Samuel Pierpont Langley (August 22, 1834 in Roxbury, Massachusetts near Boston, – February 27, 1906, Aiken, South Carolina) was an United States astronomer, physicist, inventor.aeronautics pioneer and aircraft engineer.
Langley unsuccessfully competed to make the first working heavier-than-air aircraft. He was in part hindered by his use of heavy steam engines for power.
A number of things related to aviation have been named in Langley's honor, including:
NASA Langley X-43A Hyper-X
NASA Langley Research Center (NASA LaRC), Hampton, Virginia
Langley Air Force Base
Langley Memorial Auronautical Laboratory