April 9, 1887
La Plata, Buenos Aires, Argentina
|Died||June 3, 1951
Buenos Aires, Argentina
|Resting place||Cementerio de la Recoleta|
|Known for||Crossing of the Andean on Hydrogen Balloon|
|Spouse(s)||Agueda Barrera Nicolson|
|Children||Agueda Bradley - Eduardo Bradley - Noemi Susana Bradley|
|Relatives||Julio Bradley, Carlos Bradley Eduardo Montes-Bradley, Ricardo Ernesto Montes i Bradley|
Eduardo Bradley (1887–1951) was an Argentine pilot and balloonist who in 1916 made the first balloon crossing of the Andes. He was a leading figure in the founding of civil aviation in South America.
Born in the city of La Plata, Argentina on April 9, 1887, Bradley was the son of Tomás Bradley Sutton, veteran of the Paraguayan War, and Mary Hayes O’Callaghan. He began his pilot's career alongside Jorge Newbery. His brevet was the first issued following the newly created regulations of the International Civil Aviation Organization. Shortly after Newbery's death in 1914, he set out to honor his late friend by attempting to cross the Andes in an aerostat. Already an experienced balloonist, Bradley had made over one hundred ascensions and set records for altitude (6,900 meters), flight duration (28 hours, 10 minutes), and distance covered in-flight (900 km, to Rio Grande do Sul from Buenos Aires).
Crossing of the Andes
Preliminary studies had determined the crossing should be eastbound, which was the direction the winds carried at the altitude required. This later required moving to Santiago de Chile to make the necessary arrangements. Eduardo Bradley presented his plans to Aero Club Argentino, which eventually provided two balloons and the necessary gear to produce high volumes of hydrogen. Although the balloons turned out to be usable, the hydrogen-producing gear was absolutely worthless. The larger of the two balloons, named Eduardo Newbery (after an Argentine aviation pioneer), was chosen by Bradley for the flight. The second balloon, named Teniente Origone, was used for testing prior to the actual crossing of the Andes.
Bradley's first choice for co-pilot was Julio Crespo Vivot, a seasoned aviator with whom he had flown while setting the record for altitude, but Vivot refused to come along on the adventure. In his stead, Bradley selected Angel María Zuloaga, a young army lieutenant.
Once in Chile the crew had serious difficulties with the generation of hydrogen, due to the accidental loss of most of the sulfuric acid imported from Argentina. Bradley decided to resort to coal gas, produced in Chile and readily available, with a high percentage of hydrogen. The odyssey would have been impossible without the cooperation of Chilean authorities, who responded more favorably to Bradley's request for support than did officials in his native Argentina. The crossing of the Andes on an aerostat filled with coal gas was finally accomplished on June 24, 1916. At an altitude of 8,100m, the temperature dropped to -30°C. The adventure lasted three and a half hours from the moment of liftoff in Santiago to the landing in Cerro de la Cepa, Uspallata, Mendoza, Argentina. Bradley and Zuloaga were welcomed in Argentina as national heroes.
The years following the crossing of the Andes were dedicated by Bradley to developing the local civil aviation industry to which he devoted the rest of his life. He pioneered NYRBA, a company founded by Ralph O’Neil, in Argentina, and was manager for Pan American Grace Airways and, later, president of Pan-American Argentina. On September 4, 1929, Bradley, then serving as secretary of the Argentine department of aviation, became the first passenger on a direct flight from Buenos Aires to Miami, flying Pan American. The journey lasted 56 hours. The purpose of his visit to the US was to compete for a second time in the Gordon Bennett Cup in ballooning. Eduardo Bradley died in Buenos Aires on June 3, 1951, and is buried in the Cementerio de la Recoleta.
- “La Plata, un belo Horizonte” Revista de Historia. Author Rogério Pereyra Arruda. January 2, 2014 
- Más liviano que el aire. Eduardo Bradley (Lighter Than Air) Historias con globos, by Nelson Montes-Bradley. Xlibris, Philadelphia, USA, 2007
- Una vida en las alturas. Memorias del autor. by Washington Bradley. Editorial Dunken, Buenos Aires, 2004
- Jorge Newbery, el conquistador del espacio. by Raúl Larra. Editorial Futuro, Buenos Aires, 1960
- La aerostación Argentina y sus precursores. by Julio Víctor Lirón. Buenos Aires, 1958.
- La victoria de las alas. Historia de la aviación Argentina. by Ángel MaríaZuloaga. El Ateneo. Buenos Aires, 1948
- La Travesía de los Andes en Globo. by Eduardo Bradley. Imprenta Argentina Jacobo Peuser, Buenos Aires, 1916
- Bulletin of the Pan American Union, Volume 48. January–June 1919. Page 313 Copy from Cornel University Library 
- Genealogies at Thomas Osgood Bradley Foundation, eighth generation
- Genealogies at Thomas Osgood Bradley Foundation, seventh generation
- "Más liviano que el aire". (Thiner Than Air) Historias con globos, A biography of Eduardo Bradley by Nelson Montes-Bradley. Philadelphia, USA, 2007
- Santos-Dumont, Alberto. “South and Central America Waiting for Aerial Transportation” 
- Freudenthal, Elsbeth E. (1952). "Conquerors of Uspallata Pass: A contribution to the history of aviation in the Americas" 9 (1). Academy of American Franciscan History. pp. 17–28. Retrieved 24 August 2013.
- "A 95 años de un cruce de los Andes “imposible”” Los Andes On Line. June 26, 2014 
- Un símbolo que no pierde vigencia. La Nación. Buenos Aires, Argentina. June 20, 2012. 
- Diario Los Andes. February 15, 2014
- "Argentine Air Racer on Way to Washington". The Miami News. 17 September 1929. Retrieved 27 January 2013.