stunt flying vs acrobatics

stunt flying and acrobatics both are nouns.

Word	Noun	Adjective	Verb	Adverb
stunt flying	Yes	No	No	No
acrobatics	Yes	No	No	No

As nouns, stunt flying and acrobatics are synonyms defined as:

stunt flying and acrobatics: the performance of stunts while in flight in an aircraft

Other synonyms of stunt flying include aerobatics, stunting.

stunt flying (noun)	acrobatics (noun)
the performance of stunts while in flight in an aircraft	the gymnastic moves of an acrobat
	the performance of stunts while in flight in an aircraft