A Mil Mi-24 Hind helicopter drawing by Huang Wenting, a senior student at Nanjing University of Aeronautics and Astronautics who has been drawing airplanes for her graduate project. When some of her drawings were posted online, the Internet community was stunned by their beauty and details, and airplane fans from all over sent her their highest regards. Mil Mi-24 is produced by Mil Moscow Helicopter Plant and has been operated since 1972 by the Soviet Air Force. [Photo/ Nanjing University of Aeronautics and Astronautics]