At that time Hubbard sold some of her real estate and gave that amount of money to her husband and four others to establish the Aerial Experimental Association (AEA),Toward, 1984. pp.141–155 for the purpose of constructing "a practical flying aerodrome", Canada's first heavier-than-air vehicle, the Silver Dart. Based on their scientific experiments, the aircraft they designed and built incorporated several technical innovations not previously invented for flight, including lateral control by means of ailerons.Kermode, A.C. Mechanics of Flight, Chapter 9 (8th edition), Pitman Publishing Limited, London, 1972, . Partly because of her founding of the AEA, but also for founding social and educational institutions, she was named a National Historic Person in 2018.Government of Canada Announces New National Historic Designations, Parks Canada news release, January 12, 2018
