MIL-D-70789A (NOTICE-1), MILITARY SPECIFICATION: DYNAMIC REFERENCE UNIT (DRU) (18-AUG-1997).,

MIL-D-70789A (NOTICE-1), MILITARY SPECIFICATION: DYNAMIC REFERENCE UNIT (DRU) (18-AUG-1997)., This notice should be filed in front of MIL-D-70789A(AR) dated 15 June 1992 MIL-D-70789A(AR) dated 15 June 1992 with Amendment 2, dated 9 November 1994 is inactive for new design and no longer used except for replacement purposes.