Dornier Flugzeugwerke

Dornier's most important World War II military aircraft design was the Do 17, nicknamed The Flying Pencil. It first flew in 1934 as a mailplane for Lufthansa but due to its narrow fuselage (hence its nickname) it was not commercially viable and was passed over. Dornier then developed it further as a military aircraft, with a prototype bomber flying in 1935, and in 1937 it was used in by the German Condor Legion during the Spanish Civil War. Production continued in Germany and it was developed to fill multiple roles for the Luftwaffe. As a medium bomber it saw service during the early part of World War II, particularly during the Battle of Britain. It was later developed into a nightfighter to counter the RAF bomber offensive. Dornier developed the similar looking Do 217 from the Do 17 but it was a larger and completely new design. Dornier also developed the fastest piston-engined fighter of the war, the twin-engined Do 335, which was too late to see service.