_:n1f54beb38e404275b911e5b480209b6dxb0
<http://schema.org/description>
"A two-year \"free-flight\" test programme is set to begin in Alaska and Hawaii during 1999, following US Government approval of the so-called Ha-laska free-flight demonstration project."
<https://www.flightglobal.com/us-picks-states-for-free-flight-tests/820.article>