Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/4826002
Is Reference of Lentokelpoisuusluokka-fi#Sense
Κατηγορία πτητικής ικανότητας-el#Sense
Category of airworthiness-en#Sense
Category of Airworthiness-en#Sense
Categorie van luchtwaardigheid-nl#Sense