airmanship vs prowess

airmanship and prowess both are nouns.

Word	Noun	Adjective	Verb	Adverb
airmanship	Yes	No	No	No
prowess	Yes	No	No	No

As nouns, prowess is a hypernym of airmanship; that is, prowess is a word with a broader meaning than airmanship:

airmanship: the art of operating aircraft
prowess: a superior skill that you can learn by study and practice and observation

Other hypernyms of airmanship include art, artistry.

airmanship (noun)	prowess (noun)
the art of operating aircraft	a superior skill that you can learn by study and practice and observation