MIL-STD-250D (NOTICE 1), MILITARY STANDARD: AIRCREW STATION CONTROLS AND DISPLAYS FOR ROTARY WING AIRCRAFT (30 SEP 1989) [NO S/S DOCUMENT]

MIL-STD-250D (NOTICE 1), MILITARY STANDARD: AIRCREW STATION CONTROLS AND DISPLAYS FOR ROTARY WING AIRCRAFT (30 SEP 1989) [NO S/S DOCUMENT]., MIL-STD-250D, dated 28 August 1974, has been reviewed and determined to be valid for use in acquisition.