flight level

EnglishEdit

 
English Wikipedia has an article on:
Wikipedia

NounEdit

flight level (plural flight levels)

  1. Any of several internationally agreed standard altitudes that are based on atmospheric pressure rather than on true height
  2. (aviation) a pressure altitude measured in terms of hundreds of feet above sea level (ie. flight level 120 (FL120) is 12,000 ft. ASL)

Derived termsEdit