instrument flying vs navigation

instrument flying and navigation both are nouns.

Word	Noun	Adjective	Verb	Adverb
instrument flying	Yes	No	No	No
navigation	Yes	No	No	No

As nouns, navigation is a hypernym of instrument flying; that is, navigation is a word with a broader meaning than instrument flying:

Other hypernyms of instrument flying include pilotage, piloting.

instrument flying (noun)	navigation (noun)
navigation of an airplane solely by instruments	the guidance of ships or airplanes from place to place
	the work of a sailor
	ship traffic