Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Liitosuhde-fi#Sense
Finesse-fr#Sense
Glijgetal-nl#Sense
Pendiente de planeo-es#Sense
Glide ratio-en#Sense
Glidetal-da#Sense
Razão de descida em voo planeado-pt#Sense
Glidtal-sv#Sense
Gleitzahl-de#Sense
Rapporto di planata-it#Sense