Jean Marie Le Bris John Stringfellow Clement Adler Alphonse Penaud
Petrol motor airship Helium Airship Long distance airship Electric motor airship
Jean Pilatre de Rozier Henri Giffard Jacques Alexandre Charles Joseph & Ettiene Montgolfier
Sir George Cayley John Stringfellow Clement Adler Alphonse Penaud
Jean Marie Le Bris John Stringfellow Sir George Cayley Alphonse Penaud
Clement Adler Jean Marie Le Bris Sir George Cayley Alphonse Penaud