITARY SPECIFICATION: AMPLIFIER-INDICATOR GROUP, ALTITUDE-VERTICAL SPEED A/A24G-11 (05-NOV-2006)., MIL-A-27671B, dated 01 January 1996, remains inactive for new design; however, the document is valid for use.