contact flight

noun
  1. a flight in which the pilot remains in sight of land or water
  2. air navigation by observation of prominent landmarks, beacons, etc
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012