How many letters does the top answer for “the performance of stunts while in flight in an aircraft” have?

The most common answer is aerobatics (10 letters).

Crossword clue: the performance of stunts while in flight in an aircraft

2 answers found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

aerobatics 10 letters wn-def

the performance of stunts while in flight in an aircraft

stunting 8 letters wn-def

the performance of stunts while in flight in an aircraft