aeronautical vs airborne

aeronautical

adj
  • Of or pertaining to the scientific study of flight 

airborne

adj
  • In flight. 

  • Fitted to an aircraft. 

  • Transported by air in an aircraft. 

  • In or carried by the air. 

noun
  • Military infantry intended to be transported by air and delivered to the battlefield by parachute or helicopter. 

How often have the words aeronautical and airborne occurred in a corpus of books? (source: Google Ngram Viewer )