 In 1932 Hermann Blohm's sons founded the Hamburger Flugzeugbau (HFB) to make all-metal aeroplanes in the shipyards, which were suffering from the global depression.For several years the HFB offices occupied the top floor of the B&V main headquarters in Steinwerder and the aircraft were manufactured at the Steinwerder works.When shipbuilding picked up again in the late 1930s the aircraft work was moved elsewhere.