MIL-STD-879A, MILITARY STANDARD: DESIGNATION OF AIRCRAFT PROPULSION GAS TURBINE ENGINES (14 NOV 1972) [S/S BY MIL-STD-1812]

MIL-STD-879A, MILITARY STANDARD: DESIGNATION OF AIRCRAFT PROPULSION GAS TURBINE ENGINES (14 NOV 1972) [S/S BY MIL-STD-1812]., This standard describes the method, assignment, and arrangement of letters and numerals used by the Military Services in establishing the type and model designation of aircraft propulsion gas turbine engines.