#landing.arrival  the act of coming down to the earth (or other surface); "the plane made a smooth landing"; "his landing on his feet was catlike"
  supertype:  #arrival  the act of arriving at a certain place; "they awaited her arrival"
  subtype:  #aircraft_landing__airplane_landing  landing an aircraft
     subtype:  #forced_landing__emergency_landing__emergencylanding  an unscheduled airplane landing that is made under circumstances (engine failure or adverse weather) not under the pilot's control
        subtype:  #crash_landing__crashlanding  an emergency landing under circumstances where a normal landing is impossible (usually damaging the aircraft)
     subtype:  #ground-controlled_approach__GCA  aircraft landing in bad weather in which the pilot is talked down by ground control using precision approach radar
     subtype:  #three-point_landing__threepointlanding  a landing in which all three wheels of the aircraft touch the ground at the same time
     subtype:  #instrument_landing  an aircraft landing made entirely by means of instruments

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