The Dornier Do 19 was a German four-engine heavy bomber that first flew on October 28, 1936. Only one prototype flew, and it was converted to a transport in 1938. The other two were scrapped.The Luftwaffe had a shortcoming in the lack of an efficient heavy bomber fleet. Generalleutnant Walther Wever, the Luftwaffe‍ '​s first Chief of Staff, was the most persistent advocate of a German long-range strategic bomber fleet.