On 27th July 1937 was made a test flight of a German patrol aircraft Focke-Wulf Fw 200 Condor. It was four-engine low-wing with metal construction. Despite the defects, the aircraft had significant meaning during the Battle of the Atlantic. The aircrafts could carry w tons of bombs and had 20 mm cannons, 13 or 15 mm anti-materiel machine gun, and up to 5 machine guns. It alsi carry rockets.