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