The Focke-Wulf Fw 190 was a German single-seat, single-engine fighter aircraft designed by Kurt Tank in the late 1930s. It was used by the Luftwaffe during the Second World War. The design was the last mass produced piston-engine German fighter to see action in the war. It partially replaced the Messerschmitt Bf 109 in 1941. By 1945, the Fw 190 operated effectively on all fronts.