Combat aviation of the USSR: long-range bomber Il-4 (DB-3F). All-metal twin-engined monoplane with closed cockpit and retractable landing gear. The first flight – 1936. Museum of the Great Patriotic War, Moscow
Combat aviation of the USSR: long-range bomber Il-4 (DB-3F). All-metal twin-engined monoplane with closed cockpit and retractable landing gear. The first flight – 1936. Museum of the Great Patriotic War, Moscow
