Round the world with BMW VIIa engines.

On 22nd July 1932, the aviation pioneer Wolfgang von Gronau leaves Friedrichshafen on the first stage of a round-the-world flight in an open Dornier "Wal" powered by two BMW VIIa engines. A total flight time of 254 hours sees him cover 44,800 kilometres in a journey which takes in Greenland, North America, Japan, southern China, the Philippines, Burma, India, Persia, Athens and Rome.

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