made for acts not in the course of war, and they were excused from the prohibition against accepting awards from foreign countries. The best in flight Mackay Trophy for 1924 was awarded to Smith, Arnold, Wade, Nelson and Ogden. Later, Martin was in command of Army aviation units in Hawaii at the time of the Japanese attack on Pearl Harbor. His mechanic Harvey was commissioned and commanded heavy bomb groups during World War II. Nelson rose to the rank of colonel and became one of General Henry Arnold's chief trouble-shooters on the development and operational deployment of the Boeing B-29 Superfortress. Cross-equator circumnavigation The first aerial circumnavigation of the world that involved the crossing of the equator twice was made using a single aircraft, the Southern Cross, a Fokker F.VIIb/3m trimotor monoplane crewed by Charles Kingsford Smith (lead pilot), Charles Ulm (relief pilot), James Warner (radio operator), and Harry Lyon (navigator and engineer). After completing the first trans-Pacific crossing on 9 June 1928, flying from Oakland, California to Brisbane, Australia, Kingsford Smith and Ulm spent several months making other long-distance flights across Australia and to New Zealand. They decided to use their trans-Pacific flight as the first leg of a globe-circling flight. They flew the Southern Cross to England in June 1929, then across the Atlantic and North America, returning, in 1930, to Oakland where their trans-Pacific flight had begun. Before Kingsford Smith's death in 1935, he donated the Southern Cross to the Commonwealth of Australia, for display in a museum. The aircraft is preserved in a special glass 'hangar' memorial on Airport Drive, near the International Terminal at Brisbane Airport in Queensland, Australia. See also List of circumnavigations: Aerial References Notes Citations Bibliography Boyne, Walter J. The Aircraft Treasures Of Silver Hill: The Behind-The-Scenes Workshop Of The National Air And Space Museum. New York: Rawson Associates, 1982. . Bryan, Courtlandt Dixon Barnes. The National Air and Space Museum. New York: Harry N. Abrams, Inc., 1979. . Cross, Roy. Great Aircraft and Their Pilots. New York: New York Graphic Society, 1972. . Donald, David, ed. Encyclopedia of World Aircraft. Etobicoke, Ontario: Prospero Books, 1997. . Francillon, René J. McDonnell Douglas Aircraft Since 1920: Volume I. London: Putnam, 1979. . Haber, Barbara Angle. The National Air and Space Museum. London: Bison Group, 1995. . Mackworth-Praed, Ben. Aviation: The Pioneer Years. London: Studio Editions, 1990. . Ogden, Bob. Great Aircraft Collections of