The Mackay Trophy is awarded yearly by the United States Air Force for the "most meritorious flight of the year" by an Air Force person, persons, or organization. The trophy is housed in the Smithsonian Institution's National Air and Space Museum. The award is administered by the U.S. National Aeronautic Association.The award was established on 27 January 1911 by Clarence Hungerford Mackay, who was then head of the Postal Telegraph-Cable Company and the Commercial Cable Company.