The All-DIrectional Flying Object, or ADIFO for short, is perhaps the only uniquely aerodynamically shaped aircraft we have seen to date, well, that’s unless if Pentagon begs to differ, if you know what I mean. As you can see, ADIFO disc form does really makes it looks like the UFO mankind have imagine it to be. In reality, it is a very Earthly contraption that uses both horizontal rotors like any quadcopter to operate at low speed and jet engines to achieve high speed horizontal flight.
https://www.youtube.com/watch?v=0XbQdMV7i0whttps://www.adifoaircraft.com/