piloting vs steerage

piloting

noun
  • The form of navigation in which position is determined by relation to external reference points. 

steerage

noun
  • The art of steering. 

  • The section of a passenger ship that provided inexpensive accommodation with no individual cabins. 

  • The effect of the helm on a ship. 

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