High Quality Content by WIKIPEDIA articles! Assen "Jerry" Jordanoff (Bulgarian: Асен Христов Йорданов) (born Asen Khristov Yordanov, September 2, 1896, Sofia, Bulgaria – d. October 19, 1967, White Plains, New York) was a Bulgarian American inventor, engineer, and aviator. Jordanoff is considered to be the founder of aeronautical engineering in Bulgaria, as well as a contributor to the development of aviation in America.