US revealed test military flying discs
The US National Archives published for the first time a drawing of a US Air Force flying saucer that placed a private research and manufacturing company in the 1950s. The aircraft3 Germans invented a 16-blade, multi-purpose flying device
E-Volo - a kind of 16-blade, multi-purpose flight device invented by a number of German manufacturers made the first test flight in 1 minute and 30 seconds.