aileron vs airplane

aileron

noun
  • The hinged part on the trailing edge of an airplane wing, used to control longitudinal turns. 

  • A half gable, as at the end of a penthouse or of the aisle of a church. 

airplane

noun
  • A powered heavier-than-air aircraft with fixed wings. 

verb
  • To transport by aeroplane. 

  • To fly in an aeroplane. 

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