[decimon]

Ping

What say ye?

[starlifter]

These planes may be most often mistaken for UFOs, but that does not mean that most UFOs are these planes. (The old “ A->B <> B->A”).

[Quix]

Will have to check the OP later.

Generally . . .

advanced planes have often been construed to be UFO’s.

Some even reportedly have dual propulsion with anti-gravity as well as conventional but advanced conventional propulsion.

Certainly not all UFO’s are advanced planes.