. . . "20000"^^ . "1928Z"^^ . "1952Z"^^ . "The Polikarpov Po-2 (also U-2) served as a general-purpose Soviet biplane, nicknamed Kukuruznik (Russian: \u041A\u0443\u043A\u0443\u0440\u0443\u0437\u043D\u0438\u043A, from Russian \"kukuruza\" (\u043A\u0443\u043A\u0443\u0440\u0443\u0437\u0430) for maize; thus, \"maize duster\" or \"crop duster\"), NATO reporting name \"Mule\"."@en .