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See also: a5 and A5



A-5 (plural A-5s)

  1. (military) The planning section of an Air Force staff.
    • 1948, Report of the Secretary of the Air Force to the Secretary of Defense for the fiscal year 1948:
      ...plans and civil aviation divisions were established on the staff division level as A-5.
  2. (military) Vigilante supersonic attack aircraft.