Retro aircraft po-2 created under the leadership of n. n. polikarpov in 1928Retro aircraft po-2 created under the leadership of N. N. Polikarpov in 1928
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Retro aircraft po-2 created under the leadership of n. n. polikarpov in 1928Retro aircraft po-2 created under the leadership of N. N. Polikarpov in 1928