Langley Aerodrome No. 5, by Bell, Alexander Graham 1847-1922, May 6, 1896, Smithsonian Archives - History Div, An instantaneous photograph by Alexander Graham Bell of Langley Aerodrome No. 5 in flight May 6, 1896. This aerodrome or flying machine was developed by Samuel Pierpont Langley, 1834-1906, astrophysicist and third Secretary of the Smithsonian Institution, 1887-1906..