[Gunslingr3]

It was a secret weapon with a vectored thrust engine like the Harrier, which has been observed turning right angle corners. 1950s and 60s technology with some fancy new propulsion upgrades.

Harrier doesn't actually make any 90' turns.

More importantly, vectored thrust shows up on FLIR.

No such plumes are visible on the FLIR of the UFO.

[Kevmo]

Like I said, fancy new upgrades for unmanned drones that can handle very high G forces.

https://freerepublic.com/focus/f-news/1342535/posts

Yes the Harrier DOES turn at a right angle. Do a search for “turns a square corner” on that link. Much less reason to take your word for it than someone who was flying a chase plane behind the Kestrel.

[Kevmo]

That’s a picture of a Harrier from the side during a vertical landing. FLIR is FORWARD Looking Infrared and the plumes would be hidden by the Harrier’s wing.