Dornier Do X seaplane 'Zephir' before take off from a catapult, 1936

The Dornier seaplane 'Zephir' stands ready to take off on board the catapult ship 'Schwabenland' near Horta on the Azores island Fayal. The crew boards the aircraft. Two Do 18 seaplanes were introduced by Lufthansa in the fall of 1936 for regular airmail service between the Azores and New York. Ships stationed at high sea functioned to fuel the planes., 01.09.1936-30.09.1936 Foto: Sueddeutsche Zeitung / IBL Bildbyrå