Arseny Dmitrievich Mironov (25 December 1917 – 3 July 2019) was a Russian scientist, aerospace engineer, and aviator. He was one of the oldest researchers in aircraft aerodynamics and flight testing, a Gromov Flight Research Institute (GFRI) director from 1981 to 1985, a recipient of the Stalin Prize in 1948 and the USSR State Prize in 1976, and an honorary citizen of Zhukovsky. Mironov contributed to aviation engineering and research through the GFRI, serving as a flight test engineer, researcher, and director. He turned 100 in December 2017. Early life Mironov was born in Vladimir. His father was Dmitry I. Mironov (; 1884–1956), an engineer-electrician who worked for hydroelectric power station Klasson in Moscow Oblast and later for electric company Mosenergo in Moscow. His mother was Maria Mikhailovna Ilyicheva (; 1889–1982), who was a housewife. Two years after leaving school, Mironov worked as a factory electrician. Career Early years In 1936, Mironov entered the Moscow Aviation Institute (MAI) at a new course Flight Testing and graduated in 1941. In May 1941, he started working for the Gromov Flight Research Institute (GFRI) within the Minaviaprom of the USSR. Scientific career In the GFRI, Mironov primarily did engineering and research. He started as a flight test engineer just three days before the beginning of the Great Patriotic War. During the war, he participated in the serial production of fighter planes, which included flight and ground testing (to eliminate quality defects in the aircraft's flying and fighting capabilities) conducted by the GFRI and aircraft manufacturers. Post-war, Mironov developed methods for aerodynamic research using free-flying models, making a breakthrough in collecting in-flight data concerning wing profile pressure distribution at transonic speeds. As a lead scientist, he organized the GFRI's flight research in aeroplanes' physical aerodynamics and associated environment effects, including the sonic boom impact of supersonic aeroplanes. In 1968-1975, Mironov together with V. S. Grachev conducted flight studies of the aerodynamic characteristics of an experimental ogival delta wing designed for the then developing supersonic airliner Tupolev Tu-144. These studies were conducted at the GFRI on one of the two specially created testbed aeroplanes MiG-21I (I - from the imitator). The research flights were performed by Igor Volk, Oleg Gudkov and Vladislav Loychikov. Mironov participated in the development and implementation of the Aircraft Testing Handbooks, a series of official guides for the flight and ground testing of military aircraft. He played a major role in