Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/4826002
Is Reference of Σταθερή ευθεία πορείας πτήσης-el#Sense
Steady straight flight-en#Sense
Gelijkmatige rechtlijnige vlucht-nl#Sense
Vakaa suora lento-fi#Sense