Ognjan M PetrovicOGNJAN PETROVIĆ was born in Krusevac, Serbia. He graduated in mechanical engineering and has worked for 30 years at the Development bureau of the 'Process equipment' factory in Krusevac at various design related activities. In 1968 he began reserching history of Serbian and Yugoslav aviation and starting in 1982 he published his first articles and drawings in both domestic and international aviation magazines. He has authored over 1200 technical drawings and color profiles of Serbian and Yugoslav aircraft and has written over 160 scientific, research and historical articles. Additionally, he has illustrated numerous books and articles for fellow authors and has co-authored several aviation books. Also, he was the author of several aviation history exhibitions and catalogues. Ognjan currently resides in Krusevac, Serbia. Read More Read Less