MIL-A-27671B, MILITARY SPECIFICATION: AMPLIFIER-INDICATOR GROUP, ALTITUDE-VERTICAL SPEED A/A24G-11 (16-AUG-1965)

MIL-A-27671B, MILITARY SPECIFICATION: AMPLIFIER-INDICATOR GROUP, ALTITUDE-VERTICAL SPEED A/A24G-11 (16-AUG-1965)., This specification establishes the requirements for one type of aircraft altitude vertical speed amplifier-indicator group, designated A/A24G-11.